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CVE
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CVE-2018-20969Date: (C)2019-08-19   (M)2023-12-22


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.8CVSS Score : 9.3
Exploit Score: 1.8Exploit Score: 8.6
Impact Score: 5.9Impact Score: 10.0
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: MEDIUM
Privileges Required: NONEAuthentication: NONE
User Interaction: REQUIREDConfidentiality: COMPLETE
Scope: UNCHANGEDIntegrity: COMPLETE
Confidentiality: HIGHAvailability: COMPLETE
Integrity: HIGH 
Availability: HIGH 
  
Reference:
https://seclists.org/bugtraq/2019/Aug/29
RHSA-2019:2798
RHSA-2019:2964
RHSA-2019:3757
RHSA-2019:3758
RHSA-2019:4061
http://packetstormsecurity.com/files/154124/GNU-patch-Command-Injection-Directory-Traversal.html
https://git.savannah.gnu.org/cgit/patch.git/commit/?id=3fcd042d26d70856e826a42b5f93dc4854d80bf0
https://github.com/irsl/gnu-patch-vulnerabilities

CPE    1
cpe:/a:gnu:patch
CWE    1
CWE-78
OVAL    10
oval:org.secpod.oval:def:503357
oval:org.secpod.oval:def:503340
oval:org.secpod.oval:def:66763
oval:org.secpod.oval:def:205378
...

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