CVE-2018-13346: Input Validation
First published: Fri Jun 22 2018(Updated: )
Mercurial before version 4.6.1 has a missing check for fragment start position in mpatch.c:mpatch_apply() Upstream Changelog: <a href="https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.6.1_.282018-06-06.29">https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.6.1_.282018-06-06.29</a> Upstream Patch: <a href="https://www.mercurial-scm.org/repo/hg/rev/faa924469635">https://www.mercurial-scm.org/repo/hg/rev/faa924469635</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mercurial Mercurial | <4.6.1 | |
| redhat/mercurial | <4.6.1 | 4.6.1 |
| pip/mercurial | <4.6.1 | 4.6.1 |
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Reference Links
- https://access.redhat.com/errata/RHSA-2019:2276
- https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html
- https://www.mercurial-scm.org/repo/hg/rev/faa924469635
- https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.6.1_.282018-06-06.29
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1594088
- https://access.redhat.com/security/cve/cve-2018-13346
- https://bugzilla.redhat.com/show_bug.cgi?id=1594090
- https://nvd.nist.gov/vuln/detail/CVE-2018-13346
- https://github.com/advisories/GHSA-9xv4-r2hf-26gh (Advisory)
- https://github.com/pypa/advisory-database/tree/main/vulns/mercurial/PYSEC-2018-88.yaml
Frequently Asked Questions
What is CVE-2018-13346?
CVE-2018-13346 is a vulnerability in Mercurial before 4.6.1 that allows the mpatch_apply function in mpatch.c to incorrectly proceed in cases where the fragment start is past the end of the original data.
What is the severity of CVE-2018-13346?
The severity of CVE-2018-13346 is high, with a CVSS score of 7.5.
Which software versions are affected by CVE-2018-13346?
Versions of Mercurial before 4.6.1 are affected by CVE-2018-13346.
How can I fix CVE-2018-13346?
To fix CVE-2018-13346, update Mercurial to version 4.6.1 or later.
Where can I find more information about CVE-2018-13346?
More information about CVE-2018-13346 can be found at the following references: [Link 1](https://access.redhat.com/errata/RHSA-2019:2276), [Link 2](https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html), [Link 3](https://www.mercurial-scm.org/repo/hg/rev/faa924469635).
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