HIGH
libxml2: CPU exhaustion when processing specially crafted XML input
Published Dec 15, 2015
7.1
HIGHCVSS 2.0
EPSS 4.50%
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.
Affected products
No data.
Configuration 1
OR
- 12.04
- 14.04
- 15.04
- 15.10
Configuration 2
OR
- 6.0
- 6.0
- 6.0
- 6.0
Configuration 3
Configuration 5
OR
- 3.0
- 3.0
Configuration 6
OR
- 7.0
- 8.0
No data.
Red Hat Enterprise Linux 6
libxml2-0:2.7.6-20.el6_7.1
Fixed · RHSA-2015:2549
Red Hat Enterprise Linux 7
libxml2-0:2.9.1-6.el7_2.2
Fixed · RHSA-2015:2550
Red Hat JBoss Web Server 3.0
libxml2
Fixed · RHSA-2016:1089
Red Hat Enterprise Linux 5
libxml2
Will not fix
Red Hat JBoss Enterprise Web Server 2
libxml2
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | libxml2-0:2.7.6-20.el6_7.1 | Fixed | RHSA-2015:2549 |
| Red Hat Enterprise Linux 7 | libxml2-0:2.9.1-6.el7_2.2 | Fixed | RHSA-2015:2550 |
| Red Hat JBoss Web Server 3.0 | libxml2 | Fixed | RHSA-2016:1089 |
| Red Hat Enterprise Linux 5 | libxml2 | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 2 | libxml2 | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
7.1 HIGH NVD
AV:N/AC:M/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
4.50% 0.04500
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.04500
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 4.50% (0.04500) | 91.20th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.52% (0.04516) | 90.27th | v5 (v2026.06.15) |
| Mar 6, 2026 | 0.83% (0.00828) | 74.22th | v4 (v2025.03.14) |
| Aug 29, 2025 | 2.32% (0.02320) | 84.17th | v4 (v2025.03.14) |
| Jun 29, 2025 | 3.52% (0.03520) | 87.13th | v4 (v2025.03.14) |
| Apr 15, 2025 | 1.67% (0.01672) | 81.02th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.92% (0.02921) | 85.16th | v4 (v2025.03.14) |
| Mar 29, 2025 | 9.03% (0.09028) | 87.57th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.05% (0.03051) | 85.77th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.61% (0.00613) | 79.40th | v3 (v2023.03.01) |
| Apr 11, 2024 | 0.61% (0.00613) | 78.40th | v3 (v2023.03.01) |
| Jan 14, 2024 | 0.61% (0.00613) | 76.39th | v3 (v2023.03.01) |
| Aug 2, 2023 | 0.53% (0.00534) | 74.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.49% (0.00492) | 72.44th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Feb 13, 2023 | 2.69% (0.02686) | 82.39th | v2 (v2022.01.01) |
| Feb 3, 2023 | 3.93% (0.03932) | 85.52th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
Weaknesses (2)
References (31)
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00000.html vendor-advisoryx_refsource_APPLE
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00001.html vendor-advisoryx_refsource_APPLE
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00002.html vendor-advisoryx_refsource_APPLEThird Party Advisory
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.html vendor-advisoryx_refsource_APPLEMailing List
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00120.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2016-01/msg00031.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=145382616617563&w=2 vendor-advisoryx_refsource_HPThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2549.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2550.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1089.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3430 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/79536 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1034243 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2834-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://xmlsoft.org/news.html x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2015-5312 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1276693 x_refsource_CONFIRMIssue Tracking
- https://git.gnome.org/browse/libxml2/commit/?id=69030714cde66d525a8884bda01b9e8f0abf8e1e x_refsource_CONFIRM
- https://github.com/advisories/GHSA-xjqg-9jvg-fgx2 Advisory
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2015-5312.yml
- https://groups.google.com/forum/#!topic/ruby-security-ann/aSbgDiwb24s
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04944172 x_refsource_CONFIRMThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-5312
- https://security.gentoo.org/glsa/201701-37 vendor-advisoryx_refsource_GENTOO
- https://support.apple.com/HT206166 x_refsource_CONFIRMVendor Advisory
- https://support.apple.com/HT206167 x_refsource_CONFIRMVendor Advisory
- https://support.apple.com/HT206168 x_refsource_CONFIRMVendor Advisory
- https://support.apple.com/HT206169 x_refsource_CONFIRMVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2015-5312
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Dec 15, 2015
Updated Aug 6, 2024
Reserved Jul 1, 2015
Link CVE-2015-5312
CISA Vulnrichment
GHSA-XJQG-9JVG-FGX2 Updated n/a