CVE-2018-13347

Publication date 6 July 2018

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

mpatch.c in Mercurial before 4.6.1 mishandles integer addition and subtraction, aka OVE-20180430-0002.

From the Ubuntu Security Team

It wa discovered that Mercurial incorrectly handled integer addition and subtraction. An attacker could possibly use this issue to cause a denial of service or other unspecified impact.

Status

Package Ubuntu Release Status
mercurial 18.10 cosmic
Not affected
18.04 LTS bionic
Fixed 4.5.3-1ubuntu2.1
17.10 artful Ignored end of life
16.04 LTS xenial
Fixed 3.7.3-1ubuntu1.1
14.04 LTS trusty
Fixed 2.8.2-1ubuntu1.4

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H