CVE-2025-5278

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

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

Red Hat · coreutils · Red Hat Enterprise Linux 10 · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 9 · Cert Manager support for Red Hat OpenShift release 1.17 · Cert Manager support for Red Hat OpenShift release 1.18

CVSS v3.1 REDHAT

4.4 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

EPSS

0.29% chance of exploitation in the next 30 days, 20th percentile

Published

2025-05-27

Updated

2026-10-14

Proof-of-concept exploits (1)

• mczimmermann/cs2630★ · 2025-12-07

References

• CVE Record
• NVD entry

Related

• CVE-2024-0684