Use of Uninitialized Resource Affecting sssd-common-debuginfo package, versions <0:2.9.4-1.amzn2023.0.5


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-AMZN2023-SSSDCOMMONDEBUGINFO-22398487
  • published10 Nov 2026
  • disclosed4 Aug 2026

Introduced: 4 Aug 2026

CVE-2026-68744  (opens in a new tab)
CWE-908  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 sssd-common-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-common-debuginfo package and not the sssd-common-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. The sss_nss_protocol_fill_initgr() function in the NSS responder pre-allocates reply space for all group entries but does not shrink the packet when groups are skipped, causing uninitialized heap bytes to be transmitted to the client. A local attacker can exploit this to disclose cached directory data and heap layout information from the sssd_nss process.

CVSS Base Scores

version 3.1