CVE ID:	CVE-2018-20969
Description:	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.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2018-20969 Bugtraq: 20190816 Details about recent GNU patch vulnerabilities (Google Search) https://seclists.org/bugtraq/2019/Aug/29 http://packetstormsecurity.com/files/154124/GNU-patch-Command-Injection-Directory-Traversal.html https://git.savannah.gnu.org/cgit/patch.git/commit/?id=3fcd042d26d70856e826a42b5f93dc4854d80bf0 https://github.com/irsl/gnu-patch-vulnerabilities RedHat Security Advisories: RHSA-2019:2798 https://access.redhat.com/errata/RHSA-2019:2798 RedHat Security Advisories: RHSA-2019:2964 https://access.redhat.com/errata/RHSA-2019:2964 RedHat Security Advisories: RHSA-2019:3757 https://access.redhat.com/errata/RHSA-2019:3757 RedHat Security Advisories: RHSA-2019:3758 https://access.redhat.com/errata/RHSA-2019:3758 RedHat Security Advisories: RHSA-2019:4061 https://access.redhat.com/errata/RHSA-2019:4061