CentOS Errata and Security Advisory CESA-2019:2964
The patch program applies diff files to originals. The diff command is used to compare an original to a changed file. Diff lists the changes made to the file. A person who has the original file can then use the patch command with the diff file to add the changes to their original file (patching the file).
patch: do_ed_script in pch.c does not block strings beginning with a ! character (CVE-2018-20969)
patch: OS shell command injection when processing crafted patch files (CVE-2019-13638)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Merged security bulletin from advisories: http://lists.centos.org/pipermail/centos-announce/2019-October/035533.html
Affected packages: patch
Upstream details at: