Out-of-bounds Read Affecting sssd-kcm-debuginfo package, versions <0:2.9.4-1.amzn2023.0.5


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.1% (1st percentile)

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  • Snyk IDSNYK-AMZN2023-SSSDKCMDEBUGINFO-22398533
  • published10 Nov 2026
  • disclosed6 Oct 2026

Introduced: 6 Oct 2026

CVE-2026-104043  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 sssd-kcm-debuginfo to version 0:2.9.4-1.amzn2023.0.5 or higher.
This issue was patched in ALAS2023-2026-3416.

NVD Description

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

A flaw was found in SSSD. A local attacker with access to the Name Service Switch (NSS) responder UNIX socket can trigger an integer underflow by sending a specially crafted request with an undersized packet header. This issue causes an out-of-bounds memory read during packet parsing, crashing the responder process and resulting in a Denial of Service (DoS).

CVSS Base Scores

version 3.1