CVE-2019-20633

5.5 mediumEPSS 1.0%

Medium (5.5) in gnu patch. EPSS 1.0% chance of exploitation in the next 30 days.

GNU patch through 2.7.6 contains a free(p_line[p_end]) Double Free vulnerability in the function another_hunk in pch.c that can cause a denial of service via a crafted patch file. NOTE: this issue exists because of an incomplete fix for CVE-2018-6952.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 63% of CVEs (scores of 2026-10-31)
CWE: CWE-415
Published: 2020-03-25
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

gnu:patch

References

https://savannah.gnu.org/bugs/index.php?56683
https://savannah.gnu.org/bugs/index.php?56683

Check your stack JSON