CVE-2017-1000116

Publication date 5 October 2017

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Description

Mercurial prior to 4.3 did not adequately sanitize hostnames passed to ssh, leading to possible shell-injection attacks.

From the Ubuntu Security Team

It was discovered that Mercurial incorrectly handled hostnames passed to ssh. An attacker could possibly use this issue to execute arbitrary code.

Status

Package Ubuntu Release Status
mercurial 18.10 cosmic
Not affected
18.04 LTS bionic
Not affected
17.10 artful
Fixed 4.3.1-2
17.04 zesty 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

References

Other references