Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xmlsoft | Libxml2 | <= 2.9.1 |
| Apple | Mac Os X | <= 10.10.4 |
| Canonical | Ubuntu Linux | 10.04 |
| Debian | Debian Linux | 7.0 |
| Redhat | Enterprise Linux | 5.0 |
References
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
- http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
- http://lists.apple.com/archives/security-announce/2015/Aug/msg00002.html
- http://lists.opensuse.org/opensuse-updates/2014-10/msg00034.html
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00120.html
- http://rhn.redhat.com/errata/RHSA-2014-1655.html
- http://rhn.redhat.com/errata/RHSA-2014-1885.html
- http://secunia.com/advisories/59903
- http://secunia.com/advisories/61965
- http://secunia.com/advisories/61966
- http://secunia.com/advisories/61991
- http://www.debian.org/security/2014/dsa-3057
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:244
- http://www.openwall.com/lists/oss-security/2014/10/17/7Patch
- http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
FAQ
What is CVE-2014-3660?
CVE-2014-3660 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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 ...
How severe is CVE-2014-3660?
CVE-2014-3660 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2014-3660?
Check the references section above for vendor advisories and patch information. Affected products include: Xmlsoft Libxml2, Apple Mac Os X, Canonical Ubuntu Linux, Debian Debian Linux, Redhat Enterprise Linux.