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CVE-2018-13346

Published: 6 July 2018

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.

From the Ubuntu Security Team

It was discovered that Mercurial incorrectly handled patch data. An attacker could possibly use this issue to cause a denial of service or other unspecified impact.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
mercurial
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic
Released (4.5.3-1ubuntu2.1)
cosmic Not vulnerable
(4.6.1-1ubuntu1)
trusty
Released (2.8.2-1ubuntu1.4)
upstream
Released (4.6.1-1)
xenial
Released (3.7.3-1ubuntu1.1)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N