CVE-2018-20969

do_ed_script in pch.c in GNU patch through 2.7.6 does not block strings beginning with a ! character. NOTE: this is the same commit as for CVE-2019-13638, but the ! syntax is specific to ed, and is unrelated to a shell metacharacter.

CVSS v3.0

7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2.0

9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS

2.68% chance of exploitation in the next 30 days, 85th percentile

Published

2019-08-16

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://seclists.org/bugtraq/2019/Aug/29

References

• CVE Record
• NVD entry

Related

• CVE-2018-20966
• CVE-2018-20985
• CVE-2018-20849
• CVE-2018-21013
• CVE-2018-20848
• CVE-2018-21014