Out-of-bounds Read Affecting python-sss package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.14% (4th percentile)

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  • Snyk IDSNYK-RHEL7-PYTHONSSS-18545651
  • published5 Aug 2026
  • disclosed3 Aug 2026

Introduced: 3 Aug 2026

NewCVE-2026-68742  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 python-sss.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-sss package and not the python-sss 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_parse_addr() function in the NSS responder does not validate the addrlen field against the remaining packet body size. A local attacker can exploit this via a crafted GETHOSTBYADDR request to the NSS responder socket, causing an out-of-bounds read and process crash, resulting in a denial of service.

CVSS Base Scores

version 3.1