High severityNVD Advisory· Published Dec 15, 2015· Updated Jun 17, 2026

CVE-2015-5312

Description

The xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.3 does not properly prevent entity expansion, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted XML data, a different vulnerability than CVE-2014-3660.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
nokogiriRubyGems	>= 1.6.0, < 1.6.7.1	1.6.7.1

Affected products

Microfocus/Icewall Federation Agent
cpe:2.3:a:hp:icewall_federation_agent:3.0:*:*:*:*:*:*:*
Microfocus/IceWall File Manager
cpe:2.3:a:hp:icewall_file_manager:3.0:*:*:*:*:*:*:*
Xmlsoft/Libxml2
cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
Range: <=2.9.2
Apple Inc./Iphone OS
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
Range: <=9.2.1
Apple Inc./Mac OS X
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
Range: <=10.11.3
Apple Inc./tvOS
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
Range: <=9.1
Apple Inc./watchOS
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
Range: <=2.1
Canonical/Ubuntu Linux4 versions
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*+ 3 more
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
Debian/linux2 versions
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Desktop
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Hpc Node
cpe:2.3:o:redhat:enterprise_linux_hpc_node:6.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Workstation
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
ghsa-coords34 versions
pkg:gem/nokogiri pkg:rpm/opensuse/libxml2&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/ruby3.2-rubygem-nokogiri&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/rubygem-nokogiri&distro=openSUSE%20Tumbleweed pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Desktop%2011%20SP3 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Desktop%2011%20SP4 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Desktop%2012 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATA pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Server%2012 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP3 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP3 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012 pkg:rpm/suse/libxml2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1 pkg:rpm/suse/libxml2-python&distro=SUSE%20Linux%20Enterprise%20Desktop%2011%20SP3 pkg:rpm/suse/libxml2-python&distro=SUSE%20Linux%20Enterprise%20Desktop%2011%20SP4 pkg:rpm/suse/libxml2-python&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3 pkg:rpm/suse/libxml2-python&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATA pkg:rpm/suse/libxml2-python&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/libxml2-python&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP3 pkg:rpm/suse/libxml2-python&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/python-libxml2&distro=SUSE%20Linux%20Enterprise%20Desktop%2012 pkg:rpm/suse/python-libxml2&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1 pkg:rpm/suse/python-libxml2&distro=SUSE%20Linux%20Enterprise%20Server%2012 pkg:rpm/suse/python-libxml2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1 pkg:rpm/suse/python-libxml2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/python-libxml2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1
>= 1.6.0, < 1.6.7.1+ 33 more
- (no CPE)range: >= 1.6.0, < 1.6.7.1
- (no CPE)range: < 2.9.4-1.22
- (no CPE)range: < 1.13.9-1.7
- (no CPE)range: < 1.6.8.1-1.3
- (no CPE)range: < 2.7.6-0.34.1
- (no CPE)range: < 2.7.6-0.34.1
- (no CPE)range: < 2.9.1-13.1
- (no CPE)range: < 2.9.1-13.1
- (no CPE)range: < 2.7.6-0.34.1
- (no CPE)range: < 2.7.6-0.34.1
- (no CPE)range: < 2.7.6-0.34.1
- (no CPE)range: < 2.9.1-13.1
- (no CPE)range: < 2.9.1-13.1
- (no CPE)range: < 2.7.6-0.34.1
- (no CPE)range: < 2.7.6-0.34.1
- (no CPE)range: < 2.9.1-13.1
- (no CPE)range: < 2.9.1-13.1
- (no CPE)range: < 2.7.6-0.34.1
- (no CPE)range: < 2.7.6-0.34.1
- (no CPE)range: < 2.9.1-13.1
- (no CPE)range: < 2.9.1-13.1
- (no CPE)range: < 2.7.6-0.34.4
- (no CPE)range: < 2.7.6-0.34.4
- (no CPE)range: < 2.7.6-0.34.4
- (no CPE)range: < 2.7.6-0.34.4
- (no CPE)range: < 2.7.6-0.34.4
- (no CPE)range: < 2.7.6-0.34.4
- (no CPE)range: < 2.7.6-0.34.4
- (no CPE)range: < 2.9.1-13.1
- (no CPE)range: < 2.9.1-13.1
- (no CPE)range: < 2.9.1-13.1
- (no CPE)range: < 2.9.1-13.1
- (no CPE)range: < 2.9.1-13.1
- (no CPE)range: < 2.9.1-13.1

Patches

Vulnerability mechanics

References

lists.apple.com/archives/security-announce/2016/Mar/msg00002.htmlnvdThird Party Advisory
marc.infonvdThird Party AdvisoryWEB
rhn.redhat.com/errata/RHSA-2015-2549.htmlnvdThird Party AdvisoryWEB
rhn.redhat.com/errata/RHSA-2015-2550.htmlnvdThird Party AdvisoryWEB
www.debian.org/security/2015/dsa-3430nvdThird Party AdvisoryWEB
www.ubuntu.com/usn/USN-2834-1nvdThird Party AdvisoryWEB
xmlsoft.org/news.htmlnvdVendor AdvisoryWEB
github.com/advisories/GHSA-xjqg-9jvg-fgx2ghsaADVISORY
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplaynvdThird Party AdvisoryWEB
nvd.nist.gov/vuln/detail/CVE-2015-5312ghsaADVISORY
support.apple.com/HT206166nvdVendor AdvisoryWEB
support.apple.com/HT206167nvdVendor AdvisoryWEB
support.apple.com/HT206168nvdVendor AdvisoryWEB
support.apple.com/HT206169nvdVendor AdvisoryWEB
lists.apple.com/archives/security-announce/2016/Mar/msg00000.htmlnvdWEB
lists.apple.com/archives/security-announce/2016/Mar/msg00004.htmlnvdMailing List
lists.opensuse.org/opensuse-updates/2015-12/msg00120.htmlnvdWEB
lists.opensuse.org/opensuse-updates/2016-01/msg00031.htmlnvdWEB
www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.htmlnvdWEB
www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlnvdWEB
bugzilla.redhat.com/show_bug.cginvdIssue TrackingWEB
git.gnome.org/browse/libxml2/commit/nvdWEB
github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2015-5312.ymlghsaWEB
groups.google.com/forum/ghsaWEB
security.gentoo.org/glsa/201701-37nvdWEB
lists.apple.com/archives/security-announce/2016/Mar/msg00001.htmlnvd
rhn.redhat.com/errata/RHSA-2016-1089.htmlnvd
www.securityfocus.com/bid/79536nvd
www.securitytracker.com/id/1034243nvd

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