CVE-2025-5278

Coreutils: heap buffer under-read in gnu coreutils sort via key specification

MEDIUM
4.4
CVSS Score
Published: May 27, 2025 at 08:52 PM UTC
Updated: October 31, 2026 at 04:18 AM UTC
4 products affected across 2 vendorsEnterprise LinuxOpenShift Container PlatformCert Manager support for Red Hat OpenShift release 1.17

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Severity
MEDIUM4.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

A flaw was found in GNU Coreutils. The sort utility's begfield() function is vulnerable to a heap buffer under-read. The program may access memory outside the allocated buffer if a user runs a crafted command using the traditional key format. A malicious input could lead to a crash or leak sensitive data.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
Vendor states this is fixed in 0:8.30-21.el8_10 (unaffected)
Vendor states this is fixed in 0:8.32-41.el9_8 (unaffected)
Vendor states this is fixed in 0:9.5-8.el10_2 (unaffected)
Vendor states this is fixed in 6 (unknown)
Vendor states this is fixed in 7 (unknown)
All versions
Vendor states this is fixed in 1791371069 (unaffected)
Vendor states this is fixed in 1791371080 (unaffected)
Vendor states this is fixed in 1791788287 (unaffected)
Vendor states this is fixed in 1791970484 (unaffected)
All versions
Vendor states this is fixed in 1789029076 (unaffected)
Vendor states this is fixed in 1791459707 (unaffected)
Vendor states this is fixed in 1791459711 (unaffected)
Vendor states this is fixed in 1791459759 (unaffected)
Vendor states this is fixed in 1791966259 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.4MEDIUMredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-121

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