CVE-2018-13346
HIGHMercurial < 4.6.1 - Denial of Service via mpatch_apply Fragment Start Validation
Title source: llmDescription
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.
References (4)
Core 4
Core References
Third Party Advisory x_refsource_misc
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.6.1_.282018-06-06.29
Patch, Third Party Advisory x_refsource_misc
https://www.mercurial-scm.org/repo/hg/rev/faa924469635
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:2276
Mailing List mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html
Scores
CVSS v3
7.5
EPSS
0.0234
EPSS Percentile
81.5%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Details
CWE
CWE-20
Status
published
Products (2)
mercurial/mercurial
< 4.6.1
pypi/mercurial
0 - 4.6.1PyPI
Published
Jul 06, 2018
Tracked Since
Feb 18, 2026