CVE-2013-0338

CVE-2013-0338 is a medium-severity vulnerability in Xmlsoft Libxml2 with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

• Severity: Medium (CVSS 2.0 base score 4.3)
• EPSS exploit prediction: 3% (85th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Xmlsoft Libxml2
• Published: 2013-04-25
• Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2013-0338?

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.

How severe is CVE-2013-0338?

CVE-2013-0338 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2013-0338 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-0338?

CVE-2013-0338 primarily affects Xmlsoft Libxml2. In total, 134 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-0338?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-0338 published?

CVE-2013-0338 was published on 2013-04-25 and last updated on 2026-06-16.

References

• http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html
• http://lists.opensuse.org/opensuse-updates/2013-03/msg00112.html
• http://lists.opensuse.org/opensuse-updates/2013-03/msg00114.html
• http://marc.info/?l=bugtraq&m=142798889927587&w=2
• http://secunia.com/advisories/52662
• http://secunia.com/advisories/55568
• http://www.debian.org/security/2013/dsa-2652
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:056
• http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
• http://www.ubuntu.com/usn/USN-1782-1
• https://bugzilla.redhat.com/show_bug.cgi?id=912400
• https://git.gnome.org/browse/libxml2/commit/?id=23f05e0c33987d6605387b300c4be5da2120a7ab

Affected products (134)

• cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.7.0:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.7.3:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.7.4:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.8.0:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.8.1:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.8.2:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.8.3:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.8.4:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.8.5:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.8.6:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.8.7:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.8.9:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.8.10:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.8.13:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.8.14:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:1.8.16:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.2.0:beta:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.2.4:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.2.5:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.2.6:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.2.7:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.2.8:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.2.9:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.2.10:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.2.11:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.3.3:*:*:*:*:*:*:*
• cpe:2.3:a:xmlsoft:libxml2:2.3.4:*:*:*:*:*:*:*

More vulnerabilities in Xmlsoft Libxml2

• CVE-2008-3529 — Critical (CVSS 10.0): Heap-based buffer overflow in the xmlParseAttValueComplex function in parser.c in libxml2 before 2.7.0 allows…
• CVE-2004-0989 — Critical (CVSS 10.0): Multiple buffer overflows in libXML 2.6.12 and 2.6.13 (libxml2), and possibly other versions, may allow remote…
• CVE-2017-7376 — Critical (CVSS 9.8): Buffer overflow in libxml2 allows remote attackers to execute arbitrary code by leveraging an incorrect limit for port…
• CVE-2017-7375 — Critical (CVSS 9.8): A flaw in libxml2 allows remote XML entity inclusion with default parser flags (i.e., when the caller did not request…
• CVE-2017-16931 — Critical (CVSS 9.8): parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the…
• CVE-2016-4658 — Critical (CVSS 9.8): xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS…

All CVEs affecting Xmlsoft Libxml2 →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

• CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
• CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
• CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
• CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
• CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
• CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →