SARA / Free Tools / CVE / CVE-2018-20969

CVE-2018-20969 — do_ed_script in pch

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
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EPSS
0.35% (top 42.60%)
CWE
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Published
2019-08-16T03:36:12.000Z
Last modified
2024-08-05T12:19:26.375Z
CVSS vector
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01What is this vulnerability?

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.

02Affected products

VendorProductVersions
na / n/an/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

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07Related CVEs

CVE-2019-13638
Cited in vendor advisory

08Timeline

09References

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