The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0131-1 advisory.

    The SUSE Linux Enterprise 15 SP3 kernel was updated

    - Unprivileged BPF has been disabled by default to reduce attack surface as too many security issues have     happened in the past (jsc#SLE-22573)       You can reenable via systemctl setting /proc/sys/kernel/unprivileged_bpf_disabled to 0.
    (kernel.unprivileged_bpf_disabled = 0)

    The following security bugs were fixed:

    - CVE-2021-45485: Fixed an information leak because of certain use of a hash table which use IPv6 source     addresses. (bsc#1194094)
    - CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c.
    (bnc#1194087).
    - CVE-2021-4001: Fixed a race condition when the EBPF map is frozen. (bsc#1192990)
    - CVE-2021-28715: Fixed an issue where a guest could force Linux netback driver to hog large amounts of     kernel memory by do not queueing unlimited number of packages.  (bsc#1193442)
    - CVE-2021-28714: Fixed an issue where a guest could force Linux netback driver to hog large amounts of     kernel memory by fixing rx queue stall detection. (bsc#1193442)
    - CVE-2021-28713: Fixed a rogue backends that could cause DoS of guests via high frequency events by     hardening hvc_xen against event channel storms. (bsc#1193440)
    - CVE-2021-28712: Fixed a rogue backends that could cause DoS of guests via high frequency events by     hardening netfront against event channel storms. (bsc#1193440)
    - CVE-2021-28711: Fixed a rogue backends that could cause DoS of guests via high frequency events by     hardening blkfront against event channel storms. (bsc#1193440)
    - CVE-2020-24504: Fixed an uncontrolled resource consumption in some Intel(R) Ethernet E810 Adapter     drivers that may have allowed an authenticated user to potentially enable denial of service via local     access. (bnc#1182404)
    - CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce     a crafted device) to trigger an out-of-bounds write via a crafted length value. (bnc#1192845)
    - CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to     cause a denial of service. (bnc#1192847)
    - CVE-2021-4002: Added a missing TLB flush that could lead to leak or corruption of data in hugetlbfs.
    (bsc#1192946)
    - CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could     happen if removing device. (bnc#1179599)


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

  - 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-2020-27820)

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

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-1988 advisory.

    - netfilter: nf_tables_offload: incorrect flow offload action array size (Florian Westphal) [2056728]     {CVE-2022-25636}
    - RDMA/cma: Do not change route.addr.src_addr.ss_family (Kamal Heib) [2032074] {CVE-2021-4028}
    - x86/speculation: Check CPU capability before applying IBRS spectre v2 mitigation (Waiman Long) [2062156     2062166] {CVE-2022-0001 CVE-2022-0002 CVE-2021-26401}
    - x86/speculation: Warn about eIBRS + LFENCE + Unprivileged eBPF + SMT (Waiman Long) [2062156 2062166]     {CVE-2022-0001 CVE-2022-0002 CVE-2021-26401}
    - x86/speculation: Warn about Spectre v2 LFENCE mitigation (Waiman Long) [2062156 2062166] {CVE-2022-0001     CVE-2022-0002 CVE-2021-26401}
    - x86/speculation: Update link to AMD speculation whitepaper (Waiman Long) [2062166] {CVE-2021-26401}
    - x86/speculation: Use generic retpoline by default on AMD (Waiman Long) [2062166] {CVE-2021-26401}
    - x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting (Waiman Long)     [2062156] {CVE-2022-0001 CVE-2022-0002}
    - Documentation/hw-vuln: Update spectre doc (Waiman Long) [2062156] {CVE-2022-0001 CVE-2022-0002}
    - x86/speculation: Add eIBRS + Retpoline options (Waiman Long) [2062156] {CVE-2022-0001 CVE-2022-0002}
    - x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE (Waiman Long) [2062156] {CVE-2022-0001     CVE-2022-0002}
    - x86,bugs: Unconditionally allow spectre_v2=retpoline,amd (Waiman Long) [2062156] {CVE-2022-0001     CVE-2022-0002}
    - x86: deduplicate the spectre_v2_user documentation (Waiman Long) [2062156] {CVE-2022-0001 CVE-2022-0002}
    - fuse: fix pipe buffer lifetime for direct_io (Miklos Szeredi) [2064863] {CVE-2022-1011}
    - tipc: improve size validations for received domain records (Xin Long) [2048971] {CVE-2022-0435}

Tenable has extracted the preceding description block directly from the Oracle 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.

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.

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5415-1 advisory.

    Jeremy Cline discovered a use-after-free in the nouveau graphics driver of the Linux kernel during device     removal. A privileged or physically proximate attacker could use this to cause a denial of service (system     crash). (CVE-2020-27820)

    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)

    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 MMC/SD subsystem in the Linux kernel did not properly handle read errors from     SD cards in certain situations. An attacker could possibly use this to expose sensitive information     (kernel memory). (CVE-2022-20008)

    It was discovered that the USB gadget subsystem in the Linux kernel did not properly validate interface     descriptor requests. An attacker could possibly use this to cause a denial of service (system crash).
    (CVE-2022-25258)

    It was discovered that the Remote NDIS (RNDIS) USB gadget implementation in the Linux kernel did not     properly validate the size of the RNDIS_MSG_SET command. An attacker could possibly use this to expose     sensitive information (kernel memory). (CVE-2022-25375)

    It was discovered that the ST21NFCA NFC driver in the Linux kernel did not properly validate the size of     certain data in EVT_TRANSACTION events. A physically proximate attacker could use this to cause a denial     of service (system crash) or possibly execute arbitrary code. (CVE-2022-26490)

    It was discovered that the Xilinx USB2 device gadget driver in the Linux kernel did not properly validate     endpoint indices from the host. A physically proximate attacker could possibly use this to cause a denial     of service (system crash). (CVE-2022-27223)

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.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0366-1 advisory.

  - The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an     instruction sequence where inner instructions require substantial expansions into multiple BPF     instructions, leading to an overflow. This affects kernel/bpf/core.c and net/core/filter.c.
    (CVE-2018-25020)

  - An issue was discovered on Broadcom Wi-Fi client devices. Specifically timed and handcrafted traffic can     cause internal errors (related to state transitions) in a WLAN device that lead to improper layer 2 Wi-Fi     encryption with a consequent possibility of information disclosure over the air for a discrete set of     traffic, a different vulnerability than CVE-2019-9500, CVE-2019-9501, CVE-2019-9502, and CVE-2019-9503.
    (CVE-2019-15126)

  - 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-2020-27820)

  - 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 ip6_xmit of ip6_output.c, there is a possible out of bounds write 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-168607263References:
    Upstream kernel (CVE-2021-0935)

  - Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to     multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the     ability to run PV backends in regular unprivileged guests, typically referred to as driver domains.
    Running PV backends in driver domains has one primary security advantage: if a driver domain gets     compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain     could try to attack other guests via sending events at a high frequency leading to a Denial of Service in     the guest due to trying to service interrupts for elongated amounts of time. There are three affected     backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch     3, CVE-2021-28713 (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)

  - Guest can force Linux netback driver to hog large amounts of kernel memory T[his CNA information record     relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]     Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is     ready to process them. There are some measures taken for avoiding to pile up too much data, but those can     be bypassed by the guest: There is a timeout how long the client side of an interface can stop consuming     new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default).
    Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time.
    (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in     its RX queue ring page and the next package would require more than one free slot, which may be the case     when using GSO, XDP, or software hashing. (CVE-2021-28714) (CVE-2021-28714, CVE-2021-28715)

  - 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)

  - A flaw double-free memory corruption in the Linux kernel HCI device initialization subsystem was found in     the way user attach malicious HCI TTY Bluetooth device. A local user could use this flaw to crash the     system. This flaw affects all the Linux kernel versions starting from 3.13. (CVE-2021-3564)

  - In gadget_dev_desc_UDC_show of configfs.c, there is a possible disclosure of kernel heap memory due to a     race condition. This could lead to local information disclosure with System execution privileges needed.
    User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-160822094References: Upstream kernel (CVE-2021-39648)

  - In ufshcd_eh_device_reset_handler of ufshcd.c, there is a possible out of bounds read due to a missing     bounds check. This could lead to local information disclosure with System execution privileges needed.
    User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-194696049References: Upstream kernel (CVE-2021-39657)

  - 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 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 on the system.
    This flaw affects Linux kernel versions prior to 5.16-rc4. (CVE-2021-4083)

  - A memory leak vulnerability was found 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)

  - A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an     improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of     service (DOS) due to a deadlock problem. (CVE-2021-4149)

  - An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces     subsystem was found in the way users have access to some less privileged process that are controlled by     cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of     control groups. A local user could use this flaw to crash the system or escalate their privileges on the     system. (CVE-2021-4197)

  - A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in     the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem     while the device is getting removed, leading to a privilege escalation problem. (CVE-2021-4202)

  - In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in     drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a     crafted device) to trigger an out-of-bounds write via a crafted length value. (CVE-2021-43975)

  - In the Linux kernel through 5.15.2, mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c allows     an attacker (who can connect a crafted USB device) to cause a denial of service (skb_over_panic).
    (CVE-2021-43976)

  - 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)

  - pep_sock_accept in net/phonet/pep.c in the Linux kernel through 5.15.8 has a refcount leak.
    (CVE-2021-45095)

  - 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)

  - A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network     protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more     buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS). (CVE-2022-0322)

  - A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the     way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or     escalate their privileges on the system. (CVE-2022-0330)

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

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

  - 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-2020-27820)

  - 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-2021-22543)

  - Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to     multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the     ability to run PV backends in regular unprivileged guests, typically referred to as 'driver domains'.
    Running PV backends in driver domains has one primary security advantage: if a driver domain gets     compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain     could try to attack other guests via sending events at a high frequency leading to a Denial of Service in     the guest due to trying to service interrupts for elongated amounts of time. There are three affected     backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch     3, CVE-2021-28713 (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)

  - An issue was discovered in the Linux kernel before 5.11.7. usbip_sockfd_store in     drivers/usb/usbip/stub_dev.c allows attackers to cause a denial of service (GPF) because the stub-up     sequence has race conditions during an update of the local and shared status, aka CID-9380afd6df70.
    (CVE-2021-29265)

  - An Out-of-Bounds Read was discovered in arch/arm/mach-footbridge/personal-pci.c in the Linux kernel     through 5.12.11 because of the lack of a check for a value that shouldn't be negative, e.g., access to     element -2 of an array, aka CID-298a58e165e4. (CVE-2021-32078)

  - 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 various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an     incorrect flag check. 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-210292376References: Upstream kernel (CVE-2021-39685)

  - An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces     subsystem was found in the way users have access to some less privileged process that are controlled by     cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of     control groups. A local user could use this flaw to crash the system or escalate their privileges on the     system. (CVE-2021-4197)

  - A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and     SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a     user privileges may crash the system or leak internal kernel information. (CVE-2021-4203)

  - 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)

  - A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network     protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more     buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS). (CVE-2022-0322)

  - A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the     way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or     escalate their privileges on the system. (CVE-2022-0330)

  - A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends     a packet with malicious content where the number of domain member nodes is higher than the 64 allowed.
    This flaw allows a remote user to crash the system or possibly escalate their privileges if they have     access to the TIPC network. (CVE-2022-0435)

  - A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove in drivers/memstick/host/rtsx_usb_ms.c     in memstick in the Linux kernel. In this flaw, a local attacker with a user privilege may impact system     Confidentiality. This flaw affects kernel versions prior to 5.14 rc1. (CVE-2022-0487)

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.

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

  - 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-2020-27820)

  - 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-2021-22543)

  - Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to     multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the     ability to run PV backends in regular unprivileged guests, typically referred to as 'driver domains'.
    Running PV backends in driver domains has one primary security advantage: if a driver domain gets     compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain     could try to attack other guests via sending events at a high frequency leading to a Denial of Service in     the guest due to trying to service interrupts for elongated amounts of time. There are three affected     backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch     3, CVE-2021-28713 (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)

  - An issue was discovered in the Linux kernel before 5.11.7. usbip_sockfd_store in     drivers/usb/usbip/stub_dev.c allows attackers to cause a denial of service (GPF) because the stub-up     sequence has race conditions during an update of the local and shared status, aka CID-9380afd6df70.
    (CVE-2021-29265)

  - An Out-of-Bounds Read was discovered in arch/arm/mach-footbridge/personal-pci.c in the Linux kernel     through 5.12.11 because of the lack of a check for a value that shouldn't be negative, e.g., access to     element -2 of an array, aka CID-298a58e165e4. (CVE-2021-32078)

  - 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 various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an     incorrect flag check. 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-210292376References: Upstream kernel (CVE-2021-39685)

  - An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces     subsystem was found in the way users have access to some less privileged process that are controlled by     cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of     control groups. A local user could use this flaw to crash the system or escalate their privileges on the     system. (CVE-2021-4197)

  - A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and     SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a     user privileges may crash the system or leak internal kernel information. (CVE-2021-4203)

  - 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)

  - A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network     protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more     buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS). (CVE-2022-0322)

  - A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the     way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or     escalate their privileges on the system. (CVE-2022-0330)

  - A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends     a packet with malicious content where the number of domain member nodes is higher than the 64 allowed.
    This flaw allows a remote user to crash the system or possibly escalate their privileges if they have     access to the TIPC network. (CVE-2022-0435)

  - A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove in drivers/memstick/host/rtsx_usb_ms.c     in memstick in the Linux kernel. In this flaw, a local attacker with a user privilege may impact system     Confidentiality. This flaw affects kernel versions prior to 5.14 rc1. (CVE-2022-0487)

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 Ubuntu 16.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5413-1 advisory.

    Jeremy Cline discovered a use-after-free in the nouveau graphics driver of the Linux kernel during device     removal. A privileged or physically proximate attacker could use this to cause a denial of service (system     crash). (CVE-2020-27820)

    It was discovered that a race condition existed in the network scheduling subsystem of 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-2021-39713)

    It was discovered that the Parallel NFS (pNFS) implementation in the Linux kernel did not properly perform     bounds checking in some situations. An attacker could use this to cause a denial of service (system crash)     or possibly execute arbitrary code. (CVE-2021-4157)

    It was discovered that the ST21NFCA NFC driver in the Linux kernel did not properly validate the size of     certain data in EVT_TRANSACTION events. A physically proximate attacker could use this to cause a denial     of service (system crash) or possibly execute arbitrary code. (CVE-2022-26490)

    It was discovered that the Xilinx USB2 device gadget driver in the Linux kernel did not properly validate     endpoint indices from the host. A physically proximate attacker could possibly use this to cause a denial     of service (system crash). (CVE-2022-27223)

    It was discovered that the EMS CAN/USB interface implementation in the Linux kernel contained a double-     free vulnerability when handling certain error conditions. A local attacker could use this to cause a     denial of service (memory exhaustion). (CVE-2022-28390)

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.

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2023:0340 advisory.

    Package updates are available for TencentOS Server 3 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-2023-20938:
    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
156883	SUSE SLED15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2022:0131-1)	Nessus	SuSE Local Security Checks	2022/1/20	2026/6/26	high
223476	Linux Distros Unpatched Vulnerability : CVE-2020-27820	Nessus	Misc.	2025/3/4	2026/7/17	medium
161305	Oracle Linux 8 : kernel (ELSA-2022-1988)	Nessus	Oracle Linux Local Security Checks	2022/5/18	2026/2/9	critical
238807	TencentOS Server 2: kernel (TSSA-2023:0339)	Nessus	Tencent Local Security Checks	2025/6/16	2025/11/23	high
161063	Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-5415-1)	Nessus	Ubuntu Local Security Checks	2022/5/12	2026/6/3	high
157894	SUSE SLES15 Security Update : kernel (SUSE-SU-2022:0366-1)	Nessus	SuSE Local Security Checks	2022/2/11	2023/7/13	high
159811	EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1450)	Nessus	Huawei Local Security Checks	2022/4/18	2023/11/1	high
160581	EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2022-1630)	Nessus	Huawei Local Security Checks	2022/5/5	2023/10/31	high
161061	Ubuntu 16.04 ESM : Linux kernel vulnerabilities (USN-5413-1)	Nessus	Ubuntu Local Security Checks	2022/5/12	2024/8/27	high
292383	MiracleLinux 7 : kernel-3.10.0-1160.119.1.0.1.el7.AXS7 (AXSA:2024-8651:24)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	high
276356	TencentOS Server 3: kernel (TSSA-2023:0340)	Nessus	Tencent Local Security Checks	2025/11/20	2026/3/10	high

检测

插件搜索

high

medium

critical

high

high

high

high

high

high

high

high