| Name | CVE-2018-1000156 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1348-1 |
| Debian Bugs | 894993 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| patch (PTS) | jessie, jessie (lts) | 2.7.5-1+deb8u3 | fixed |
| stretch (security), stretch (lts), stretch | 2.7.5-1+deb9u2 | fixed | |
| buster (security), buster, buster (lts) | 2.7.6-3+deb10u1 | fixed | |
| sid, trixie, bullseye, bookworm | 2.7.6-7 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| patch | source | wheezy | 2.6.1-3+deb7u1 | DLA-1348-1 | ||
| patch | source | jessie | 2.7.5-1+deb8u1 | |||
| patch | source | stretch | 2.7.5-1+deb9u1 | |||
| patch | source | (unstable) | 2.7.6-2 | 894993 |
Upstream bug: https://savannah.gnu.org/bugs/?53566
https://rachelbythebay.com/w/2018/04/05/bangpatch/
https://twitter.com/kurtseifried/status/982028968877436928
This CVE is specifically for GNU patch and relates to CVE-2015-1418
http://git.savannah.gnu.org/cgit/patch.git/commit/?id=123eaff0d5d1aebe128295959435b9ca5909c26d
Respective patch in FreeBSD: https://www.freebsd.org/security/advisories/FreeBSD-SA-15:18.bsdpatch.asc
Respective patch in OpenBSD: https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/013_patch.patch.sig
(Functional) regression/issue introduced with only the initial commit:
https://savannah.gnu.org/bugs/?53820
https://bugzilla.suse.com/show_bug.cgi?id=1092500
Followup fixes needed to address https://bugs.debian.org/933140
http://git.savannah.gnu.org/cgit/patch.git/commit/?id=19599883ffb6a450d2884f081f8ecf68edbed7ee
http://git.savannah.gnu.org/cgit/patch.git/commit/?id=369dcccdfa6336e5a873d6d63705cfbe04c55727