Incorrect Check of Function Return Value Affecting perf-debuginfo package, versions <1:6.1.174-217.345.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.49% (39th percentile)

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  • Snyk IDSNYK-AMZN2023-PERFDEBUGINFO-17289293
  • published10 Jun 2026
  • disclosed6 May 2026

Introduced: 6 May 2026

CVE-2026-43099  (opens in a new tab)
CWE-253  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 perf-debuginfo to version 1:6.1.174-217.345.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1817.

NVD Description

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

In the Linux kernel, the following vulnerability has been resolved:

ipv4: icmp: fix null-ptr-deref in icmp_build_probe()

ipv6_stub->ipv6_dev_find() may return ERR_PTR(-EAFNOSUPPORT) when the IPv6 stack is not active (CONFIG_IPV6=m and not loaded), and passing this error pointer to dev_hold() will cause a kernel crash with null-ptr-deref.

Instead, silently discard the request. RFC 8335 does not appear to define a specific response for the case where an IPv6 interface identifier is syntactically valid but the implementation cannot perform the lookup at runtime, and silently dropping the request may safer than misreporting "No Such Interface".

CVSS Base Scores

version 3.1