Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - Linux 内核的 io_uring 子系统中存在释放后使用漏洞，攻击者可利用此漏洞实现本地特权提升。io_uring 取消轮询请求与链接的超时争用可导致 hrtimer 中发生 UAF。我们建议升级过去的提交 ef7dfac51d8ed961b742218f526bd589f3900a59（5.10 稳定版为 4716c73b188566865bdd79c3a6709696a224ac04，5.15 稳定版为 0e388fce7aec40992eadee654193cad345d62663）。(CVE-2023-3389)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

远程 Ubuntu 22.04 LTS 主机上安装的一个程序包受到 USN-6248-1 公告中提及的多个漏洞影响。

  - 在 6.1.6 之前的 Linux 内核中，流量控制子系统中有一个空指针取消引用缺陷，允许非特权用户通过使用 tc qdisc 和 tc class 命令设置的构建的流量控制配置触发拒绝服务（系统崩溃）。这会影响 net/sched/sch_api.c 中的 qdisc_graft。(CVE-2022-47929)

  - adreno_gpu.c 的 adreno_set_param 中存在双重释放问题，可能造成内存损坏。这可能会导致本地权限提升，且无需其他执行权限。无需用户交互即可利用漏洞。产品：Android 版本：Android 内核 Android ID：
    A-265016072References：上游内核 (CVE-2023-21106)

  - 在同时搭载 c914c0e27eb0 和 UBUNTU 的 Ubuntu 内核上：SAUCE: overlayfs: 跳过对 trusted.overlayfs.* xattrs 的权限检查，非特权用户可在挂载的文件上设置特权扩展属性，导致未经适当的安全检查便可以在上层文件上设置这些属性。(CVE-2023-2640)

  - Linux 内核 nftables 释放后使用本地特权提升漏洞；“nft_chain_lookup_byid()”未能检查链是否处于活动状态，以及 CAP_NET_ADMIN 是否位于任何用户或网络命名空间中 (CVE-2023-31248)

  - 在 Ubuntu 内核上调用 ovl_do_setxattr 时，Ubuntu 内核 overlayfs ovl_copy_up_meta_inode_data 中的本地权限升级漏洞会导致跳过权限检查 (CVE-2023-32629)

  - Linux 内核的 io_uring 子系统中存在释放后使用漏洞，攻击者可利用此漏洞实现本地特权提升。io_uring 取消轮询请求与链接的超时争用可导致 hrtimer 中发生 UAF。我们建议升级过去的提交 ef7dfac51d8ed961b742218f526bd589f3900a59（5.10 稳定版为 4716c73b188566865bdd79c3a6709696a224ac04，5.15 稳定版为 0e388fce7aec40992eadee654193cad345d62663）。(CVE-2023-3389)

  - Linux 内核 nftables 越界读取/写入漏洞；当 CAP_NET_ADMIN 位于任何用户或网络命名空间时，nft_byteorder 未妥善处理 vm 寄存器内容 (CVE-2023-35001)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

远程 20.04 LTS / 22.04 LTS 主机上安装的程序包受到 USN-6246-1 公告中提及的多个漏洞的影响。

  - 可以利用 Linux 内核 ipvlan 网络驱动程序中的堆越界写入漏洞实现本地特权提升。出现越界写入的原因是 ipvlan 网络驱动程序中缺少 skb->cb 初始化。如果启用了 CONFIG_IPVLAN，则可利用此漏洞。我们建议升级过去的提交 90cbed5247439a966b645b34eb0a2e037836ea8e。(CVE-2023-3090)

  - Linux 内核 nftables 释放后使用本地特权提升漏洞；“nft_chain_lookup_byid()”未能检查链是否处于活动状态，以及 CAP_NET_ADMIN 是否位于任何用户或网络命名空间中 (CVE-2023-31248)

  - Linux 内核的 io_uring 子系统中存在释放后使用漏洞，攻击者可利用此漏洞实现本地特权提升。io_uring 取消轮询请求与链接的超时争用可导致 hrtimer 中发生 UAF。我们建议升级过去的提交 ef7dfac51d8ed961b742218f526bd589f3900a59（5.10 稳定版为 4716c73b188566865bdd79c3a6709696a224ac04，5.15 稳定版为 0e388fce7aec40992eadee654193cad345d62663）。(CVE-2023-3389)

  - 在 Linux 内核的 Netfilter 子系统中发现 net/netfilter/nf_tables_api.c 存在释放后使用漏洞。若未能通过 NFT_MSG_NEWRULE 正确处理错误，这有可能导致在同一事务中使用悬摆指针，从而造成释放后使用漏洞。具有用户访问权限的本地攻击者可利用此缺陷造成特权提升问题。我们建议升级过去的提交 1240eb93f0616b21c675416516ff3d74798fdc97。(CVE-2023-3390)

  - 在 Linux 内核的 MCTP 协议中发现一个缺陷。mctp_unregister() 函数会在 netcard 分离时回收设备的相关资源。但是，正在运行的例程可能未意识到这一点，因而会造成 mdev->addrs 对象释放后使用，进而可能导致拒绝服务。
    (CVE-2023-3439)

  - Linux 内核 nftables 越界读取/写入漏洞；当 CAP_NET_ADMIN 位于任何用户或网络命名空间时，nft_byteorder 未妥善处理 vm 寄存器内容 (CVE-2023-35001)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

The version of kernel installed on the remote host is prior to 5.10.186-179.751. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2023-038 advisory.

    2024-07-03: CVE-2023-3389 was added to this advisory.

    2023-08-31: CVE-2023-20569 was added to this advisory.

    A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address     prediction. This may result in speculative execution at an attacker-controlled?address, potentially     leading to information disclosure. (CVE-2023-20569)

    A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local     privilege escalation.

    Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer.

    We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59     (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for     5.15 stable). (CVE-2023-3389)

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to     achieve local privilege escalation.

    If tcf_change_indev() fails, u32_set_parms() will immediately return an error after incrementing or     decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter     and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.

    We recommend upgrading past commit 04c55383fa5689357bcdd2c8036725a55ed632bc. (CVE-2023-3609)

    An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited     to achieve local privilege escalation.

    The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated     according to packet sizes without bounds checks.

    We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64. (CVE-2023-3611)

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to     achieve local privilege escalation.

    If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or     decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter     and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.

    We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f. (CVE-2023-3776)

Tenable has extracted the preceding description block directly from the tested product 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 use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local     privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a     hrtimer. We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59     (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for     5.15 stable). (CVE-2023-3389)

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

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6248-1 advisory.

    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)

    It was discovered that a race condition existed in Adreno GPU DRM driver in the Linux kernel, leading to a     double-free vulnerability. A local attacker could use this to cause a denial of service (system crash).
    (CVE-2023-21106)

    Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux     kernel did not properly perform permission checks in certain situations. A local attacker could possibly     use this to gain elevated privileges. (CVE-2023-2640)

    Mingi Cho discovered that the netfilter subsystem in the Linux kernel did not properly validate the status     of a nft chain while performing a lookup by id, leading to a use-after-free vulnerability. An attacker     could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2023-31248)

    Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux kernel did     not properly perform permission checks in certain situations. A local attacker could possibly use this to     gain elevated privileges. (CVE-2023-32629)

    Querijn Voet discovered that a race condition existed in the io_uring subsystem 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-2023-3389)

    Tanguy Dubroca discovered that the netfilter subsystem in the Linux kernel did not properly handle certain     pointer data type, leading to an out-of- bounds write vulnerability. A privileged attacker could use this     to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-35001)

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 Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6246-1 advisory.

    It was discovered that the IP-VLAN network driver for the Linux kernel did not properly initialize memory     in some situations, leading to an out-of- bounds write vulnerability. An attacker could use this to cause     a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-3090)

    Mingi Cho discovered that the netfilter subsystem in the Linux kernel did not properly validate the status     of a nft chain while performing a lookup by id, leading to a use-after-free vulnerability. An attacker     could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2023-31248)

    Querijn Voet discovered that a race condition existed in the io_uring subsystem 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-2023-3389)

    It was discovered that the netfilter subsystem in the Linux kernel did not properly handle some error     conditions, 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-2023-3390)

    Lin Ma discovered that a race condition existed in the MCTP implementation 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-2023-3439)

    Tanguy Dubroca discovered that the netfilter subsystem in the Linux kernel did not properly handle certain     pointer data type, leading to an out-of- bounds write vulnerability. A privileged attacker could use this     to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-35001)

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.

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

    An issue was discovered in the Linux kernel through 6.0.9. drivers/media/dvb-core/dvb_net.c has a     .disconnect versus dvb_device_open race condition that leads to a use-after-free.(CVE-2022-45886)

    In multiple functions of binder.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-2023-21255)

    A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation. Flaw in the error handling of bound chains causes a use-after-free in     the abort path of NFT_MSG_NEWRULE. The vulnerability requires CAP_NET_ADMIN to be triggered. We recommend     upgrading past commit 4bedf9eee016286c835e3d8fa981ddece5338795.(CVE-2023-3610)

    An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited     to achieve local privilege escalation. The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-     of-bounds write because lmax is updated according to packet sizes without bounds checks. We recommend     upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.(CVE-2023-3611)

    A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux     Kernel. This flaw allows an attacker with local user access to cause a system crash or leak internal     kernel information.(CVE-2023-3567)

    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-2023-35001)

    Linux Kernel nftables Use-After-Free Local Privilege Escalation Vulnerability; `nft_chain_lookup_byid()`     failed to check whether a chain was active and CAP_NET_ADMIN is in any user or network     namespace.(CVE-2023-31248)

    bpf: Fix incorrect verifier pruning due to missing register precision taints(CVE-2023-2163)

    A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local     privilege escalation.Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a     hrtimer.We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59     (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and0e388fce7aec40992eadee654193cad345d62663     for 5.15 stable).(CVE-2023-3389)

    A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in     net/netfilter/nf_tables_api.c.Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a     dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local     attacker with user access to cause a privilege escalation issue.We recommend upgrading past     commit1240eb93f0616b21c675416516ff3d74798fdc97.(CVE-2023-3390)

    An issue was discovered in the Linux kernel before 6.3.2. A use-after-free was found in saa7134_finidev in     drivers/media/pci/saa7134/saa7134-core.c.(CVE-2023-35823)

    An issue was discovered in the Linux kernel before 6.3.2. A use-after-free was found in dm1105_remove in     drivers/media/pci/dm1105/dm1105.c.(CVE-2023-35824)

    A race condition was found in the Philips SAA7134 driver in the Linux kernel. In saa7134_initdev, dev-     video_q.timeout is eventually bound to saa7134_buffer_timeout. If we remove the module or device which     will call saa7134_finidev to cleanup, there may be unfinished work. This could lead to a use-after-free     issue.(CVE-2023-3327)

    An out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in     kernel/relay.c in the relayfs. This flaw could allow a local attacker to crash the system or leak kernel     internal information.(CVE-2023-3268)

    An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7.
    It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets.
    This may result in denial of service or privilege escalation.(CVE-2023-35788)

    A NULL pointer dereference issue was found in the gfs2 file system in the Linux kernel. It occurs on     corrupt gfs2 file systems when the evict code tries to reference the journal descriptor structure after it     has been freed and set to NULL. A privileged local user could use this flaw to cause a kernel     panic.(CVE-2023-3212)

    An issue was discovered in the Linux kernel before 6.3.3. There is an out-of-bounds read in crc16 in     lib/crc16.c when called from fs/ext4/super.c because ext4_group_desc_csum does not properly check an     offset. NOTE: this is disputed by third parties because the kernel is not intended to defend against     attackers with the stated 'When modifying the block device while it is mounted by the filesystem'     access.(CVE-2023-34256)

    A use after free flaw was found in hfsplus_put_super in fs/hfsplus/super.c in the Linux Kernel. This flaw     could allow a local user to cause a denial of service problem.(CVE-2023-2985)

    A flaw was found in the networking subsystem of the Linux kernel within the handling of the RPL protocol.
    This issue results from the lack of proper handling of user-supplied data, which can lead to an assertion     failure. This may allow an unauthenticated remote attacker to create a denial of service condition on the     system.(CVE-2023-2156)

    An issue was discovered in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel 6.2. There is a     blocking operation when a task is in !TASK_RUNNING. In dvb_frontend_get_event, wait_event_interruptible is     called; the condition is dvb_frontend_test_event(fepriv,events). In dvb_frontend_test_event,     down(fepriv-gt;sem) is called. However, wait_event_interruptible would put the process to sleep, and     down(fepriv-gt;sem) may block the process.(CVE-2023-31084)

    In the Linux kernel before 6.0.3, drivers/gpu/drm/virtio/virtgpu_object.c misinterprets the     drm_gem_shmem_get_sg_table return value (expects it to be NULL in the error case, whereas it is actually     an error pointer).(CVE-2023-22998)

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to     achieve local privilege escalation. If tcf_change_indev() fails, fw_set_parms() will immediately return an     error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can     control the reference counter and set it to zero, they can cause the reference to be freed, leading to a     use-after-free vulnerability. We recommend upgrading past commit     0323bce598eea038714f941ce2b22541c46d488f.(CVE-2023-3776)

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to     achieve local privilege escalation. If tcf_change_indev() fails, u32_set_parms() will immediately return     an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can     control the reference counter and set it to zero, they can cause the reference to be freed, leading to a     use-after-free vulnerability. We recommend upgrading past commit     04c55383fa5689357bcdd2c8036725a55ed632bc.(CVE-2023-3609)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization 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.

A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer.    We recommend upgrading past commit `ef7dfac51d8ed961b742218f526bd589f3900a59` (`4716c73b188566865bdd79c3a6709696a224ac04` for 5.10 stable and `0e388fce7aec40992eadee654193cad345d62663` for 5.15 stable).

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
244665	Linux Distros 未修补的漏洞：CVE-2023-3389	Nessus	Misc.	2025/8/7	2025/10/28	high
178798	Ubuntu 22.04 LTS：Linux 内核 (OEM) 漏洞 (USN-6248-1)	Nessus	Ubuntu Local Security Checks	2023/7/26	2024/9/19	critical
178794	Ubuntu 20.04 LTS / 22.04 LTS：Linux 内核漏洞 (USN-6246-1)	Nessus	Ubuntu Local Security Checks	2023/7/26	2025/3/31	critical
179764	Amazon Linux 2 : kernel (ALASKERNEL-5.10-2023-038)	Nessus	Amazon Linux Local Security Checks	2023/8/14	2024/12/11	critical
244665	Linux Distros Unpatched Vulnerability : CVE-2023-3389	Nessus	Misc.	2025/8/7	2025/10/28	high
178798	Ubuntu 22.04 LTS : Linux kernel (OEM) vulnerabilities (USN-6248-1)	Nessus	Ubuntu Local Security Checks	2023/7/26	2024/9/19	critical
153035	Photon OS 4.0: Linux PHSA-2021-4.0-0095	Nessus	PhotonOS Local Security Checks	2021/9/7	2025/10/16	high
178794	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6246-1)	Nessus	Ubuntu Local Security Checks	2023/7/26	2025/3/31	critical
188795	EulerOS Virtualization 2.11.1 : kernel (EulerOS-SA-2023-3054)	Nessus	Huawei Local Security Checks	2024/1/16	2025/9/29	high
503817	Siemens SIMATIC Devices Use After Free (CVE-2023-3389)	Tenable OT Security	Tenable.ot	2025/10/29	2025/10/29	high

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