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
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-17458
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2017-17458.html
Vendor advisory: cve@mitre.org — https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.4.1_.282017-11-07.29
Vendor advisory: cve@mitre.org — https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-November/107333.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | 7.0 | affected | |
| debian | 8.0 | affected | |
| debian | bookworm | fixed | 4.4.1-1 |
| debian | bullseye | fixed | 4.4.1-1 |
| debian | forky | fixed | 4.4.1-1 |
| debian | sid | fixed | 4.4.1-1 |
| debian | trixie | fixed | 4.4.1-1 |
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
Verify integrity in audit chain (admin only). AS-IS.