ELSA-2026-500375: Security update for 8 packages

ELSA-2026-500375, released October 6, 2026, fixes 8 CVEs across 8 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

9.1

Base score, 0 to 10

Highest EPSS

0.0159

75th percentile

Priority of the 8 CVEs

Patch now 0
                                Urgent 0
                                High 7
                                Routine 1

Fixed package versions

Product	Release	Fixed in
kernel-uek	ol 8	0:5.4.17-2136.360.3.el7uek
kernel-uek-container	ol 8	0:5.4.17-2136.360.3.el7uek
kernel-uek-container-debug	ol 8	0:5.4.17-2136.360.3.el7uek
kernel-uek-debug	ol 8	0:5.4.17-2136.360.3.el7uek
kernel-uek-debug-devel	ol 8	0:5.4.17-2136.360.3.el7uek
kernel-uek-devel	ol 8	0:5.4.17-2136.360.3.el7uek
kernel-uek-doc	ol 8	0:5.4.17-2136.360.3.el7uek
kernel-uek-tools	ol 8	0:5.4.17-2136.360.3.el7uek

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-23455	kernel: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: check for zero leng...	9.1	0.0159	None reported
High	CVE-2026-64312	linux: In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - restore callback for non-parall...	7.5	0.0050	None reported
High	CVE-2026-23457	linux: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_sip: fix Content-Length...	8.6	0.0045	None reported
High	CVE-2026-31662	tipc: fix bc_ackers underflow on duplicate GRP_ACK_MSG	7.5	0.0039	None reported
High	CVE-2026-64313	crypto: ecc - Fix carry overflow in vli multiplication	8.8	0.0036	None reported
High	CVE-2026-31588	KVM: x86: Use scratch field in MMIO fragment to hold small write values	8.8	0.0019	None reported
High	CVE-2026-64306	crypto: drbg - Fix returning success on failure in CTR_DRBG	7.0	0.0016	None reported
Routine	CVE-2026-31664	xfrm: clear trailing padding in build_polexpire()	5.5	0.0012	None reported

Also fixes CVE-2026-23455

SUSE-SU-2026:2238-1
kernel-64kb, kernel-azure, kernel-default and 7 more on sles 15.7
ELSA-2026-50372
kernel-uek, kernel-uek-core, kernel-uek-debug and 32 more on ol 10, ol 9
ALAS2023-2026-1681
bpftool, bpftool-debuginfo, kernel and 19 more on amzn 2023
ALAS2023-2026-1596
bpftool6.18, bpftool6.18-debuginfo, kernel-livepatch-6.18.20-20.229 and 19 more on amzn 2023
ALAS2023-2026-1594
bpftool6.12, bpftool6.12-debuginfo, kernel-livepatch-6.12.79-101.147 and 19 more on amzn 2023
ELSA-2026-21556
kernel, kernel-abi-stablelists, kernel-core and 26 more on ol 9
RHSA-2026:21556
kernel, kernel-64k, kernel-64k-core and 69 more on RHEL 9
ALSA-2026:21556
kernel, kernel-64k, kernel-64k-core and 71 more on almalinux 9

Vendor advisory

https://linux.oracle.com/errata/ELSA-2026-500375.html

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