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 large number of nested entity references, a variant of the "billion laughs" attack.
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P- EPSS score
- 3.8% (90th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2014-3613)
- Published
- November 4, 2014
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2014-3613 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- apple / mac os x
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- debian / debian linux
- redhat / enterprise linux
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
- xmlsoft / libxml2
and 66 more…
Certified products that may be affected
9 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Red Hat Enterprise Linux libgcrypt Cryptographic Module v4.0 [1] and Red Hat Enterprise Linux libgcrypt Cryptographic Module v5.0 [2] - Red Hat®, Inc. - FIPS 140 2657 - historical
- Red Hat Enterprise Linux 5 OpenSSH-Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 1384 - historical
- Red Hat Enterprise Linux 5 OpenSSH Client Cryptographic Module - Red Hat®, Inc. - FIPS 140 1385 - historical
- Red Hat Enterprise Linux 5 OpenSwan Cryptographic Module - Red Hat®, Inc. - FIPS 140 1386 - historical
- Red Hat Enterprise Linux 5 Kernel Crypto API Cryptographic Module - Red Hat®, Inc. - FIPS 140 1387 - historical
See all 9 in the Security Certifications Explorer.
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/2014/10/17/7(Patch)
- 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-2389-1(Vendor 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/HT205030(Vendor Advisory)
- https://support.apple.com/kb/HT205031(Vendor Advisory)
- https://www.ncsc.nl/actueel/nieuwsberichten/kwetsbaarheid-ontdekt-in-libxml2.html
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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