CVE-2018-20969 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.8 HIGH
Vector:  CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H


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Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://packetstormsecurity.com/files/154124/GNU-patch-Command-Injection-Directory-Traversal.html Third Party Advisory  VDB Entry 
https://access.redhat.com/errata/RHSA-2019:2798
https://access.redhat.com/errata/RHSA-2019:2964
https://access.redhat.com/errata/RHSA-2019:3757
https://access.redhat.com/errata/RHSA-2019:3758
https://access.redhat.com/errata/RHSA-2019:4061
https://git.savannah.gnu.org/cgit/patch.git/commit/?id=3fcd042d26d70856e826a42b5f93dc4854d80bf0 Patch  Vendor Advisory 
https://github.com/irsl/gnu-patch-vulnerabilities
https://seclists.org/bugtraq/2019/Aug/29 Exploit  Mailing List  Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') cwe source acceptance level NIST  

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Change History

8 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-20969
NVD Published Date:
08/16/2019
NVD Last Modified:
09/05/2019
Source:
MITRE