Use of Uninitialized Resource Affecting libsss_certmap package, versions *


Severity

Recommended
0.0
low
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.1% (1st percentile)

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  • Snyk IDSNYK-RHEL7-LIBSSSCERTMAP-18545387
  • published5 Aug 2026
  • disclosed3 Aug 2026

Introduced: 3 Aug 2026

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

How to fix?

There is no fixed version for RHEL:7 libsss_certmap.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsss_certmap package and not the libsss_certmap package as distributed by RHEL. See How to fix? for RHEL:7 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