SB2026092014 - openEuler 22.03 LTS SP4 update for kernel

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Main Vulnerability Database SB2026092014

SB2026092014 - openEuler 22.03 LTS SP4 update for kernel

Published: September 20, 2026

Security Bulletin ID SB2026092014
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2026-64551)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to disclose uninitialized memory.

The vulnerability exists due to an out-of-bounds read in sctp_sf_do_5_2_6_stale() when processing an ERROR chunk with a STALE_COOKIE cause in the COOKIE_ECHOED state. A local user can send a specially crafted SCTP packet to disclose uninitialized memory.

The leaked value is echoed to the peer in the Cookie Preservative of the reply INIT. Exploitation is reachable by a peer that can drive an association into COOKIE_ECHOED, including an unprivileged process using a raw SCTP socket in a user and network namespace.


Remediation

Install update from vendor's website.

References