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Oracle Linux 8 : ELSA-2026-66000-0: / kernel (ELSA-2026-660000)

critical Nessus Plugin ID 345984

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-660000 advisory.

 - tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done (Xin Long) [RHEL-228877] {CVE-2026-63801}
 - tipc: clear sock->sk on the failed-insert path in tipc_sk_create() (Xin Long) [RHEL-238050] {CVE-2026-68117}
 - sctp: fix race between sctp_wait_for_connect and peeloff (Xin Long) [RHEL-229464] {CVE-2026-63971}
 - sctp: diag: reject stale associations in dump_one path (Xin Long) [RHEL-231561] {CVE-2026-52917}
 - sctp: validate stream count in sctp_process_strreset_inreq() (Xin Long) [RHEL-236135] {CVE-2026-68315}
 - sctp: fix auth_hmacs array size in struct sctp_cookie (Xin Long) [RHEL-237394] {CVE-2026-68376}
 - sctp: auth: verify auth requirement when auth_chunk is NULL (Xin Long) [RHEL-237088] {CVE-2026-68300}
 - sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing (Xin Long) [RHEL-190202] {CVE-2026-53246}
 - netfilter: nf_log: validate MAC header was set before dumping it (CKI Backport Bot) [RHEL-232055] {CVE-2026-52942}
 - netfilter: nf_conntrack_sip: don't use simple_strtoul (CKI Backport Bot) [RHEL-232024] {CVE-2026-52986}
 - scsi: qla2xxx: Clear cmds after chip reset (CKI Backport Bot) [RHEL-230822] {CVE-2025-68745}
 - scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() (CKI Backport Bot) [RHEL-225791] {CVE-2026-46149}
 - security/keys: fix missed RCU read section on lookup (Bruno Meneguele) [RHEL-225679] {CVE-2026-64015}
 - ixgbevf: fix use-after-free in VEPA multicast source pruning (CKI Backport Bot) [RHEL-227760] {CVE-2026-64113}
 - xfrm: Don't clobber inner headers when already set (Ivan Vecera) [RHEL-188227] {CVE-2026-53091}
 - net: pull headers in qdisc_pkt_len_segs_init() (Ivan Vecera) [RHEL-188227] {CVE-2026-53091}
 - net: qdisc_pkt_len_segs_init() cleanup (Ivan Vecera) [RHEL-188227] {CVE-2026-53091}
 - net: use qdisc_pkt_len_segs_init() in sch_handle_ingress() (Ivan Vecera) [RHEL-188227] {CVE-2026-53091}
 - net_sched: initialize qdisc_skb_cb(skb)->pkt_segs in qdisc_pkt_len_init() (Ivan Vecera) [RHEL-188227] {CVE-2026-53091}
 - net: init shinfo->gso_segs from qdisc_pkt_len_init() (Ivan Vecera) [RHEL-188227] {CVE-2026-53091}
 - net: add more sanity checks to qdisc_pkt_len_init() (Ivan Vecera) [RHEL-188227] {CVE-2026-53091}
 - net_sched: make room for (struct qdisc_skb_cb)->pkt_segs (Ivan Vecera) [RHEL-188227] {CVE-2026-53091}
 - net: account for encap headers in qdisc pkt len (Ivan Vecera) [RHEL-188227] {CVE-2026-53091}
 - sch_cake: do not use skb_mac_header() in cake_overhead() (Ivan Vecera) [RHEL-188227] {CVE-2026-53091}
 - net: do not use skb_mac_header() in qdisc_pkt_len_init() (Ivan Vecera) [RHEL-188227] {CVE-2026-53091}
 - net: Skip GSO length estimation if transport header is not set (Ivan Vecera) [RHEL-188227] {CVE-2026-53091}
 - rhashtable: clear stale iter->p on table restart (CKI Backport Bot) [RHEL-248433] {CVE-2026-64563}
 - net: bridge: stop fast-leave after deleting a port group (CKI Backport Bot) [RHEL-246938] {CVE-2026-74480}
 - nvmet-rdma: handle inline data with a nonzero offset (CKI Backport Bot) [RHEL-244910] {CVE-2026-72129}
 - crypto: pcrypt - Fix handling of MAY_BACKLOG requests (Ricardo Robaina) [RHEL-226702] {CVE-2026-43493}
 - crypto: pcrypt - Delay write to padata->info (Ricardo Robaina) [RHEL-226702] {CVE-2026-43493}
 - crypto: pcrypt - Do not clear MAY_SLEEP flag in original request (Ricardo Robaina) [RHEL-226702] {CVE-2026-43493}
 - smb: client: validate DFS referral PathConsumed (CKI Backport Bot) [RHEL-237655] {CVE-2026-68343}
 - netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CKI Backport Bot) [RHEL-228903] {CVE-2026-64007}

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.

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2026-66000-0.html

Plugin Details

Severity: Critical

ID: 345984

File Name: oraclelinux_ELSA-2026-660000.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 9/15/2026

Updated: 9/15/2026

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.61

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-74480

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:oracle:linux:8, cpe:/o:oracle:linux:8:10:baseos_patch, p-cpe:/a:oracle:linux:bpftool, p-cpe:/a:oracle:linux:kernel-abi-stablelists, p-cpe:/a:oracle:linux:kernel-core, p-cpe:/a:oracle:linux:kernel-cross-headers, p-cpe:/a:oracle:linux:kernel-debug-core, p-cpe:/a:oracle:linux:kernel-debug-devel, p-cpe:/a:oracle:linux:kernel-debug-modules-extra, p-cpe:/a:oracle:linux:kernel-debug-modules, p-cpe:/a:oracle:linux:kernel-debug, p-cpe:/a:oracle:linux:kernel-devel, p-cpe:/a:oracle:linux:kernel-headers, p-cpe:/a:oracle:linux:kernel-modules-extra, p-cpe:/a:oracle:linux:kernel-modules, p-cpe:/a:oracle:linux:kernel-tools-libs-devel, p-cpe:/a:oracle:linux:kernel-tools-libs, p-cpe:/a:oracle:linux:kernel-tools, p-cpe:/a:oracle:linux:kernel, p-cpe:/a:oracle:linux:perf, p-cpe:/a:oracle:linux:python3-perf

Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Ease: No known exploits are available

Patch Publication Date: 9/14/2026

Vulnerability Publication Date: 5/19/2026

Reference Information

CVE: CVE-2026-43493, CVE-2026-53002, CVE-2026-64007, CVE-2026-64563, CVE-2026-68343, CVE-2026-72129, CVE-2026-74480