The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6134-1 advisory.

    It was discovered that the Traffic-Control Index (TCINDEX) implementation in the Linux kernel did not     properly perform filter deactivation in some situations. A local attacker could possibly use this to gain     elevated privileges. Please note that with the fix for this CVE, kernel support for the TCINDEX classifier     has been removed. (CVE-2023-1829)

    It was discovered that the Traffic-Control Index (TCINDEX) implementation in the Linux kernel contained 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-2023-1281)

    It was discovered that the OverlayFS implementation in the Linux kernel did not properly handle copy up     operation in some conditions. A local attacker could possibly use this to gain elevated privileges.
    (CVE-2023-0386)

    It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute     instructions using a return address from a sibling thread. A local attacker could possibly use this to     expose sensitive information. (CVE-2022-27672)

    Zheng Wang discovered that the Intel i915 graphics driver in the Linux kernel did not properly handle     certain error conditions, leading to a double-free. A local attacker could possibly use this to cause a     denial of service (system crash). (CVE-2022-3707)

    Haowei Yan discovered that a race condition existed in the Layer 2 Tunneling Protocol (L2TP)     implementation in the Linux kernel. A local attacker could possibly use this to cause a denial of service     (system crash). (CVE-2022-4129)

    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 the NTFS file system 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-2022-4842)

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

    Jordy Zomer and Alexandra Sandulescu discovered that syscalls invoking the do_prlimit() function in the     Linux kernel did not properly handle speculative execution barriers. A local attacker could use this to     expose sensitive information (kernel memory). (CVE-2023-0458)

    Jordy Zomer and Alexandra Sandulescu discovered that the Linux kernel did not properly implement     speculative execution barriers in usercopy functions in certain situations. A local attacker could use     this to expose sensitive information (kernel memory). (CVE-2023-0459)

    It was discovered that the Human Interface Device (HID) support driver in the Linux kernel contained a     type confusion vulnerability in some situations. A local attacker could use this to cause a denial of     service (system crash). (CVE-2023-1073)

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

    It was discovered that the TLS subsystem in the Linux kernel contained a type confusion vulnerability in     some situations. A local attacker could use this to cause a denial of service (system crash) or possibly     expose sensitive information. (CVE-2023-1075)

    It was discovered that the Reliable Datagram Sockets (RDS) protocol implementation in the Linux kernel     contained a type confusion vulnerability in some situations. An attacker could use this to cause a denial     of service (system crash). (CVE-2023-1078)

    Xingyuan Mo discovered that the x86 KVM implementation in the Linux kernel did not properly initialize     some data structures. A local attacker could use this to expose sensitive information (kernel memory).
    (CVE-2023-1513)

    It was discovered that the NFS implementation in the Linux kernel did not properly handle pending tasks in     some situations. A local attacker could use this to cause a denial of service (system crash) or expose     sensitive information (kernel memory). (CVE-2023-1652)

    It was 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-2023-1872)

    It was discovered that the Android Binder IPC subsystem in the Linux kernel did not properly validate     inputs in some situations, leading to a use- after-free vulnerability. A local attacker could use this to     cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-20938)

    It was discovered that the ARM64 EFI runtime services implementation in the Linux kernel did not properly     manage concurrency calls. A local attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2023-21102)

    It was discovered that a use-after-free vulnerability existed in the iSCSI TCP implementation in the Linux     kernel. A local attacker could possibly use this to cause a denial of service (system crash).
    (CVE-2023-2162)

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

    It was discovered that the NET/ROM protocol implementation in the Linux kernel contained a race condition     in some situations, leading to a use- after-free vulnerability. A local attacker could use this to cause a     denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-32269)

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

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

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

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

  - A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a     privileged local account can leak kernel stack information when issuing commands to the     /dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it     can be further used to defeat existing kernel protection mechanisms. (CVE-2021-3923)

  - When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the     sibling thread after an SMT mode switch potentially resulting in information disclosure. (CVE-2022-27672)

  - A double-free memory flaw was found in the Linux kernel. The Intel GVT-g graphics driver triggers VGA card     system resource overload, causing a fail in the intel_gvt_dma_map_guest_page function. This issue could     allow a local user to crash the system. (CVE-2022-3707)

  - A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking     configuration (redirecting egress packets to ingress using TC action 'mirred') a local unprivileged user     could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a     retransmission, resulting in a denial of service condition. (CVE-2022-4269)

  - An issue was discovered in the Linux kernel through 6.0.10. l2cap_config_req in net/bluetooth/l2cap_core.c     has an integer wraparound via L2CAP_CONF_REQ packets. (CVE-2022-45934)

  - 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 commit     a664ec9158eeddd75121d39c9a0758016097fa96 (CVE-2023-0045)

  - There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local     privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or     CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege. There is a     use-after-free bug of icsk_ulp_data of a struct inet_connection_sock. When CONFIG_TLS is enabled, user can     install a tls context (struct tls_context) on a connected tcp socket. The context is not cleared if this     socket is disconnected and reused as a listener. If a new socket is created from the listener, the context     is inherited and vulnerable. The setsockopt TCP_ULP operation does not require any privilege. We recommend     upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c (CVE-2023-0461)

  - A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race     problem. This flaw leads to a denial of service issue. If patch ebda44da44f6 ('net: sched: fix race     condition in qdisc_graft()') not applied yet, then kernel could be affected. (CVE-2023-0590)

  - A memory corruption flaw was found in the Linux kernel's human interface device (HID) subsystem in how a     user inserts a malicious USB device. This flaw allows a local user to crash or potentially escalate their     privileges on the system. (CVE-2023-1073)

  - A memory leak flaw was found in the Linux kernel's Stream Control Transmission Protocol. This issue may     occur when a user starts a malicious networking service and someone connects to this service. This could     allow a local user to starve resources, causing a denial of service. (CVE-2023-1074)

  - 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-2023-1076)

  - A flaw was found in the Linux kernel. A use-after-free may be triggered in asus_kbd_backlight_set when     plugging/disconnecting in a malicious USB device, which advertises itself as an Asus device. Similarly to     the previous known CVE-2023-25012, but in asus devices, the work_struct may be scheduled by the LED     controller while the device is disconnecting, triggering a use-after-free on the struct asus_kbd_leds *led     structure. A malicious USB device may exploit the issue to cause memory corruption with controlled data.
    (CVE-2023-1079)

  - In nf_tables_updtable, if nf_tables_table_enable returns an error, nft_trans_destroy is called to free the     transaction object. nft_trans_destroy() calls list_del(), but the transaction was never placed on a list
    -- the list head is all zeroes, this results in a NULL pointer dereference. (CVE-2023-1095)

  - A flaw use after free in the Linux kernel integrated infrared receiver/transceiver driver was found in the     way user detaching rc device. A local user could use this flaw to crash the system or potentially escalate     their privileges on the system. (CVE-2023-1118)

  - Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege     Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-     after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this     vulnerability to elevate its privileges to root. This issue affects Linux Kernel: from 4.14 before git     commit ee059170b1f7e94e55fa6cadee544e176a6e59c2. (CVE-2023-1281)

  - A slab-out-of-bound read problem was found in brcmf_get_assoc_ies in     drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux Kernel. This issue could occur     when assoc_info->req_len data is bigger than the size of the buffer, defined as WL_EXTRA_BUF_MAX, leading     to a denial of service. (CVE-2023-1380)

  - A data race flaw was found in the Linux kernel, between where con is allocated and con->sock is set. This     issue leads to a NULL pointer dereference when accessing con->sock->sk in net/tipc/topsrv.c in the tipc     protocol in the Linux kernel. (CVE-2023-1382)

  - A remote denial of service vulnerability was found in the Linux kernel's TIPC kernel module. The while     loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue.
    Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system     to instantly spike to 100%, causing a denial of service condition. (CVE-2023-1390)

  - A race problem was found in fs/proc/task_mmu.c in the memory management sub-component in the Linux kernel.
    This issue may allow a local attacker with user privilege to cause a denial of service. (CVE-2023-1582)

  - In the Linux kernel before 6.1.13, there is a double free in net/mpls/af_mpls.c upon an allocation failure     (for registering the sysctl table under a new location) during the renaming of a device. (CVE-2023-26545)

  - A NULL pointer dereference flaw was found in the az6027 driver in drivers/media/usb/dev-usb/az6027.c in     the Linux Kernel. The message from user space is not checked properly before transferring into the device.
    This flaw allows a local user to crash the system or potentially cause a denial of service.
    (CVE-2023-28328)

  - do_tls_getsockopt in net/tls/tls_main.c in the Linux kernel through 6.2.6 lacks a lock_sock call, leading     to a race condition (with a resultant use-after-free or NULL pointer dereference). (CVE-2023-28466)

  - An issue was discovered in the Linux kernel before 5.13.3. lib/seq_buf.c has a seq_buf_putmem_hex buffer     overflow. (CVE-2023-28772)

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.

ID	Name	Product	Family	Published	Updated	Severity
176616	Ubuntu 20.04 LTS : Linux kernel (Intel IoTG) vulnerabilities (USN-6134-1)	Nessus	Ubuntu Local Security Checks	6/2/2023	7/4/2025	high
176579	EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2023-2020)	Nessus	Huawei Local Security Checks	6/2/2023	10/23/2023	high

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