CVE-2014-3660

Publication date 16 October 2014

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

parser.c in libxml2 before 2.9.2 does not properly prevent entity expansion even when entity substitution has been disabled, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted XML document containing a large number of nested entity references, a variant of the "billion laughs" attack.

Status

Package Ubuntu Release Status
libxml2 14.10 utopic
Fixed 2.9.1+dfsg1-4ubuntu1
14.04 LTS trusty
Fixed 2.9.1+dfsg1-3ubuntu4.4
12.04 LTS precise
Fixed 2.7.8.dfsg-5.1ubuntu4.11
10.04 LTS lucid
Fixed 2.7.6.dfsg-1ubuntu1.15

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libxml2

References

Related Ubuntu Security Notices (USN)

    • USN-2389-1
    • libxml2 vulnerability
    • 27 October 2014

Other references