Vulnerability Monitor

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CVE-2017-17458

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.

Published

2017-12-07T18:29:00.203

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

10.0

Weaknesses

Type: Primary
CWE-78

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mercurial	mercurial	< 4.4.1	Yes
Operating System	debian	debian_linux	7.0	Yes
Operating System	debian	debian_linux	8.0	Yes

References

http://www.securityfocus.com/bid/102926 Third Party Advisory, VDB Entry ([email protected])
https://bz.mercurial-scm.org/show_bug.cgi?id=5730 Issue Tracking, Third Party Advisory ([email protected])
https://confluence.atlassian.com/sourcetreekb/sourcetree-security-advisory-2018-01-24-942834324.html Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2017/12/msg00027.html Mailing List, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2018/07/msg00005.html Mailing List, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2018/07/msg00041.html Mailing List, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html ([email protected])
https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-November/107333.html Vendor Advisory ([email protected])
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.4.1_.282017-11-07.29 Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/102926 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bz.mercurial-scm.org/show_bug.cgi?id=5730 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://confluence.atlassian.com/sourcetreekb/sourcetree-security-advisory-2018-01-24-942834324.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2017/12/msg00027.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2018/07/msg00005.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2018/07/msg00041.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html (af854a3a-2127-422b-91ae-364da2661108)
https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-November/107333.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.4.1_.282017-11-07.29 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)