Vulnerability CVE-2017-17458


Published: 2017-12-07

Description:
In Mercurial before 4.4.1, it is possible that a specially malformed repository can cause Git subrepositories to run arbitrary code in the form of a .git/hooks/post-update script checked into the repository. Typical use of Mercurial prevents construction of such repositories, but they can be created programmatically.

 References:
https://bz.mercurial-scm.org/show_bug.cgi?id=5730
https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-November/107333.html
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.4.1_.282017-11-07.29

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