Detections
Analytics

Oracle Linux 8 : kernel (ELSA-2026-68531)

medium Nessus Plugin ID 348246

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-2026-68531 advisory.

 - net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() (Izabela Bakollari) [RHEL-244096] {CVE-2026-72298}
 - ipv6: sit: reload inner IPv6 header after GSO offloads (Jamie Bainbridge) [RHEL-225905] {CVE-2026-53228}
 - ipvlan: Make the addrs_lock be per port (Jamie Bainbridge) [RHEL-229962] {CVE-2026-23103}
 - xfrm: Fix dev use-after-free in xfrm async resumption (Sabrina Dubroca) [RHEL-232949] {CVE-2026-31663}
 - xfrm: hold dev ref until after transport_finish NF_HOOK (Sabrina Dubroca) [RHEL-232949] {CVE-2026-31663}
 - xfrm: hold device only for the asynchronous decryption (Sabrina Dubroca) [RHEL-232949] {CVE-2026-31663}
 - xfrm: input: hold netns during deferred transport reinjection (Sabrina Dubroca) [RHEL-227504] {CVE-2026-63919}
 - xfrm: fix stale skb->prev after async crypto steals a GSO segment (Sabrina Dubroca) [RHEL-236099] {CVE-2026-68426}
 - xfrm: propagate -EINPROGRESS from validate_xmit_xfrm() (Sabrina Dubroca) [RHEL-236099] {CVE-2026-68426}
 - xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx() (Sabrina Dubroca) [RHEL-227976] {CVE-2026-53239}
 - ip6: vti: Use ip6_tnl.net in vti6_changelink(). (Sabrina Dubroca) [RHEL-231741] {CVE-2026-63917}
 - ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate(). (Sabrina Dubroca) [RHEL-228934] {CVE-2026-63921}
 - inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP (Jamie Bainbridge) [RHEL-226122] {CVE-2026-46266}
 - ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() (Jamie Bainbridge) [RHEL-227265] {CVE-2026-64002}
 - ppp: require CAP_NET_ADMIN in target netns for unattached ioctls (Jamie Bainbridge) [RHEL-227981] {CVE-2026-53075}
 - ipv6: mcast: Fix use-after-free when processing MLD queries (Jamie Bainbridge) [RHEL-226057] {CVE-2026-53275}
 - net: guard timestamp cmsgs to real error queue skbs (Jamie Bainbridge) [RHEL-225848] {CVE-2026-53223}
 - flow_dissector: do not dissect PPPoE PFC frames (Jamie Bainbridge) [RHEL-232609] {CVE-2026-46306}
 - ipv6: prevent possible UaF in addrconf_permanent_addr() (Jamie Bainbridge) [RHEL-225595] {CVE-2026-43339}
 - net: slip: serialize receive against buffer reallocation (Michal Schmidt) [RHEL-237390] {CVE-2026-68143}
 - netfilter: require Ethernet MAC header before using eth_hdr() (CKI Backport Bot) [RHEL-230663] {CVE-2026-53131}
 - netfilter: nf_conntrack_h323: fix OOB read in decode_choice() (CKI Backport Bot) [RHEL-230607] {CVE-2026-43233}
 - ALSA: timer: Fix UAF at snd_timer_user_params() (CKI Backport Bot) [RHEL-228683] {CVE-2026-53192}
 - netfilter: xt_policy: fix strict mode inbound policy matching (CKI Backport Bot) [RHEL-228832] {CVE-2026-52920}
 - netfilter: conntrack_irc: fix possible out-of-bounds read (CKI Backport Bot) [RHEL-225240] {CVE-2026-53268}

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-2026-68531.html

Plugin Details

Severity: Medium

ID: 348246

File Name: oraclelinux_ELSA-2026-68531.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 9/18/2026

Updated: 9/18/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.8

Percentile: 99.33

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2026-23103

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

Temporal Vector: CVSS:3.0/E:P/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/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/18/2026

Vulnerability Publication Date: 2/4/2026

Reference Information

CVE: CVE-2026-23103, CVE-2026-31663, CVE-2026-43233, CVE-2026-43339, CVE-2026-46266, CVE-2026-46306, CVE-2026-52920, CVE-2026-53075, CVE-2026-53131, CVE-2026-53176, CVE-2026-53192, CVE-2026-53223, CVE-2026-53228, CVE-2026-53239, CVE-2026-53268, CVE-2026-53275, CVE-2026-63917, CVE-2026-63919, CVE-2026-63921, CVE-2026-64002, CVE-2026-68143, CVE-2026-68426