CVE-2016-3630

high-risk
Published 2016-04-13

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.

Do I need to act?

~
5.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (11)

Affected Vendors

Fedoraproject Suse Opensuse Mercurial Debian

References (24)

Mailing List http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181505.html
Mailing List http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181542.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00016.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00017.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00018.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00043.html
Third Party Advisory http://www.debian.org/security/2016/dsa-3542
Third Party Advisory http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
Third Party Advisory https://security.gentoo.org/glsa/201612-19
Third Party Advisory https://selenic.com/repo/hg-stable/rev/b6ed2505d6cf
Third Party Advisory https://selenic.com/repo/hg-stable/rev/b9714d958e89
Vendor Advisory https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_3.7.3_.282016-3-29.29
Mailing List http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181505.html
Mailing List http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181542.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00016.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00017.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00018.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00043.html
Third Party Advisory http://www.debian.org/security/2016/dsa-3542
Third Party Advisory http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
and 4 more references
54
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 8/34 · Low
Exposure 16/34 · Moderate