CVE-2016-3630 Mercurial arbitrary code execution vulnerability
Remote attackers can execute arbitrary code via clone, push, or pull commands due to a rounding error in the binary delta decoder.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2016-3630?
CVE-2016-3630 is a high-severity vulnerability in Debian Debian Linux, published on 13 Apr 2016. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The binary delta decoder in Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a (1) clone, (2) push, or (3) pull command, related to (a) a list sizing rounding error and (b) short records.
Weakness: CWE-19
Which versions are affected by CVE-2016-3630?
3 open source packages ship an affected version, including mercurial. It affects 7 products.
| Package | Affected | Fixed in |
|---|---|---|
mercurial PyPI | All versions | 3.7.3 |
mercurial PyPI | All versions | 3.7.3 |
mercurial PyPI | All versions | 3.7.3 |
Products include Debian Debian Linux, Fedoraproject Fedora, Mercurial Mercurial, Opensuse Leap, Opensuse Opensuse, Suse Linux Enterprise Debuginfo and 1 more.
How do I fix CVE-2016-3630?
Upgrade mercurial to 3.7.3 or later.
Is CVE-2016-3630 being exploited?
There is no known exploitation of CVE-2016-3630 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2016-3630, GHSA-9vjf-jjcq-3gh7, PYSEC-2016-29, UBUNTU-CVE-2016-3630.