CVE-2026-6238 Affecting glibc-devel-static package, versions <2.31-150300.104.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.36% (29th percentile)

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  • Snyk IDSNYK-SLES154-GLIBCDEVELSTATIC-17991864
  • published16 Jul 2026
  • disclosed15 Jul 2026

Introduced: 15 Jul 2026

NewCVE-2026-6238  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 glibc-devel-static to version 2.31-150300.104.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-devel-static package and not the glibc-devel-static package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

The deprecated functions ns_printrrf, ns_printrr and fp_nquery in the GNU C Library version 2.2 and newer fail to validate the RDATA content against the RDATA length in a DNS response when processing LOC, CERT, TKEY or TSIG records, which may allow an attacker to craft a DNS response, causing a target application to crash or read uninitialized memory.

These functions are for application debugging only and hence not in the path of code executed by the DNS resolver. Further, they have been deprecated since version 2.34 and should not be used by any new applications. Applications should consider porting away from these interfaces since they may be removed in future versions.

CVSS Base Scores

version 3.1