The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:3675-1 advisory.

    This update for the Linux Kernel 5.14.21-150400_15_28 fixes several issues.

    The following security issues were fixed:

    - CVE-2023-32233: Fixed a use-after-free in Netfilter nf_tables when processing batch requests     (bsc#1211187).
    - CVE-2023-2156: Fixed a flaw in the networking subsystem within the handling of the RPL protocol     (bsc#1211395).
    - CVE-2023-35001: Fixed an out-of-bounds memory access flaw in nft_byteorder that could allow a local     attacker to escalate their privilege (bsc#1213063).
    - CVE-2023-1077: Fixed a type confusion in pick_next_rt_entity(), that could cause memory corruption     (bsc#1208839).
    - CVE-2023-3090: Fixed a heap out-of-bounds write in the ipvlan network driver (bsc#1212849).

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 remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:5627 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance     Events (CVE-2023-2235)

    * kernel: ipvlan: out-of-bounds write caused by unclear skb->cb (CVE-2023-3090)

    * kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() (CVE-2023-4004)

    * kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and     cls_route (CVE-2023-4128)

    * kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (CVE-2023-35001)

    * kernel: race condition in VT_RESIZEX ioctl when vc_cons[i].d is already NULL leading to NULL pointer     dereference (CVE-2020-36558)

    * kernel: LoadPin bypass via dm-verity table reload (CVE-2022-2503)

    * kernel: an out-of-bounds vulnerability in i2c-ismt driver (CVE-2022-2873)

    * kernel: xfrm_expand_policies() in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice     (CVE-2022-36879)

    * kernel: use-after-free due to race condition in qdisc_graft() (CVE-2023-0590)

    * kernel: netfilter: NULL pointer dereference in nf_tables due to zeroed list head (CVE-2023-1095)

    * kernel: hash collisions in the IPv6 connection lookup table (CVE-2023-1206)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * [HPEMC RHEL 8 REGRESSION] acpi-cpufreq: Skip initialization if a cpufreq driver exists (BZ#2186307)

    * [max] RHEL8.4 Pre-Alpha - [ 4.18.0-240.4.el8.dt2.ppc64le ][ fleetwood / P9 64TB/192c ] While performing     DLPAR CPU operations BUG: arch topology borken messages are observed and CPU remove operation fails for     removal of 140 with 255 return (BZ#2210295)

    * [Intel 8.8 BUG] [SPR] IOMMU: QAT Device Address Translation Issue with Invalidation Completion Ordering     (BZ#2221098)

    * avoid unnecessary page fault retires on shared memory types (BZ#2221101)

    * [i40e] error: Cannot set interface MAC/vlanid to 1e:b7:e2:02:b1:aa/0 for ifname ens4f0 vf 0: Resource     temporarily unavailable (BZ#2228164)

    * oops on cifs_mount due to null tcon (BZ#2229129)

    * kernel panic due to stack overflow on ppc64le due to deep call chain. (BZ#2230268)

    * [Hyper-V][RHEL 8]incomplete fc_transport implementation in storvsc causes null dereference in     fc_timed_out() (BZ#2230744)

    * Withdrawal: GFS2: couldn't freeze filesystem: -16 (BZ#2231826)

    * [RHEL 8][Hyper-V]Excessive hv_storvsc driver logging with srb_status  SRB_STATUS_INTERNAL_ERROR  (0x30)     (BZ#2231989)

    * kernel-devel RPM cross-compiled by CKI contains host-arch scripts (BZ#2232138)

    * RHEL-8: crypto: rng - Fix lock imbalance in crypto_del_rng (BZ#2232216)

    * [Intel 8.9] iavf: Driver Update (BZ#2232400)

    * Important iavf bug fixes July 2023 (BZ#2232401)

    * iavf: hang in iavf_remove() - SNO node hangs after running systemctl reboot (BZ#2232404)

    * [RHEL 8.9] Proactively backport locking fixes from upstream (BZ#2235394)

    * NAT sport clash in OCP causing 1 second TCP connection establishment delay. (BZ#2236515)

    * xfs: mount fails when device file name is long (BZ#2236814)

    * netfilter: RHEL 8.8 phase 2 backports from upstream (BZ#2236817)

    * swap deadlock when attempt to charge a page to a cgroup stalls waiting on I/O plugged on another task in     swap code (BZ#2237686)

    Enhancement(s):

    * [Intel 8.7 FEAT] TSC: Avoid clock watchdog when not needed (BZ#2216051)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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.

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

  - A time-of-check to time-of-use issue exists in io_uring subsystem's IORING_OP_CLOSE operation in the Linux     kernel's versions 5.6 - 5.11 (inclusive), which allows a local user to elevate their privileges to root.
    Introduced in b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb, patched in     9eac1904d3364254d622bf2c771c4f85cd435fc2, backported to stable in     788d0824269bef539fe31a785b1517882eafed93. (CVE-2023-1295)

  - An out-of-bounds memory access flaw was found in the Linux kernel's XFS file system in how a user restores     an XFS image after failure (with a dirty log journal). This flaw allows a local user to crash or     potentially escalate their privileges on the system. (CVE-2023-2124)

  - A known cache speculation vulnerability, known as Branch History Injection (BHI) or Spectre-BHB, becomes     actual again for the new hw AmpereOne. Spectre-BHB is similar to Spectre v2, except that malicious code     uses the shared branch history (stored in the CPU Branch History Buffer, or BHB) to influence mispredicted     branches within the victim's hardware context. Once that occurs, speculation caused by the mispredicted     branches can cause cache allocation. This issue leads to obtaining information that should not be     accessible. (CVE-2023-3006)

  - A heap out-of-bounds write vulnerability in the Linux Kernel ipvlan network driver can be exploited to     achieve local privilege escalation. The out-of-bounds write is caused by missing skb->cb initialization in     the ipvlan network driver. The vulnerability is reachable if CONFIG_IPVLAN is enabled. We recommend     upgrading past commit 90cbed5247439a966b645b34eb0a2e037836ea8e. (CVE-2023-3090)

  - A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel. When providing font->width and     font->height greater than 32 to fbcon_set_font, since there are no checks in place, a shift-out-of-bounds     occurs leading to undefined behavior and possible denial of service. (CVE-2023-3161)

  - 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)

  - 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 commit     1240eb93f0616b21c675416516ff3d74798fdc97. (CVE-2023-3390)

  - 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)

  - 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)

  - 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 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)

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
181665	SUSE SLES15 Security Update : kernel RT (Live Patch 7 for SLE 15 SP4) (SUSE-SU-2023:3675-1)	Nessus	SuSE Local Security Checks	9/20/2023	6/26/2026	high
182828	RHEL 8 : kernel (RHSA-2023:5627)	Nessus	Red Hat Local Security Checks	10/10/2023	9/26/2025	high
189006	EulerOS 2.0 SP10 : kernel (EulerOS-SA-2023-2787)	Nessus	Huawei Local Security Checks	1/16/2024	3/31/2025	high

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