Debian LTS Advisory ([SECURITY] [DLA 1072-1] mercurial security update)

Published: 2018-02-06 23:00:00
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:C/I:C/A:C

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

Affected Versions:
mercurial on Debian Linux

Recommendations:
For Debian 7 'Wheezy', these problems have been fixed in version 2.2.2-4+deb7u5. We recommend that you upgrade your mercurial Linux Distribution Packages.

Summary:
Two significant vulnerabilities were found in the Mercurial version control system which could lead to shell injection attacks and out-of-tree file overwrite. CVE-2017-1000115 Mercurial's symlink auditing was incomplete prior to 4.3, and could be abused to write to files outside the repository. CVE-2017-1000116 Mercurial was not sanitizing hostnames passed to ssh, allowing shell injection attacks on clients by specifying a hostname starting with -oProxyCommand. This vulnerability is similar to those in Git (CVE-2017-1000117) and Subversion (CVE-2017-9800).

Detection Method:
This check tests the installed software version using the apt Linux Distribution Package manager.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2017-1000115
https://nvd.nist.gov/vuln/detail/CVE-2017-1000116
https://nvd.nist.gov/vuln/detail/CVE-2017-1000117
https://nvd.nist.gov/vuln/detail/CVE-2017-9800

References:

https://lists.debian.org/debian-lts-announce/2017/08/msg00032.html

Severity
High
CVSS Score
10.0
Published
2018-02-06
Modified
2019-05-14
Category
Debian Local Security Checks

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