CVE-2017-17458
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 7 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 4.4.1-1 |
| sid | Fixed | 4.4.1-1 |
| forky | Fixed | 4.4.1-1 |
| bullseye | Fixed | 4.4.1-1 |
| bookworm | Fixed | 4.4.1-1 |
| 8.0 | Affected | — |
| 7.0 | Affected | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | mercurial | <4.4.1 | 4.4.1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| mercurial | mercurial | {"endExcluding":"4.4.1"} | 4.4.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2017-17458
- https://bz.mercurial-scm.org/show_bug.cgi?id=5730
- https://confluence.atlassian.com/sourcetreekb/sourcetree-security-advisory-2018-01-24-942834324.html
- https://github.com/dscho/hg
- https://github.com/pypa/advisory-database/tree/main/vulns/mercurial/PYSEC-2017-90.yaml
- https://lists.debian.org/debian-lts-announce/2017/12/msg00027.html
- https://lists.debian.org/debian-lts-announce/2018/07/msg00005.html
- https://lists.debian.org/debian-lts-announce/2018/07/msg00041.html
- https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html
- https://web.archive.org/web/20200227132808/http://www.securityfocus.com/bid/102926
- 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
- http://www.securityfocus.com/bid/102926
- https://www.suse.com/security/cve/CVE-2017-17458.html
- https://security-tracker.debian.org/tracker/CVE-2017-17458
CWEs
CWE-78
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.