Home/CVE/The mpatch_decode function in mpatch.c in Mercurial before 4.6.1 mishandles certain situations where there should be at
CVE

CVE-2018-13348

The mpatch_decode function in mpatch.c in Mercurial before 4.6.1 mishandles certain situations where there should be at

The mpatch_decode function in mpatch.c in Mercurial before 4.6.1 mishandles certain situations where there should be at least 12 bytes remaining after the current position in the patch data, but actually are not, aka OVE-20180430-0001.

HIGH · CVSS 7.5 EPSS 0.00662
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

1
mercurial< 4.6.1
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI mercurial HIGH fixed in 4.6.1
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Jul 2018 · 12:29 AM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
⚑

Vendor Advisories

4
suse-csafopenSUSE-SU-2024:10586-1
suse-csafSUSE-SU-2018:1990-1
suse-csafSUSE-SU-2018:1996-1
suse-csafSUSE-SU-2018:1998-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html
https://www.mercurial-scm.org/repo/hg/rev/90a274965de7PatchVendor Advisory
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.6.1_.282018-06-06.29Vendor Advisory
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