Description
Format string vulnerability in libxml2 before 2.9.4 allows attackers to have unspecified impact via format string specifiers in unknown vectors.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libxml2 | 2.9.4+dfsg1-1 | — |
| Debian 13 | libxml2 | 2.9.4+dfsg1-1 | — |
| Debian 12 | libxml2 | 2.9.4+dfsg1-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | libxml2 | 2.9.3+dfsg1-1ubuntu0.2 | USN-3235-1 |
| Ubuntu 14.04 LTS | libxml2 | 2.9.1+dfsg1-3ubuntu4.9 | USN-3235-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | libxml2 +3 | 2.9.1-6.el7_2.3 | RHSA-2016:1292 |
| RHEL 6 | libxml2 +3 | 2.7.6-21.el6_8.1 | RHSA-2016:1292 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | libxml2 +1 | 2.9.1-24.1 | SUSE-SU-2016:1538-1 |
| SLES 12 | libxml2 +1 | 2.9.1-24.1 | SUSE-SU-2016:1538-1 |
| SLES 11 SP4 | libxml2 | 2.7.6-0.44.1 | SUSE-SU-2016:1604-1 |
| SLES 11 SP4 | libxml2-python | 2.7.6-0.44.4 | SUSE-SU-2016:1604-1 |
| SLES 11 SP3 | libxml2 | 2.7.6-0.44.1 | SUSE-SU-2016:1604-1 |
| SLES 11 SP3 | libxml2-python | 2.7.6-0.44.4 | SUSE-SU-2016:1604-1 |
| SLES 11 SP2 | libxml2 | 2.7.6-0.44.1 | SUSE-SU-2016:1604-1 |
| SLES 11 SP2 | libxml2-python | 2.7.6-0.44.4 | SUSE-SU-2016:1604-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | libxml2 +1 | 2.9.1-24.1 | SUSE-SU-2016:1538-1 |
| SLES for SAP 12 | libxml2 +1 | 2.9.1-24.1 | SUSE-SU-2016:1538-1 |
| SLES for SAP 11 SP4 | libxml2 | 2.7.6-0.44.1 | SUSE-SU-2016:1604-1 |
| SLES for SAP 11 SP4 | libxml2-python | 2.7.6-0.44.4 | SUSE-SU-2016:1604-1 |
| SUSE OpenStack Cloud 5 | libxml2 | 2.7.6-0.44.1 | SUSE-SU-2016:1604-1 |
| SUSE OpenStack Cloud 5 | libxml2-python | 2.7.6-0.44.4 | SUSE-SU-2016:1604-1 |
| SUSE Manager Proxy 2.1 | libxml2 | 2.7.6-0.44.1 | SUSE-SU-2016:1604-1 |
| SUSE Manager Proxy 2.1 | libxml2-python | 2.7.6-0.44.4 | SUSE-SU-2016:1604-1 |
| SUSE Manager 2.1 | libxml2 | 2.7.6-0.44.1 | SUSE-SU-2016:1604-1 |
| SUSE Manager 2.1 | libxml2-python | 2.7.6-0.44.4 | SUSE-SU-2016:1604-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | libxml2 +3 | 2.9.1-6.0.1.el7_2.3 | ELSA-2016-1292 |
Advisories 7
- RHSA-2016:1292 Red Hat Security Advisory: libxml2 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- USN-3235-1 libxml2 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2016:1538-1 Security update for libxml2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1604-1 Security update for libxml2 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-3384 libxml2: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 30, 2025
- WID-SEC-2023-1614 Tenable Security Nessus Network Monitor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 25, 2023
- ELSA-2016-1292 Important: libxml2 security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 23, 2016
References
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- https://kc.mcafee.com/corporate/index?page=content&id=SB10170
- SSA:2016-148-01 vendor-advisory
- RHSA-2016:1292 vendor-advisory
- [oss-security] 20160525 3 libxml2 issues mailing-list
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- 90856 vdb-entry
- https://git.gnome.org/browse/libxml2/commit/?id=4472c3a5a5b516aaf59b89be602fbce52756c3e9
- APPLE-SA-2016-07-18-4 vendor-advisory
- APPLE-SA-2016-07-18-3 vendor-advisory
- APPLE-SA-2016-07-18-2 vendor-advisory
- http://xmlsoft.org/news.html
- https://support.apple.com/HT206901
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
- APPLE-SA-2016-07-18-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1338700
- APPLE-SA-2016-07-18-6 vendor-advisory
- https://www.tenable.com/security/tns-2016-18
- RHSA-2016:2957 vendor-advisory
- https://support.apple.com/HT206905
- 1036348 vdb-entry
- https://support.apple.com/HT206903
- https://support.apple.com/HT206902
- https://support.apple.com/HT206904
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05194709
- https://support.apple.com/HT206899
- https://git.gnome.org/browse/libxml2/commit/?id=502f6a6d08b08c04b3ddfb1cd21b2f699c1b7f5b