CVE-2014-3660
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…
Does this matter?
Lower severity and a low EPSS score (3.99%). Track it; it rarely justifies an emergency change on its own.
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 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 3.99% probability · 90th percentile
- CISA KEV
- Not listed
- Affected
- xmlsoft/libxml2 · apple/mac os x · canonical/ubuntu linux · debian/debian linux · redhat/enterprise linux
- Source
- secalert@redhat.com
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
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securityfocus.com/bid/70644
- http://www.ubuntu.com/usn/USN-2389-1Vendor Advisory
- https://bugzilla.redhat.com/attachment.cgi?id=944444&action=diff
- https://bugzilla.redhat.com/show_bug.cgi?id=1149084
- https://support.apple.com/kb/HT205030Vendor Advisory
- https://support.apple.com/kb/HT205031Vendor Advisory
- https://www.ncsc.nl/actueel/nieuwsberichten/kwetsbaarheid-ontdekt-in-libxml2.html
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.