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, the following vulnerability has been resolved: binder: fix use-after-free in     shinker's callback The mmap read lock is used during the shrinker's callback, which means that using     alloc->vma pointer isn't safe as it can race with munmap(). As of commit dd2283f2605e (mm: mmap: zap     pages with read mmap_sem in munmap) the mmap lock is downgraded after the vma has been isolated. I was     able to reproduce this issue by manually adding some delays and triggering page reclaiming through the     shrinker's debug sysfs. The following KASAN report confirms the UAF:
    ================================================================== BUG: KASAN: slab-use-after-free in     zap_page_range_single+0x470/0x4b8 Read of size 8 at addr ffff356ed50e50f0 by task bash/478 CPU: 1 PID: 478     Comm: bash Not tainted 6.6.0-rc5-00055-g1c8b86a3799f-dirty #70 Hardware name: linux,dummy-virt (DT) Call     trace: zap_page_range_single+0x470/0x4b8 binder_alloc_free_page+0x608/0xadc
    __list_lru_walk_one+0x130/0x3b0 list_lru_walk_node+0xc4/0x22c binder_shrink_scan+0x108/0x1dc     shrinker_debugfs_scan_write+0x2b4/0x500 full_proxy_write+0xd4/0x140 vfs_write+0x1ac/0x758     ksys_write+0xf0/0x1dc __arm64_sys_write+0x6c/0x9c Allocated by task 492: kmem_cache_alloc+0x130/0x368     vm_area_alloc+0x2c/0x190 mmap_region+0x258/0x18bc do_mmap+0x694/0xa60 vm_mmap_pgoff+0x170/0x29c     ksys_mmap_pgoff+0x290/0x3a0 __arm64_sys_mmap+0xcc/0x144 Freed by task 491: kmem_cache_free+0x17c/0x3c8     vm_area_free_rcu_cb+0x74/0x98 rcu_core+0xa38/0x26d4 rcu_core_si+0x10/0x1c __do_softirq+0x2fc/0xd24 Last     potentially related work creation: __call_rcu_common.constprop.0+0x6c/0xba0 call_rcu+0x10/0x1c     vm_area_free+0x18/0x24 remove_vma+0xe4/0x118 do_vmi_align_munmap.isra.0+0x718/0xb5c     do_vmi_munmap+0xdc/0x1fc __vm_munmap+0x10c/0x278 __arm64_sys_munmap+0x58/0x7c Fix this issue by performing     instead a vma_lookup() which will fail to find the vma that was isolated before the mmap lock downgrade.
    Note that this option has better performance than upgrading to a mmap write lock which would increase     contention. Plus, mmap_write_trylock() has been recently removed anyway. (CVE-2023-52438)

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

An update of the linux package has been released.

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

    In the Linux kernel, the following vulnerability has been resolved: ipv4, ipv6: Fix handling of     transhdrlen in __ip{,6}_append_data() Including the transhdrlen in length is a problem when the packet is     partially filled (e.g. something like send(MSG_MORE) happened previously) when appending to an IPv4 or     IPv6 packet as we don't want to repeat the transport header or account for it twice. This can happen under     some circumstances, such as splicing into an L2TP socket. The symptom observed is a warning in
    __ip6_append_data(): WARNING: CPU: 1 PID: 5042 at net/ipv6/ip6_output.c:1800
    __ip6_append_data.isra.0+0x1be8/0x47f0 net/ipv6/ip6_output.c:1800 that occurs when MSG_SPLICE_PAGES is     used to append more data to an already partially occupied skbuff. The warning occurs when 'copy' is larger     than the amount of data in the message iterator. This is because the requested length includes the     transport header length when it shouldn't. This can be triggered by, for example: sfd = socket(AF_INET6,     SOCK_DGRAM, IPPROTO_L2TP); bind(sfd, ...); // ::1 connect(sfd, ...); // ::1 port 7 send(sfd, buffer, 4100,     MSG_MORE); sendfile(sfd, dfd, NULL, 1024); Fix this by only adding transhdrlen into the length if the     write queue is empty in l2tp_ip6_sendmsg(), analogously to how UDP does things. l2tp_ip_sendmsg() looks     like it won't suffer from this problem as it builds the UDP packet itself.(CVE-2023-52527)

    In the Linux kernel, the following vulnerability has been resolved: binder: fix use-after-free in     shinker's callback The mmap read lock is used during the shrinker's callback, which means that using     alloc-vma pointer isn't safe as it can race with munmap(). As of commit dd2283f2605e ('mm: mmap: zap     pages with read mmap_sem in munmap') the mmap lock is downgraded after the vma has been isolated. I was     able to reproduce this issue by manually adding some delays and triggering page reclaiming through the     shrinker's debug sysfs.(CVE-2023-52438)

    A flaw in the routing table size was found in the ICMPv6 handling of  Packet Too Big . The size of the     routing table is regulated by periodic garbage collection. However, with  Packet Too Big Messages  it is     possible to exceed the routing table size and garbage collector threshold. A user located in the local     network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6     connections up to 95%.(CVE-2023-52340)

    A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation.The nft_verdict_init() function allows positive values as drop error     within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when     NF_DROP is issued with a drop error which resembles NF_ACCEPT.(CVE-2024-1086)

    A null pointer dereference flaw was found in the hugetlbfs_fill_super function in the Linux kernel     hugetlbfs (HugeTLB pages) functionality. This issue may allow a local user to crash the system or     potentially escalate their privileges on the system.(CVE-2024-0841)

    In the Linux kernel before 6.4.5, drivers/gpu/drm/drm_atomic.c has a use-after-free during a race     condition between a nonblocking atomic commit and a driver unload.(CVE-2023-51043)

    A flaw was found in the Netfilter subsystem in the Linux kernel. The issue is in the nft_byteorder_eval()     function, where the code iterates through a loop and writes to the `dst` array. On each iteration, 8 bytes     are written, but `dst` is an array of u32, so each element only has space for 4 bytes. That means every     iteration overwrites part of the previous element corrupting this array of u32. This flaw allows a local     user to cause a denial of service or potentially break NetFilter functionality.(CVE-2024-0607)

    A denial of service vulnerability due to a deadlock was found in sctp_auto_asconf_init in     net/sctp/socket.c in the Linux kernels SCTP subsystem. This flaw allows guests with local user     privileges to trigger a deadlock and potentially crash the system.(CVE-2024-0639)

    A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may     allow an attacker using this library to cause a denial of service problem due to a missing check at a     function return.(CVE-2023-6915)

    Integer Overflow or Wraparound vulnerability in openEuler kernel on Linux (filesystem modules) allows     Forced Integer Overflow.This issue affects openEuler kernel: from 4.19.90 before 4.19.90-2401.3, from     5.10.0-60.18.0 before 5.10.0-183.0.0.(CVE-2021-33631)

    A denial of service vulnerability was found in tipc_crypto_key_revoke in net/tipc/crypto.c in the Linux     kernels TIPC subsystem. This flaw allows guests with local user privileges to trigger a deadlock and     potentially crash the system.(CVE-2024-0641)

    A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's     deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued     on.(CVE-2023-6531)

    An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4     (netfilter: nf_tables: Reject tables of unsupported family); While creating a new netfilter table, lack of     a safeguard against invalid nf_tables family (pf) values within `nf_tables_newtable` function enables an     attacker to achieve out-of-bounds access.(CVE-2023-6040)

    An out-of-bounds memory read flaw was found in receive_encrypted_standard in fs/smb/client/smb2ops.c in     the SMB Client sub-component in the Linux Kernel. This issue occurs due to integer underflow on the memcpy     length, leading to a denial of service.(CVE-2024-0565)

    An issue was discovered in drivers/input/input.c in the Linux kernel before 5.17.10. An attacker can cause     a denial of service (panic) because input_set_capability mishandles the situation in which an event code     falls outside of a bitmap.(CVE-2022-48619)

    A vulnerability was found in vhost_new_msg in drivers/vhost/vhost.c in the Linux kernel, which does not     properly initialize memory in messages passed between virtual guests and the host operating system in the     vhost/vhost.c:vhost_new_msg() function. This issue can allow local privileged users to read some kernel     memory contents when reading from the /dev/vhost-net device file.(CVE-2024-0340)

    A memory leak problem was found in ctnetlink_create_conntrack in net/netfilter/nf_conntrack_netlink.c in     the Linux Kernel. This issue may allow a local attacker with CAP_NET_ADMIN privileges to cause a denial of     service (DoS) attack due to a refcount overflow.(CVE-2023-7192)

    A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is     garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a     use-after-free issue on an NFT_CHAIN object or NFT_OBJECT object, allowing a local unprivileged user with     CAP_NET_ADMIN capability to escalate their privileges on the system.(CVE-2024-0193)

    An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This flaw     allows a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that     results in kmalloc data to be printed (and potentially leaked) to the kernel ring buffer     (dmesg).(CVE-2023-6121)

    An out-of-bounds read vulnerability was found in smbCalcSize in fs/smb/client/netmisc.c in the Linux     Kernel. This issue could allow a local attacker to crash the system or leak internal kernel     information.(CVE-2023-6606)

    A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be     exploited to achieve local privilege escalation.A perf_event's read_size can overflow, leading to an heap     out-of-bounds increment or write in perf_read_group().(CVE-2023-6931)

Tenable has extracted the preceding description block directly from the EulerOS kernel 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 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6725-1 advisory.

    Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate     certain data structure fields when parsing lease contexts, leading to an out-of-bounds read vulnerability.
    A remote attacker could use this to cause a denial of service (system crash) or possibly expose sensitive     information. (CVE-2023-1194)

    Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel,     leading to a use-after-free vulnerability. A remote attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2023-32254)

    It was discovered that a race condition existed in the KSMBD implementation in the Linux kernel when     handling session connections, leading to a use- after-free vulnerability. A remote attacker could use this     to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-32258)

    It was discovered that the KSMBD implementation in the Linux kernel did not properly validate buffer sizes     in certain operations, leading to an integer underflow and out-of-bounds read vulnerability. A remote     attacker could use this to cause a denial of service (system crash) or possibly expose sensitive     information. (CVE-2023-38427)

    Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate SMB     request protocol IDs, leading to a out-of- bounds read vulnerability. A remote attacker could possibly use     this to cause a denial of service (system crash). (CVE-2023-38430)

    Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate     packet header sizes in certain situations, leading to an out-of-bounds read vulnerability. A remote     attacker could use this to cause a denial of service (system crash) or possibly expose sensitive     information. (CVE-2023-38431)

    It was discovered that the KSMBD implementation in the Linux kernel did not properly handle session setup     requests, leading to an out-of-bounds read vulnerability. A remote attacker could use this to expose     sensitive information. (CVE-2023-3867)

    Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly     handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a     guest VM could possibly use this to cause a denial of service (host domain crash). (CVE-2023-46838)

    It was discovered that the IPv6 implementation of the Linux kernel did not properly manage route cache     memory usage. A remote attacker could use this to cause a denial of service (memory exhaustion).
    (CVE-2023-52340)

    It was discovered that the device mapper driver in the Linux kernel did not properly validate target size     during certain memory allocations. A local attacker could use this to cause a denial of service (system     crash). (CVE-2023-52429, CVE-2024-23851)

    Yang Chaoming discovered that the KSMBD implementation in the Linux kernel did not properly validate     request buffer sizes, leading to an out-of-bounds read vulnerability. An attacker could use this to cause     a denial of service (system crash) or possibly expose sensitive information. (CVE-2024-22705)

    Chenyuan Yang discovered that the btrfs file system in the Linux kernel did not properly handle read     operations on newly created subvolumes in certain conditions. A local attacker could use this to cause a     denial of service (system crash). (CVE-2024-23850)

    It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel, leading to     a null pointer dereference vulnerability. A privileged local attacker could use this to possibly cause a     denial of service (system crash). (CVE-2024-24860)

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to     compromise the system. This update corrects flaws in the following subsystems:

    - Architecture specifics;

    - Block layer;

    - Cryptographic API;

    - Android drivers;

    - EDAC drivers;

    - GPU drivers;

    - Media drivers;

    - Multifunction device drivers;

    - MTD block device drivers;

    - Network drivers;

    - NVME drivers;

    - TTY drivers;

    - Userspace I/O drivers;

    - EFI Variable file system;

    - F2FS file system;

    - GFS2 file system;

    - SMB network file system;

    - BPF subsystem;

    - IPv6 Networking;

    - Network Traffic Control;

    - AppArmor security module; (CVE-2023-52463, CVE-2023-52445, CVE-2023-52462, CVE-2023-52609,     CVE-2023-52448, CVE-2023-52457, CVE-2023-52464, CVE-2023-52456, CVE-2023-52454, CVE-2023-52438,     CVE-2023-52480, CVE-2023-52443, CVE-2023-52442, CVE-2024-26631, CVE-2023-52439, CVE-2023-52612,     CVE-2024-26598, CVE-2024-26586, CVE-2024-26589, CVE-2023-52444, CVE-2023-52436, CVE-2024-26633,     CVE-2024-26597, CVE-2023-52458, CVE-2024-26591, CVE-2023-52449, CVE-2023-52467, CVE-2023-52441,     CVE-2023-52610, CVE-2023-52451, CVE-2023-52469, CVE-2023-52470)

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 Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6725-2 advisory.

    Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate     certain data structure fields when parsing lease contexts, leading to an out-of-bounds read vulnerability.
    A remote attacker could use this to cause a denial of service (system crash) or possibly expose sensitive     information. (CVE-2023-1194)

    Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel,     leading to a use-after-free vulnerability. A remote attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2023-32254)

    It was discovered that a race condition existed in the KSMBD implementation in the Linux kernel when     handling session connections, leading to a use- after-free vulnerability. A remote attacker could use this     to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-32258)

    It was discovered that the KSMBD implementation in the Linux kernel did not properly validate buffer sizes     in certain operations, leading to an integer underflow and out-of-bounds read vulnerability. A remote     attacker could use this to cause a denial of service (system crash) or possibly expose sensitive     information. (CVE-2023-38427)

    Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate SMB     request protocol IDs, leading to a out-of- bounds read vulnerability. A remote attacker could possibly use     this to cause a denial of service (system crash). (CVE-2023-38430)

    Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate     packet header sizes in certain situations, leading to an out-of-bounds read vulnerability. A remote     attacker could use this to cause a denial of service (system crash) or possibly expose sensitive     information. (CVE-2023-38431)

    It was discovered that the KSMBD implementation in the Linux kernel did not properly handle session setup     requests, leading to an out-of-bounds read vulnerability. A remote attacker could use this to expose     sensitive information. (CVE-2023-3867)

    Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly     handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a     guest VM could possibly use this to cause a denial of service (host domain crash). (CVE-2023-46838)

    It was discovered that the IPv6 implementation of the Linux kernel did not properly manage route cache     memory usage. A remote attacker could use this to cause a denial of service (memory exhaustion).
    (CVE-2023-52340)

    It was discovered that the device mapper driver in the Linux kernel did not properly validate target size     during certain memory allocations. A local attacker could use this to cause a denial of service (system     crash). (CVE-2023-52429, CVE-2024-23851)

    Yang Chaoming discovered that the KSMBD implementation in the Linux kernel did not properly validate     request buffer sizes, leading to an out-of-bounds read vulnerability. An attacker could use this to cause     a denial of service (system crash) or possibly expose sensitive information. (CVE-2024-22705)

    Chenyuan Yang discovered that the btrfs file system in the Linux kernel did not properly handle read     operations on newly created subvolumes in certain conditions. A local attacker could use this to cause a     denial of service (system crash). (CVE-2024-23850)

    It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel, leading to     a null pointer dereference vulnerability. A privileged local attacker could use this to possibly cause a     denial of service (system crash). (CVE-2024-24860)

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to     compromise the system. This update corrects flaws in the following subsystems:

    - Architecture specifics;

    - Block layer;

    - Cryptographic API;

    - Android drivers;

    - EDAC drivers;

    - GPU drivers;

    - Media drivers;

    - Multifunction device drivers;

    - MTD block device drivers;

    - Network drivers;

    - NVME drivers;

    - TTY drivers;

    - Userspace I/O drivers;

    - EFI Variable file system;

    - F2FS file system;

    - GFS2 file system;

    - SMB network file system;

    - BPF subsystem;

    - IPv6 Networking;

    - Network Traffic Control;

    - AppArmor security module; (CVE-2023-52463, CVE-2023-52445, CVE-2023-52462, CVE-2023-52609,     CVE-2023-52448, CVE-2023-52457, CVE-2023-52464, CVE-2023-52456, CVE-2023-52454, CVE-2023-52438,     CVE-2023-52480, CVE-2023-52443, CVE-2023-52442, CVE-2024-26631, CVE-2023-52439, CVE-2023-52612,     CVE-2024-26598, CVE-2024-26586, CVE-2024-26589, CVE-2023-52444, CVE-2023-52436, CVE-2024-26633,     CVE-2024-26597, CVE-2023-52458, CVE-2024-26591, CVE-2023-52449, CVE-2023-52467, CVE-2023-52441,     CVE-2023-52610, CVE-2023-52451, CVE-2023-52469, CVE-2023-52470)

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
246257	Linux Distros Unpatched Vulnerability : CVE-2023-52438	Nessus	Misc.	2025/8/8	2026/7/17	high
204220	Photon OS 5.0: Linux PHSA-2024-5.0-0198	Nessus	PhotonOS Local Security Checks	2024/7/24	2026/7/21	high
198192	EulerOS 2.0 SP12 : kernel (EulerOS-SA-2024-1764)	Nessus	Huawei Local Security Checks	2024/5/30	2024/6/4	high
198105	EulerOS Virtualization 2.11.0 : kernel (EulerOS-SA-2024-1735)	Nessus	Huawei Local Security Checks	2024/5/29	2025/9/26	high
198320	EulerOS 2.0 SP11 : kernel (EulerOS-SA-2024-1800)	Nessus	Huawei Local Security Checks	2024/6/3	2025/9/26	high
193084	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6725-1)	Nessus	Ubuntu Local Security Checks	2024/4/9	2026/6/3	critical
193375	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel (AWS) vulnerabilities (USN-6725-2)	Nessus	Ubuntu Local Security Checks	2024/4/17	2024/8/27	critical

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