libxml2: DoS caused by incorrect error detection during XZ decompression
Published Nov 18, 2015
2.6
LOWCVSS 2.0
EPSS 3.26%
Description
The xz_decomp function in xzlib.c in libxml2 2.9.1 does not properly detect compression errors, which allows context-dependent attackers to cause a denial of service (process hang) via crafted XML data.
Affected products
No data.
No data.
Red Hat Ansible Tower 3.5 for RHEL 7
ansible-tower-35/ansible-tower:3.5.6-1
Fixed · RHBA-2020:1539
Red Hat Ansible Tower 3.6 for RHEL 7
ansible-tower-36/ansible-tower:3.6.4-1
Fixed · RHBA-2020:1540
Red Hat Enterprise Linux 7
libxml2-0:2.9.1-6.el7.4
Fixed · RHSA-2020:1190
Red Hat JBoss Web Server 3.0
libxml2
Fixed · RHSA-2016:1089
Red Hat Enterprise Linux 5
libxml2
Not affected
Red Hat Enterprise Linux 6
libxml2
Not affected
Red Hat JBoss Enterprise Web Server 2
libxml2
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Ansible Tower 3.5 for RHEL 7 | ansible-tower-35/ansible-tower:3.5.6-1 | Fixed | RHBA-2020:1539 |
| Red Hat Ansible Tower 3.6 for RHEL 7 | ansible-tower-36/ansible-tower:3.6.4-1 | Fixed | RHBA-2020:1540 |
| Red Hat Enterprise Linux 7 | libxml2-0:2.9.1-6.el7.4 | Fixed | RHSA-2020:1190 |
| Red Hat JBoss Web Server 3.0 | libxml2 | Fixed | RHSA-2016:1089 |
| Red Hat Enterprise Linux 5 | libxml2 | Not affected | n/a |
| Red Hat Enterprise Linux 6 | libxml2 | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 2 | libxml2 | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of libxml2 as shipped with Red Hat Enterprise Linux 5 and 6 as they did not include support for LZMA compression support.
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.
AV:N/AC:H/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.26% (0.03261) | 87.96th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.20% (0.03199) | 86.42th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.51% (0.01514) | 79.47th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.81% (0.04808) | 82.10th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.47% (0.01473) | 79.62th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.08% (0.01084) | 84.97th | v3 (v2023.03.01) |
| May 3, 2024 | 0.97% (0.00970) | 83.24th | v3 (v2023.03.01) |
| Jul 6, 2023 | 0.97% (0.00970) | 81.23th | v3 (v2023.03.01) |
| Apr 30, 2023 | 0.89% (0.00894) | 80.33th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.99% (0.00989) | 81.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | 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) |
References (29)
- 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_APPLE
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.html vendor-advisoryx_refsource_APPLE
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177341.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177381.html vendor-advisoryx_refsource_FEDORA
- 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://rhn.redhat.com/errata/RHSA-2016-1089.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3430 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2015/11/02/2 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2015/11/02/4 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2015/11/03/1 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/77390 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1034243 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2812-1 vendor-advisoryx_refsource_UBUNTU
- http://xmlsoft.org/news.html x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2015-8035 Vendor Advisory
- https://bugzilla.gnome.org/show_bug.cgi?id=757466 x_refsource_CONFIRMExploit
- https://bugzilla.redhat.com/show_bug.cgi?id=1277146 Issue Tracking
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05111017 x_refsource_CONFIRM
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2015-8035
- https://security.gentoo.org/glsa/201701-37 vendor-advisoryx_refsource_GENTOO
- https://support.apple.com/HT206166 x_refsource_CONFIRM
- https://support.apple.com/HT206167 x_refsource_CONFIRM
- https://support.apple.com/HT206168 x_refsource_CONFIRM
- https://support.apple.com/HT206169 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2015-8035
Change history (0)
No recorded changes yet.