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CVE-2018-20969

Date: August 15, 2019

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.

Language: DEBIAN

Severity Score

Related Resources (14)

https://nvd.nist.gov/vuln/detail/CVE-2018-20969
https://access.redhat.com/security/cve/CVE-2018-20969
https://access.redhat.com/errata/RHSA-2019:2964
https://access.redhat.com/errata/RHSA-2019:2798
https://git.savannah.gnu.org/cgit/patch.git/commit/?id=3fcd042d26d70856e826a42b5f93dc4854d80bf0
https://seclists.org/bugtraq/2019/Aug/29
https://github.com/irsl/gnu-patch-vulnerabilities
https://access.redhat.com/errata/RHSA-2019:4061
https://security-tracker.debian.org/tracker/CVE-2018-20969
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-20969
http://packetstormsecurity.com/files/154124/GNU-patch-Command-Injection-Directory-Traversal.html
https://access.redhat.com/errata/RHSA-2019:3757
https://access.redhat.com/errata/RHSA-2019:3758
https://www.mend.io/vulnerability-database/CVE-2018-20969

Severity Score

Weakness Type (CWE)

OS Command Injections

CWE-78

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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