Debian Security Advisory

DLA-1224-1 mercurial -- LTS security update

Date Reported:
28 Dec 2017
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2017-17458.
More information:

A vulnerability was found in the Mercurial version control system which could lead to remote arbitrary code execution.

  • CVE-2017-17458

    A specially malformed Mercurial repository could cause Git subrepositories to run arbitrary code in the form of a .git/hooks/post-update script checked into the parent repository. Typical use of Mercurial prevents construction of such repositories, but they can be created programmatically.

For Debian 7 Wheezy, these problems have been fixed in version 2.2.2-4+deb7u6.

We recommend that you upgrade your mercurial packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: