Vulnerability Details CVE-2018-20969
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 62.7%
CVSS Severity
CVSS v3 Score 7.8
CVSS v2 Score 9.3
References
- http://packetstormsecurity.com/files/154124/GNU-patch-Command-Injection-Directory-Traversal.html
- 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
- https://github.com/irsl/gnu-patch-vulnerabilities
- https://seclists.org/bugtraq/2019/Aug/29
- http://packetstormsecurity.com/files/154124/GNU-patch-Command-Injection-Directory-Traversal.html
- 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
- https://github.com/irsl/gnu-patch-vulnerabilities
- https://seclists.org/bugtraq/2019/Aug/29
Products affected by CVE-2018-20969
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cpe:2.3:a:gnu:patch:2.5
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cpe:2.3:a:gnu:patch:2.5.4
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cpe:2.3:a:gnu:patch:2.5.9
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cpe:2.3:a:gnu:patch:2.6
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cpe:2.3:a:gnu:patch:2.6.1
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cpe:2.3:a:gnu:patch:2.7
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cpe:2.3:a:gnu:patch:2.7.1
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cpe:2.3:a:gnu:patch:2.7.2
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cpe:2.3:a:gnu:patch:2.7.3
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cpe:2.3:a:gnu:patch:2.7.4
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cpe:2.3:a:gnu:patch:2.7.5
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cpe:2.3:a:gnu:patch:2.7.6