CVE-2018-1000156

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CVE-2018-1000156

Summary:

Details: GNU Patch version 2.7.6 contains an input validation vulnerability when processing patch files, specifically the EDITOR_PROGRAM invocation (using ed) can result in code execution. This attack appear to be exploitable via a patch file processed via the patch utility. This is similar to FreeBSD's CVE-2015-1418 however although they share a common ancestry the code bases have diverged over time.

References: https://seclists.org/bugtraq/2019/Aug/29, http://packetstormsecurity.com/files/154124/GNU-patch-Command-Injection-Directory-Traversal.html, https://seclists.org/bugtraq/2019/Jul/54, https://web.archive.org/web/20180405231329/https://twitter.com/kurtseifried/status/982028968877436928, https://access.redhat.com/errata/RHSA-2018:2091, https://access.redhat.com/errata/RHSA-2018:2093, https://access.redhat.com/errata/RHSA-2018:2097, https://lists.debian.org/debian-lts-announce/2018/04/msg00013.html, https://security.gentoo.org/glsa/201904-17, https://twitter.com/kurtseifried/status/982028968877436928, http://rachelbythebay.com/w/2018/04/05/bangpatch/, https://access.redhat.com/errata/RHSA-2018:1199, https://access.redhat.com/errata/RHSA-2018:2095, https://usn.ubuntu.com/3624-2/, https://access.redhat.com/errata/RHSA-2018:2092, https://access.redhat.com/errata/RHSA-2018:2094, https://savannah.gnu.org/bugs/index.php?53566, https://usn.ubuntu.com/3624-1/, https://access.redhat.com/errata/RHSA-2018:1200, https://access.redhat.com/errata/RHSA-2018:2096, https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=894667#19