The remote Ubuntu 16.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6014-1 advisory.

    Xuewei Feng, Chuanpu Fu, Qi Li, Kun Sun, and Ke Xu discovered that the TCP implementation in the Linux     kernel did not properly handle IPID assignment. A remote attacker could use this to cause a denial of     service (connection termination) or inject forged data. (CVE-2020-36516)

    Ke Sun, Alyssa Milburn, Henrique Kawakami, Emma Benoit, Igor Chervatyuk, Lisa Aichele, and Thais Moreira     Hamasaki discovered that the Spectre Variant 2 mitigations for AMD processors on Linux were insufficient     in some situations. A local attacker could possibly use this to expose sensitive information.
    (CVE-2021-26401)

    Jrgen Gro discovered that the Xen subsystem within the Linux kernel did not adequately limit the     number of events driver domains (unprivileged PV backends) could send to other guest VMs. An attacker in a     driver domain could use this to cause a denial of service in other guest VMs. (CVE-2021-28711,     CVE-2021-28712, CVE-2021-28713)

    Wolfgang Frisch discovered that the ext4 file system implementation in the Linux kernel contained an     integer overflow when handling metadata inode extents. An attacker could use this to construct a malicious     ext4 file system image that, when mounted, could cause a denial of service (system crash). (CVE-2021-3428)

    It was discovered that the IEEE 802.15.4 wireless network subsystem in the Linux kernel did not properly     handle certain error conditions, leading to a null pointer dereference vulnerability. A local attacker     could possibly use this to cause a denial of service (system crash). (CVE-2021-3659)

    It was discovered that the System V IPC implementation in the Linux kernel did not properly handle large     shared memory counts. A local attacker could use this to cause a denial of service (memory exhaustion).
    (CVE-2021-3669)

    Alois Wohlschlager discovered that the overlay file system in the Linux kernel did not restrict private     clones in some situations. An attacker could use this to expose sensitive information. (CVE-2021-3732)

    It was discovered that the SCTP protocol implementation in the Linux kernel did not properly verify VTAGs     in some situations. A remote attacker could possibly use this to cause a denial of service (connection     disassociation). (CVE-2021-3772)

    It was discovered that the btrfs file system implementation in the Linux kernel did not properly handle     locking in certain error conditions. A local attacker could use this to cause a denial of service (kernel     deadlock). (CVE-2021-4149)

    Jann Horn discovered that the socket subsystem in the Linux kernel contained a race condition when     handling listen() and connect() operations, leading to a read-after-free vulnerability. A local attacker     could use this to cause a denial of service (system crash) or possibly expose sensitive information.
    (CVE-2021-4203)

    It was discovered that the file system quotas implementation in the Linux kernel did not properly validate     the quota block number. An attacker could use this to construct a malicious file system image that, when     mounted and operated on, could cause a denial of service (system crash). (CVE-2021-45868)

    Zhihua Yao discovered that the MOXART SD/MMC driver in the Linux kernel did not properly handle device     removal, leading to a use-after-free vulnerability. A physically proximate attacker could possibly use     this to cause a denial of service (system crash). (CVE-2022-0487)

    It was discovered that the block layer subsystem in the Linux kernel did not properly initialize memory in     some situations. A privileged local attacker could use this to expose sensitive information (kernel     memory). (CVE-2022-0494)

    It was discovered that the UDF file system implementation in the Linux kernel could attempt to dereference     a null pointer in some situations. An attacker could use this to construct a malicious UDF image that,     when mounted and operated on, could cause a denial of service (system crash). (CVE-2022-0617)

    David Bouman discovered that the netfilter subsystem in the Linux kernel did not initialize memory in some     situations. A local attacker could use this to expose sensitive information (kernel memory).
    (CVE-2022-1016)

    It was discovered that the implementation of the 6pack and mkiss protocols in the Linux kernel did not     handle detach events properly in some situations, leading to a use-after-free vulnerability. A local     attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1195)

    Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol implementation in the Linux     kernel, leading to use-after-free vulnerabilities. A local attacker could possibly use this to cause a     denial of service (system crash). (CVE-2022-1205)

    It was discovered that the tty subsystem in the Linux kernel contained a race condition in certain     situations, leading to an out-of-bounds read vulnerability. A local attacker could possibly use this to     cause a denial of service (system crash) or expose sensitive information. (CVE-2022-1462)

    It was discovered that the implementation of X.25 network protocols in the Linux kernel did not terminate     link layer sessions properly. A local attacker could possibly use this to cause a denial of service     (system crash). (CVE-2022-1516)

    Duoming Zhou discovered a race condition in the NFC subsystem in the Linux kernel, leading to a use-after-     free vulnerability. A privileged local attacker could use this to cause a denial of service (system crash)     or possibly execute arbitrary code. (CVE-2022-1974)

    Duoming Zhou discovered that the NFC subsystem in the Linux kernel did not properly prevent context     switches from occurring during certain atomic context operations. A privileged local attacker could use     this to cause a denial of service (system crash). (CVE-2022-1975)

    It was discovered that the HID subsystem in the Linux kernel did not properly validate inputs in certain     conditions. A local attacker with physical access could plug in a specially crafted USB device to expose     sensitive information. (CVE-2022-20132)

    It was discovered that the device-mapper verity (dm-verity) driver in the Linux kernel did not properly     verify targets being loaded into the device- mapper table. A privileged attacker could use this to cause a     denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-20572, CVE-2022-2503)

    Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux     kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use     this to cause a denial of service (system crash). (CVE-2022-2318)

    Zheyu Ma discovered that the Silicon Motion SM712 framebuffer driver in the Linux kernel did not properly     handle very small reads. A local attacker could use this to cause a denial of service (system crash).
    (CVE-2022-2380)

    David Leadbeater discovered that the netfilter IRC protocol tracking implementation in the Linux Kernel     incorrectly handled certain message payloads in some situations. A remote attacker could possibly use this     to cause a denial of service or bypass firewall filtering. (CVE-2022-2663)

    Lucas Leong discovered that the LightNVM subsystem in the Linux kernel did not properly handle data     lengths in certain situations. A privileged attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2022-2991)

    It was discovered that the Intel 740 frame buffer driver in the Linux kernel contained a divide by zero     vulnerability. A local attacker could use this to cause a denial of service (system crash).
    (CVE-2022-3061)

    Jiasheng Jiang discovered that the wm8350 charger driver in the Linux kernel did not properly deallocate     memory, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a     denial of service (system crash). (CVE-2022-3111)

    It was discovered that the sound subsystem in the Linux kernel contained a race condition in some     situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3303)

    It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform     bounds checking in some situations. A physically proximate attacker could use this to craft a malicious     USB device that when inserted, could cause a denial of service (system crash) or possibly execute     arbitrary code. (CVE-2022-3628)

    Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the Linux kernel contained an out-of-     bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash).
    (CVE-2022-36280)

    It was discovered that the NILFS2 file system implementation in the Linux kernel did not properly     deallocate memory in certain error conditions. An attacker could use this to cause a denial of service     (memory exhaustion). (CVE-2022-3646)

    It was discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a     reference counting error. A local attacker could use this to cause a denial of service (system crash).
    (CVE-2022-36879)

    It was discovered that the infrared transceiver USB driver did not properly handle USB control messages. A     local attacker with physical access could plug in a specially crafted USB device to cause a denial of     service (memory exhaustion). (CVE-2022-3903)

    Jann Horn discovered a race condition existed in the Linux kernel when unmapping VMAs in certain     situations, resulting in possible use-after-free vulnerabilities. A local attacker could possibly use this     to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-39188)

    Hyunwoo Kim discovered that the DVB Core driver in the Linux kernel did not properly perform reference     counting in some situations, leading to a use- after-free vulnerability. A local attacker could use this     to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-41218)

    It was discovered that a race condition existed in the SMSC UFX USB driver implementation in the Linux     kernel, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause     a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-41849)

    It was discovered that a race condition existed in the Roccat HID driver in the Linux kernel, leading to a     use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash)     or possibly execute arbitrary code. (CVE-2022-41850)

    It was discovered that the USB core subsystem in the Linux kernel did not properly handle nested reset     events. A local attacker with physical access could plug in a specially crafted USB device to cause a     denial of service (kernel deadlock). (CVE-2022-4662)

    It was discovered that the network queuing discipline implementation in the Linux kernel contained a null     pointer dereference in some situations. A local attacker could use this to cause a denial of service     (system crash). (CVE-2022-47929)

    Kyle Zeng discovered that the IPv6 implementation in the Linux kernel contained a NULL pointer dereference     vulnerability in certain situations. A local attacker could use this to cause a denial of service (system     crash). (CVE-2023-0394)

    It was discovered that a memory leak existed in the SCTP protocol implementation in the Linux kernel. A     local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2023-1074)

    Mingi Cho discovered that the netfilter subsystem in the Linux kernel did not properly initialize a data     structure, leading to a null pointer dereference vulnerability. An attacker could use this to cause a     denial of service (system crash). (CVE-2023-1095)

    Kyle Zeng discovered that the ATM VC queuing discipline implementation in the Linux kernel contained a     type confusion vulnerability in some situations. An attacker could use this to cause a denial of service     (system crash). (CVE-2023-23455)

    Lianhui Tang discovered that the MPLS implementation in the Linux kernel did not properly handle certain     sysctl allocation failure conditions, leading to a double-free vulnerability. An attacker could use this     to cause a denial of service or possibly execute arbitrary code. (CVE-2023-26545)

    It was discovered that the NTFS file system implementation in the Linux kernel did not properly validate     attributes in certain situations, leading to an out-of-bounds read vulnerability. A local attacker could     possibly use this to expose sensitive information (kernel memory). (CVE-2023-26607)

    Duoming Zhou discovered that a race condition existed in the infrared receiver/transceiver driver in the     Linux kernel, leading to a use-after- free vulnerability. A privileged attacker could use this to cause a     denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-1118)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the linux package has been released.

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1267-1 advisory.

  - Product: AndroidVersions: Android kernelAndroid ID: A-173788806References: Upstream kernel     (CVE-2021-39713)

  - In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota     tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a     corrupted quota file. (CVE-2021-45868)

  - An information leak flaw was found in NFS over RDMA in the net/sunrpc/xprtrdma/rpc_rdma.c in the Linux     Kernel. This flaw allows an attacker with normal user privileges to leak kernel information.
    (CVE-2022-0812)

  - A vulnerability was found in linux kernel, where an information leak occurs via ext4_extent_header to     userspace. (CVE-2022-0850)

  - A flaw was found in the Linux kernel in net/netfilter/nf_tables_core.c:nft_do_chain, which can cause a     use-after-free. This issue needs to handle 'return' with proper preconditions, as it can lead to a kernel     information leak problem caused by a local, unprivileged attacker. (CVE-2022-1016)

  - A use-after-free flaw was found in the Linux kernel's sound subsystem in the way a user triggers     concurrent calls of PCM hw_params. The hw_free ioctls or similar race condition happens inside ALSA PCM     for other ioctls. This flaw allows a local user to crash or potentially escalate their privileges on the     system. (CVE-2022-1048)

  - Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to     multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV     device frontends are using the grant table interfaces for removing access rights of the backends in ways     being subject to race conditions, resulting in potential data leaks, data corruption by malicious     backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the     gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they     assume that a following removal of the granted access will always succeed, which is not true in case the     backend has mapped the granted page between those two operations. As a result the backend can keep access     to the memory page of the guest no matter how the page will be used after the frontend I/O has finished.
    The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of     a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038     gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus,     9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no     longer in use, but the freeing of the related data page is not synchronized with dropping the granted     access. As a result the backend can keep access to the memory page even after it has been freed and then     re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to     revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which     can be triggered by the backend. CVE-2022-23042 (CVE-2022-23036, CVE-2022-23037, CVE-2022-23038,     CVE-2022-23039, CVE-2022-23040, CVE-2022-23041, CVE-2022-23042)

  - st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has     EVT_TRANSACTION buffer overflows because of untrusted length parameters. (CVE-2022-26490)

  - An issue was discovered in the Linux kernel before 5.16.12. drivers/net/usb/sr9700.c allows attackers to     obtain sensitive information from heap memory via crafted frame lengths from a device. (CVE-2022-26966)

  - A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and     net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap     objects and may cause a local privilege escalation threat. (CVE-2022-27666)

  - In the Linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c. (CVE-2022-28356)

  - usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c in the Linux kernel through 5.17.1 has a double     free. (CVE-2022-28388)

  - mcba_usb_start_xmit in drivers/net/can/usb/mcba_usb.c in the Linux kernel through 5.17.1 has a double     free. (CVE-2022-28389)

  - ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c in the Linux kernel through 5.17.1 has a double free.
    (CVE-2022-28390)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota     tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a     corrupted quota file. (CVE-2021-45868)

Note that Nessus relies on the presence of the package as reported by the vendor.

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent     Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a     network. Under the right circumstances, when another device sends fragmented frames encrypted using WEP,     CCMP, or GCMP, this can be abused to inject arbitrary network packets and/or exfiltrate user data.
    (CVE-2020-24586)

  - The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent     Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary     can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP,     CCMP, or GCMP encryption key is periodically renewed. (CVE-2020-24587)

  - The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent     Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated.
    Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an     adversary can abuse this to inject arbitrary network packets. (CVE-2020-24588)

  - An issue was discovered in the kernel in NetBSD 7.1. An Access Point (AP) forwards EAPOL frames to other     clients even though the sender has not yet successfully authenticated to the AP. This might be abused in     projected Wi-Fi networks to launch denial-of-service attacks against connected clients and makes it easier     to exploit other vulnerabilities in connected clients. (CVE-2020-26139)

  - An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H. The WEP, WPA, WPA2, and     WPA3 implementations accept plaintext frames in a protected Wi-Fi network. An adversary can abuse this to     inject arbitrary data frames independent of the network configuration. (CVE-2020-26140)

  - An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H. The Wi-Fi implementation     does not verify the Message Integrity Check (authenticity) of fragmented TKIP frames. An adversary can     abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-     confidentiality protocol. (CVE-2020-26141)

  - An issue was discovered in the kernel in OpenBSD 6.6. The WEP, WPA, WPA2, and WPA3 implementations treat     fragmented frames as full frames. An adversary can abuse this to inject arbitrary network packets,     independent of the network configuration. (CVE-2020-26142)

  - An issue was discovered in the ALFA Windows 10 driver 1030.36.604 for AWUS036ACH. The WEP, WPA, WPA2, and     WPA3 implementations accept fragmented plaintext frames in a protected Wi-Fi network. An adversary can     abuse this to inject arbitrary data frames independent of the network configuration. (CVE-2020-26143)

  - A flaw was found in the Linux kernel, where the WiFi implementations accept plaintext A-MSDU frames as     long as the first 8 bytes correspond to a valid RFC1042 (ex., LLC/SNAP) header for EAPOL. The highest     threat from this vulnerability is to integrity. (CVE-2020-26144)

  - An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3     implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process     them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets     independent of the network configuration. (CVE-2020-26145)

  - A vulnerability was found in Linux kernel, where the WiFi implementation reassemble fragments with non-     consecutive packet numbers. An adversary can abuse this to exfiltrate selected fragments. This     vulnerability is exploitable when another device sends fragmented frames and the WEP, CCMP, or GCMP data-     confidentiality protocol is used. Note that WEP is vulnerable to this attack by design. (CVE-2020-26146)

  - An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble     fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject     packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP,     CCMP, or GCMP data-confidentiality protocol is used. (CVE-2020-26147)

  - In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This     could lead to local escalation of privilege with System execution privileges needed. User interaction is     not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References:
    Upstream kernel (CVE-2021-0920)

  - In memzero_explicit of compiler-clang.h, there is a possible bypass of defense in depth due to     uninitialized data. This could lead to local information disclosure with no additional execution     privileges needed. User interaction is not needed for exploitation. (CVE-2021-0938)

  - In bpf_skb_change_head of filter.c, there is a possible out of bounds read due to a use after free. This     could lead to local escalation of privilege with System execution privileges needed. User interaction is     not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-154177719References:
    Upstream kernel (CVE-2021-0941)

  - A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users     do rename in specific way with OverlayFS. A local user could use this flaw to crash the system.
    (CVE-2021-20321)

  - A denial-of-service (DoS) flaw was identified in the Linux kernel due to an incorrect memory barrier in     xt_replace_table in net/netfilter/x_tables.c in the netfilter subsystem. (CVE-2021-29650)

  - Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may allow     an authenticated user to potentially enable denial of service via local access. (CVE-2021-33098)

  - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from     kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects     the possibility of uninitialized memory locations on the BPF stack. (CVE-2021-34556)

  - In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from     kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store     operation does not necessarily occur before a store operation that has an attacker-controlled value.
    (CVE-2021-35477)

  - A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on     inbound SCTP packets may allow the kernel to read uninitialized memory. (CVE-2021-3655)

  - A flaw was found in the Linux kernel. A memory leak in the ccp-ops crypto driver can allow attackers to     cause a denial of service. This vulnerability is similar with the older CVE-2019-18808. The highest threat     from this vulnerability is to system availability. (CVE-2021-3744)

  - A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker     to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat     from this vulnerability is to system availability. (CVE-2021-3764)

  - A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP     association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and     the attacker can send packets with spoofed IP addresses. (CVE-2021-3772)

  - net/netfilter/nf_conntrack_standalone.c in the Linux kernel before 5.12.2 allows observation of changes in     any net namespace because these changes are leaked into all other net namespaces. This is related to the     NF_SYSCTL_CT_MAX, NF_SYSCTL_CT_EXPECT_MAX, and NF_SYSCTL_CT_BUCKETS sysctls. (CVE-2021-38209)

  - In gre_handle_offloads of ip_gre.c, there is a possible page fault due to an invalid memory access. This     could lead to local information disclosure with no additional execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-150694665References: Upstream kernel (CVE-2021-39633)

  - In fs/eventpoll.c, there is a possible use after free. This could lead to local escalation of privilege     with no additional execution privileges needed. User interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID: A-204450605References: Upstream kernel (CVE-2021-39634)

  - In aio_poll_complete_work of aio.c, there is a possible memory corruption due to a use after free. This     could lead to local escalation of privilege with no additional execution privileges needed. User     interaction is not needed for exploitation. (CVE-2021-39698)

  - A use-after-free flaw was found in the Linux kernel's network scheduling subsystem due to a race     condition.This flaw allows a local user to cause a denial of service (memory corruption or crash) or     privilege escalation. (CVE-2021-39713)

  - A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some     regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the     memory pages. A local user could use this flaw to get unauthorized access to some data. (CVE-2021-4002)

  - A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the LInux kernel that     allows local users to create files for the XFS file-system with an unintended group ownership and with     group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a     certain group and is writable by a user who is not a member of this group. This can lead to excessive     permissions granted in case when they should not. This vulnerability is similar to the previous     CVE-2018-13405 and adds the missed fix for the XFS. (CVE-2021-4037)

  - A read-after-free memory flaw was found in the Linux kernel s garbage collection for Unix domain socket     file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race     condition. This flaw allows a local user to crash the system or escalate their privileges o     (CVE-2021-4083)

  - A flaw memory leak in the Linux kernel's eBPF for the Simulated networking device driver in the way user     uses BPF for the device such that function nsim_map_alloc_elem being called. A local user could use this     flaw to get unauthorized access to some data. (CVE-2021-4135)

  - An out of memory bounds write flaw (1 or 2 bytes of memory) in the Linux kernel NFS subsystem was found in     the way users use mirroring (replication of files with NFS). A user, having access to the NFS mount, could     potentially use this flaw to crash the system or escalate privileges on the system. (CVE-2021-4157)

  - A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures.
    Internal memory locations could be returned to userspace. A local attacker with the permissions to insert     eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit     mitigations in place for the kernel. (CVE-2021-4159)

  - A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11.
    This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory     object. (CVE-2021-44733)

  - In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information     leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based     attackers can typically choose among many IPv6 source addresses. (CVE-2021-45485)

  - In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak     because the hash table is very small. (CVE-2021-45486)

  - In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota     tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a     corrupted quota file. (CVE-2021-45868)

  - Non-transparent sharing of branch predictor selectors between contexts in some Intel(R) Processors may     allow an authorized user to potentially enable information disclosure via local access. (CVE-2022-0001)

  - Non-transparent sharing of branch predictor within a context in some Intel(R) Processors may allow an     authorized user to potentially enable information disclosure via local access. (CVE-2022-0002)

  - A vulnerability was found in the Linux kernel's cgroup_release_agent_write in the     kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups     v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.
    (CVE-2022-0492)

  - A kernel information leak flaw was identified in the scsi_ioctl function in drivers/scsi/scsi_ioctl.c in     the Linux kernel. This flaw allows a local attacker with a special user privilege (CAP_SYS_ADMIN or     CAP_SYS_RAWIO) to create issues with confidentiality. (CVE-2022-0494)

  - A flaw null pointer dereference in the Linux kernel UDF file system functionality was found in the way     user triggers udf_file_write_iter function for the malicious UDF image. A local user could use this flaw     to crash the system. Actual from Linux kernel 4.2-rc1 till 5.17-rc2. (CVE-2022-0617)

  - A flaw use after free in the Linux kernel FUSE filesystem was found in the way user triggers write(). A     local user could use this flaw to get some unauthorized access to some data from the FUSE filesystem and     as result potentially privilege escalation too. (CVE-2022-1011)

  - Due to the small table perturb size, a memory leak flaw was found in the Linux kernel's TCP source port     generation algorithm in the net/ipv4/tcp.c function. This flaw allows an attacker to leak information and     may cause a denial of service. (CVE-2022-1012)

  - A flaw was found in the Linux kernel in net/netfilter/nf_tables_core.c:nft_do_chain,which can cause a use-     after-free.This issue needs to handle return with proper preconditions,as it can lead to a kernel     information leak problem caused by a local,unprivileged attacker. (CVE-2022-1016)

  - A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel.This flaw     allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a leak of     internal kernel information. (CVE-2022-1353)

  - An issue was discovered in the Linux Kernel from 4.18 to 4.19, an improper update of sock reference in TCP     pacing can lead to memory/netns leak, which can be used by remote clients. (CVE-2022-1678)

  - Kernel-headers includes the C header files that specify the interfacebetween the Linux kernel and     userspace libraries and programs.  Theheader files define structures and constants that are needed     forbuilding most standard programs and are also needed for rebuilding theglibc package. (CVE-2022-1729)

  - In mmc_blk_read_single of block.c, there is a possible way to read kernel heap memory due to uninitialized     data. This could lead to local information disclosure if reading from an SD card that triggers errors,     with no additional execution privileges needed. User interaction is not needed for exploitation.
    (CVE-2022-20008)

  - In lg_probe and related functions of hid-lg.c and other USB HID files, there is a possible out of bounds     read due to improper input validation. This could lead to local information disclosure if a malicious USB     HID device were plugged in, with no additional execution privileges needed. User interaction is not needed     for exploitation. (CVE-2022-20132)

  - In ip_check_mc_rcu of igmp.c, there is a possible use after free due to improper locking. This could lead     to local escalation of privilege when opening and closing inet sockets with no additional execution     privileges needed. User interaction is not needed for exploitation. (CVE-2022-20141)

  - Certain Arm Cortex and Neoverse processors through 2022-03-08 do not properly restrict cache speculation,     aka Spectre-BHB.An attacker can leverage the shared branch history in the Branch History Buffer (BHB) to     influence mispredicted branches.Then, cache allocation can allow the attacker to obtain sensitive     information. (CVE-2022-23960)

  - An issue was discovered in fs/nfs/dir.c in the Linux kernel before 5.16.5. If an application sets the     O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a     regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file     descriptor. (CVE-2022-24448)

  - A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and     net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap     objects and may cause a local privilege escalation threat. (CVE-2022-27666)

  - usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c in the Linux kernel through 5.17.1 has a double     free. (CVE-2022-28388)

  - ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c in the Linux kernel through 5.17.1 has a double free.
    (CVE-2022-28390)

  - Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to     cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14     and later versions. (CVE-2022-29581)

  - The Linux kernel before 5.17.2 mishandles seccomp permissions. The PTRACE_SEIZE code path allows attackers     to bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag. (CVE-2022-30594)

  - net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create     user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to     a use-after-free. (CVE-2022-32250)

  - The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are     used. (CVE-2022-32296)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1257-1 advisory.

    The SUSE Linux Enterprise 15 SP2 RT kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2022-0854: Fixed a memory leak flaw was found in the Linux kernels DMA subsystem. This flaw allowed     a local user to read random memory from the kernel space (bnc#1196823).
    - CVE-2022-28388: Fixed a double free in drivers/net/can/usb/usb_8dev.c vulnerability in the Linux kernel     (bnc#1198032).
    - CVE-2022-28389: Fixed a double free in drivers/net/can/usb/mcba_usb.c vulnerability in the Linux kernel     (bnc#1198033).
    - CVE-2022-28390: Fixed a double free in drivers/net/can/usb/ems_usb.c vulnerability in the Linux kernel     (bnc#1198031).
    - CVE-2022-1048: Fixed a race Condition in snd_pcm_hw_free leading to use-after-free due to the AB/BA lock     with buffer_mutex and mmap_lock (bsc#1197331).
    - CVE-2022-1055: Fixed a use-after-free in tc_new_tfilter that could allow a local attacker to gain     privilege escalation (bnc#1197702).
    - CVE-2022-27666: Fixed a buffer overflow vulnerability in IPsec ESP transformation code. This flaw     allowed a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a     local privilege escalation (bnc#1197462).
    - CVE-2021-45868: Fixed a wrong validation check in fs/quota/quota_tree.c which could lead to an use-     after-free if there is a corrupted quota file (bnc#1197366).
    - CVE-2022-26966: Fixed an issue in drivers/net/usb/sr9700.c, which allowed attackers to obtain sensitive     information from the memory via crafted frame lengths from a USB device (bsc#1196836).
    - CVE-2021-39698: Fixed a possible memory corruption due to a use after free in aio_poll_complete_work.
    This could lead to local escalation of privilege with no additional execution privileges needed     (bsc#1196956).
    - CVE-2021-0920: Fixed a local privilege escalation due to a use-after-free bug in unix_gc (bsc#1193731).
    -     CVE-2022-23036,CVE-2022-23037,CVE-2022-23038,CVE-2022-23039,CVE-2022-23040,CVE-2022-23041,CVE-2022-23042:
    Fixed multiple issues which could have lead to read/write access to memory pages or denial of service.
    These issues are related to the Xen PV device frontend drivers (bsc#1196488).
    - CVE-2022-26490: Fixed a buffer overflow in the st21nfca driver. An attacker with adjacent NFC access     could trigger crash the system or corrupt system memory (bsc#1196830).
    - CVE-2022-0617: Fixed a null pointer dereference in UDF file system functionality. A local user could     crash the system by triggering udf_file_write_iter() via a malicious UDF image (bsc#1196079).
    - CVE-2022-25375: The RNDIS USB gadget lacks validation of the size of the RNDIS_MSG_SET command.
    Attackers can obtain sensitive information from kernel memory (bsc#1196235).
    - CVE-2022-25258: The USB Gadget subsystem lacked certain validation of interface OS descriptor requests,     which could have lead to memory corruption (bsc#1196096).
    - CVE-2021-44879: In gc_data_segment() in fs/f2fs/gc.c, special files were not considered, which lead to a     move_data_page NULL pointer dereference (bsc#1195987).
    - CVE-2022-24959: Fixed a memory leak in yam_siocdevprivate() in drivers/net/hamradio/yam.c (bsc#1195897).
    - CVE-2022-24958: drivers/usb/gadget/legacy/inode.c mishandled dev->buf release (bsc#1195905).
    - CVE-2022-0516: Fixed missing check in ioctl related to KVM in s390 allows kernel memory read/write     (bsc#1195516).
    - CVE-2022-24448: Fixed an issue in fs/nfs/dir.c. If an application sets the O_DIRECTORY flag, and tries     to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR     should have occured, but the server instead returned uninitialized data in the file descriptor     (bsc#1195612).
    - CVE-2022-0492: Fixed a privilege escalation related to cgroups v1 release_agent feature, which allowed     bypassing namespace isolation unexpectedly (bsc#1195543).
    - CVE-2022-28748: Fixed various information leaks that could be caused by malicious USB devices     (bsc#1196018).
    - CVE-2022-0644: Fixed a denial of service by a local user. A assertion failure could be triggered in     kernel_read_file_from_fd() (bsc#1196155)
    - CVE-2022-0850: Fixed a kernel information leak vulnerability in iov_iter.c (bsc#1196761).
    - CVE-2022-1016: Fixed a vulnerability in the nf_tables component of the netfilter subsystem. This     vulnerability gives an attacker a powerful primitive that can be used to both read from and write to     relative stack data, which can lead to arbitrary code execution (bsc#1197227).



Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Tencent Linux installed on the remote TencentOS Server 2 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2023:0339 advisory.

    Package updates are available for TencentOS Server 2 that fix the following vulnerabilities:

    CVE-2020-27820:
    A vulnerability was found in Linux kernel, where a use-after-frees in nouveau/'s postclose() handler could     happen if removing device (that is not common to remove video card physically without power-off, but same     happens if unbind the driver).

    CVE-2021-0920:
    In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This     could lead to local escalation of privilege with System execution privileges needed. User interaction is     not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References:
    Upstream kernel

    CVE-2021-20321:
    A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users     do rename in specific way with OverlayFS. A local user could use this flaw to crash the system.

    CVE-2021-22543:
    An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass     RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users     with the ability to start and control a VM to read/write random pages of memory and can result in local     privilege escalation.

    CVE-2021-38160:
    ** DISPUTED ** In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss     can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE:
    the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the     length validation was added solely for robustness in the face of anomalous host OS behavior.

    CVE-2021-38199:
    fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which     allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for     those servers to be unreachable during trunking detection.

    CVE-2021-45868:
    In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota     tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a     corrupted quota file.

    CVE-2022-0617:
    A flaw null pointer dereference in the Linux kernel UDF file system functionality was found in the way     user triggers udf_file_write_iter function for the malicious UDF image. A local user could use this flaw     to crash the system. Actual from Linux kernel 4.2-rc1 till 5.17-rc2.

    CVE-2022-0850:
    A vulnerability was found in linux kernel, where an information leak occurs via ext4_extent_header to     userspace.

    CVE-2022-20421:
    In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free.
    This could lead to local escalation of privilege with no additional execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-239630375References: Upstream kernel

    CVE-2022-2196:
    A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution     attacks.L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or     IBPBafter running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code     execution can execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2     or past commit2e7eab81425a

    CVE-2022-2639:
    An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of     actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size()     function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This     flaw allows a local user to crash or potentially escalate their privileges on the system.

    CVE-2022-29581:
    Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to     cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14     and later versions.

    CVE-2022-3567:
    A vulnerability has been found in Linux Kernel and classified as problematic. This vulnerability affects     the function inet6_stream_ops/inet6_dgram_ops of the component IPv6 Handler. The manipulation leads to     race condition. It is recommended to apply a patch to fix this issue. VDB-211090 is the identifier     assigned to this vulnerability.

    CVE-2022-3586:
    A flaw was found in the Linux kernels networking code. A use-after-free was found in the way the     sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (and     freed) into a child qdisc. This flaw allows a local, unprivileged user to crash the system, causing a     denial of service.

    CVE-2022-4129:
    A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing     sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw     to potentially crash the system causing a denial of service.

    CVE-2022-41858:
    A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in     progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to     crash the system or leak internal kernel information.

    CVE-2022-4378:
    A stack overflow flaw was found in the Linux kernel/'s SYSCTL subsystem in how a user changes certain     kernel parameters and variables. This flaw allows a local user to crash or potentially escalate their     privileges on the system.

    CVE-2023-0045:
    The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The     ib_prctl_set function updates the Thread Information Flags (TIFs) for the task and updates the SPEC_CTRL     MSR on the function __speculation_ctrl_update, but the IBPB is only issued on the next schedule, when the     TIF bits are checked. This leaves the victim vulnerable to values already injected on the BTB, prior to     the prctl syscall. The patch that added the support for the conditional mitigation via prctl     (ib_prctl_set) dates back to the kernel 4.9.176.

    We recommend upgrading past commita664ec9158eeddd75121d39c9a0758016097fa96

    CVE-2023-0394:
    A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network     subcomponent in the Linux kernel. This flaw causes the system to crash.

    CVE-2023-1076:
    A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a     type confusion in their initialization function. While it will be often correct, as tuntap devices require     CAP_NET_ADMIN, it may not always be the case, e.g., a non-root user only having that capability. This     would make tun/tap sockets being incorrectly treated in filtering/routing decisions, possibly bypassing     network filters.

    CVE-2023-20938:
    In binder_transaction_buffer_release of binder.c, there is a possible use after free due to improper input     validation. This could lead to local escalation of privilege with no additional execution privileges     needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid     ID: A-257685302References: Upstream kernel

    CVE-2023-2513:
    A use-after-free vulnerability was found in the Linux kernel's ext4 filesystem in the way it handled the     extra inode size for extended attributes. This flaw could allow a privileged local user to cause a system     crash or other undefined behaviors.

    CVE-2023-30456:
    An issue was discovered in arch/x86/kvm/vmx/nested.c in the Linux kernel before 6.2.8. nVMX on x86_64     lacks consistency checks for CR0 and CR4.

    CVE-2023-31436:
    qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write     because lmax can exceed QFQ_MIN_LMAX.

    CVE-2023-32269:
    An issue was discovered in the Linux kernel before 6.1.11. In net/netrom/af_netrom.c, there is a use-     after-free because accept is also allowed for a successfully connected AF_NETROM socket. However, in order     for an attacker to exploit this, the system must have netrom routing configured or the attacker must have     the CAP_NET_ADMIN capability.

    CVE-2023-35001:
    Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nft_byteorder poorly handled vm register     contents when CAP_NET_ADMIN is in any user or network namespace

    CVE-2023-4128:
    A use-after-free flaw was found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in     the Linux Kernel. This flaw allows a local attacker to perform a local privilege escalation due to     incorrect handling of the existing filter, leading to a kernel information leak issue.

    CVE-2022-0847:
    A flaw was found in the way the flags member of the new pipe buffer structure was lacking proper     initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus     contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache     backed by read only files and as such escalate their privileges on the system.

    CVE-2023-2269:
    A denial of service problem was found, due to a possible recursive locking scenario, resulting in a     deadlock in table_clear in drivers/md/dm-ioctl.c in the Linux Kernel Device Mapper-Multipathing sub-     component.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
174228	Ubuntu 16.04 ESM : Linux kernel vulnerabilities (USN-6014-1)	Nessus	Ubuntu Local Security Checks	2023/4/13	2024/8/27	high
204051	Photon OS 3.0: Linux PHSA-2021-3.0-0341	Nessus	PhotonOS Local Security Checks	2024/7/24	2024/7/24	high
159938	SUSE SLES12 Security Update : kernel (SUSE-SU-2022:1267-1)	Nessus	SuSE Local Security Checks	2022/4/20	2023/7/13	high
224406	Linux Distros Unpatched Vulnerability : CVE-2021-45868	Nessus	Misc.	2025/3/5	2025/10/28	medium
165936	EulerOS Virtualization 3.0.6.0 : kernel (EulerOS-SA-2022-2566)	Nessus	Huawei Local Security Checks	2022/10/10	2023/12/7	high
159931	SUSE SLES15 Security Update : kernel (SUSE-SU-2022:1257-1)	Nessus	SuSE Local Security Checks	2022/4/20	2025/9/25	high
175229	EulerOS Virtualization 3.0.2.0 : kernel (EulerOS-SA-2023-1695)	Nessus	Huawei Local Security Checks	2023/5/7	2025/9/26	high
151965	Photon OS 4.0: Linux PHSA-2021-4.0-0065	Nessus	PhotonOS Local Security Checks	2021/7/22	2025/10/16	high
238807	TencentOS Server 2: kernel (TSSA-2023:0339)	Nessus	Tencent Local Security Checks	2025/6/16	2025/11/23	high

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