Vulnerability DatabaseCVE-2018-1000156
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CVE-2018-1000156
Published:April 06, 2018
Updated:September 20, 2026
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.
Related Resources (24)
https://access.redhat.com/errata/RHSA-2018:2091
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-1000156
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=894667#19
https://web.archive.org/web/20180405231329/https://twitter.com/kurtseifried/status/982028968877436928
https://access.redhat.com/errata/RHSA-2018:2097
http://packetstormsecurity.com/files/154124/GNU-patch-Command-Injection-Directory-Traversal.html
https://access.redhat.com/security/cve/CVE-2018-1000156
https://savannah.gnu.org/bugs/index.php?53566
https://access.redhat.com/errata/RHSA-2018:2092
https://seclists.org/bugtraq/2019/Aug/29
https://access.redhat.com/errata/RHSA-2018:1199
https://access.redhat.com/errata/RHSA-2018:1200
https://usn.ubuntu.com/3624-1/
https://access.redhat.com/errata/RHSA-2018:2095
http://rachelbythebay.com/w/2018/04/05/bangpatch/
https://access.redhat.com/errata/RHSA-2018:2096
https://usn.ubuntu.com/3624-2/
https://lists.debian.org/debian-lts-announce/2018/04/msg00013.html
https://access.redhat.com/errata/RHSA-2018:2093
https://twitter.com/kurtseifried/status/982028968877436928
https://security.gentoo.org/glsa/201904-17
https://seclists.org/bugtraq/2019/Jul/54
https://security-tracker.debian.org/tracker/CVE-2018-1000156
https://access.redhat.com/errata/RHSA-2018:2094
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CVSS v4
Base Score:
8.5
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Input Validation
CWE-20
EPSS
Base Score:
5.33