libxml2: CPU consumption DoS when performing string substitutions during entities expansion
Published Apr 25, 2013
4.3
MEDIUMCVSS 2.0
EPSS 2.86%
Description
libxml2 2.9.0 and earlier allows context-dependent attackers to cause a denial of service (CPU and memory consumption) via an XML file containing an entity declaration with long replacement text and many references to this entity, aka "internal entity expansion" with linear complexity.
Affected products
No data.
Configuration 1
- ≤ 2.9.0
- 1.7.0
- 1.7.1
- 1.7.2
- 1.7.3
- 1.7.4
- 1.8.0
- 1.8.1
- 1.8.2
- 1.8.3
- 1.8.4
- 1.8.5
- 1.8.6
- 1.8.7
- 1.8.9
- 1.8.10
- 1.8.13
- 1.8.14
- 1.8.16
- 2.0.0
- 2.1.0
- 2.1.1
- 2.2.0
- 2.2.0
- 2.2.1
- 2.2.2
- 2.2.3
- 2.2.4
- 2.2.5
- 2.2.6
- 2.2.7
- 2.2.8
- 2.2.9
- 2.2.10
- 2.2.11
- 2.3.0
- 2.3.1
- 2.3.2
- 2.3.3
- 2.3.4
- 2.3.5
- 2.3.6
- 2.3.7
- 2.3.8
- 2.3.9
- 2.3.10
- 2.3.11
- 2.3.12
- 2.3.13
- 2.3.14
- 2.4.1
- 2.4.2
- 2.4.3
- 2.4.4
- 2.4.5
- 2.4.6
- 2.4.7
- 2.4.8
- 2.4.9
- 2.4.10
- 2.4.11
- 2.4.12
- 2.4.13
- 2.4.14
- 2.4.15
- 2.4.16
- 2.4.17
- 2.4.18
- 2.4.19
- 2.4.20
- 2.4.21
- 2.4.22
- 2.4.23
- 2.4.24
- 2.4.25
- 2.4.26
- 2.4.27
- 2.4.28
- 2.4.29
- 2.4.30
- 2.5.0
- 2.5.4
- 2.5.7
- 2.5.8
- 2.5.10
- 2.5.11
- 2.6.0
- 2.6.1
- 2.6.2
- 2.6.3
- 2.6.4
- 2.6.5
- 2.6.6
- 2.6.7
- 2.6.8
- 2.6.9
- 2.6.11
- 2.6.12
- 2.6.13
- 2.6.14
- 2.6.16
- 2.6.17
- 2.6.18
- 2.6.20
- 2.6.21
- 2.6.22
- 2.6.23
- 2.6.24
- 2.6.25
- 2.6.26
- 2.6.27
- 2.6.28
- 2.6.29
- 2.6.30
- 2.6.31
- 2.6.32
- 2.7.0
- 2.7.1
- 2.7.2
- 2.7.3
- 2.7.4
- 2.7.5
- 2.7.6
- 2.7.7
- 2.7.8
- 2.9.0
Configuration 2
- 8.04
- 10.04
- 11.10
- 12.04
- 12.10
No data.
Red Hat Enterprise Linux 5
libxml2-0:2.6.26-2.1.21.el5_9.1
Fixed · RHSA-2013:0581
Red Hat Enterprise Linux 6
libxml2-0:2.7.6-12.el6_4.1
Fixed · RHSA-2013:0581
Red Hat Enterprise Linux 6
mingw32-libxml2
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | libxml2-0:2.6.26-2.1.21.el5_9.1 | Fixed | RHSA-2013:0581 |
| Red Hat Enterprise Linux 6 | libxml2-0:2.7.6-12.el6_4.1 | Fixed | RHSA-2013:0581 |
| Red Hat Enterprise Linux 6 | mingw32-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.
AV:N/AC:M/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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.86% (0.02856) | 86.25th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.97% (0.02972) | 85.44th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.24% (0.00238) | 44.95th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.26% (0.01257) | 86.17th | v3 (v2023.03.01) |
| May 19, 2024 | 1.26% (0.01257) | 85.54th | v3 (v2023.03.01) |
| Apr 17, 2024 | 1.20% (0.01199) | 84.98th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.20% (0.01199) | 82.98th | 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 (15)
- http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2013-03/msg00112.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2013-03/msg00114.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=142798889927587&w=2 vendor-advisoryx_refsource_HP
- http://secunia.com/advisories/52662 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/55568 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2013/dsa-2652 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:056 vendor-advisoryx_refsource_MANDRIVA
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html x_refsource_CONFIRM
- http://www.ubuntu.com/usn/USN-1782-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2013-0338 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=912400 x_refsource_CONFIRMIssue Tracking
- https://git.gnome.org/browse/libxml2/commit/?id=23f05e0c33987d6605387b300c4be5da2120a7ab x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2013-0338
- https://www.cve.org/CVERecord?id=CVE-2013-0338
Change history (0)
No recorded changes yet.