Incorrect Check of Function Return Value Affecting corosynclib-devel package, versions <0:3.1.9-3.amzn2023.0.2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.99% (78th percentile)

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  • Snyk IDSNYK-AMZN2023-COROSYNCLIBDEVEL-16067172
  • published15 Apr 2026
  • disclosed1 Apr 2026

Introduced: 1 Apr 2026

CVE-2026-35091  (opens in a new tab)
CWE-253  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 corosynclib-devel to version 0:3.1.9-3.amzn2023.0.2 or higher.
This issue was patched in ALAS2023-2026-1560.

NVD Description

Note: Versions mentioned in the description apply only to the upstream corosynclib-devel package and not the corosynclib-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A flaw was found in Corosync. A remote unauthenticated attacker can exploit a wrong return value vulnerability in the Corosync membership commit token sanity check by sending a specially crafted User Datagram Protocol (UDP) packet. This can lead to an out-of-bounds read, causing a denial of service (DoS) and potentially disclosing limited memory contents

CVSS Base Scores

version 3.1