CVE-2018-13346 — Improper Input Validation in Mercurial

CWE-20 — Improper Input ValidationCWE-125 — Out-of-bounds Read9 documents6 sources
Severity
7.5HIGHNVD
EPSS
0.3%
top 49.79%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
MercurialDebian Mercurial
Timeline
PublishedJul 6
Latest updateMay 13

Description

The mpatch_apply function in mpatch.c in Mercurial before 4.6.1 incorrectly proceeds in cases where the fragment start is past the end of the original data, aka OVE-20180430-0004.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶debiandebian/mercurial< mercurial 4.6.1-1 (bookworm)
▶NVDmercurial/mercurial< 4.6.1
▶PyPImercurial/mercurial< 4.6.1
▶Debianmercurial/mercurial< 4.6.1-1+3

Patches

Patch: www.mercurial-scm.org ↗Patch: www.mercurial-scm.org ↗

🔴Vulnerability Details

3
GHSA
Mercurial Improper Input Validation vulnerability↗2022-05-13
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OSV
Mercurial Improper Input Validation vulnerability↗2022-05-13
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OSV
CVE-2018-13346: The mpatch_apply function in mpatch↗2018-07-06
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📋Vendor Advisories

2
Red Hat
mercurial: Missing check for fragment start position in mpatch.c:mpatch_apply()↗2018-06-06
▶
Debian
CVE-2018-13346: mercurial - The mpatch_apply function in mpatch.c in Mercurial before 4.6.1 incorrectly proc...↗2018
▶

💬Community

3
Bugzilla
CVE-2018-13347 mercurial: Buffer underflow in mpatch.c:mpatch_apply()↗2018-06-22
▶
Bugzilla
CVE-2018-13346 mercurial: Missing check for fragment start position in mpatch.c:mpatch_apply()↗2018-06-22
▶
Bugzilla
CVE-2018-13346 CVE-2018-13347 mercurial: various flaws [fedora-all]↗2018-06-22
▶