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    CVE-2013-4520

    xslt.c in libxslt before 1.1.25 allows context-dependent attackers to cause a denial of service (crash) via a stylesheet that embeds a DTD, which causes a structure to be accessed as a different type. NOTE: this issue is due to an incomplete fix for CVE-2012-2825.

    Published:Sep 16, 2009
    Last Modified:Apr 11, 2025
    EPS:Dec 14, 2013
    EPSS Score:0.01432
    CVSS Score:4.3

    Affected Products

    Vendor
    Xmlsoft
    Product
    Libxslt

    Exploits

    https://bugzilla.novell.com/show_bug.cgi?id=849019https://gitorious.org/libxslt/libxslt/commit/7089a62b8f133b42a2981cf1f920a8b3fe9a8caahttps://bugzilla.novell.com/show_bug.cgi?id=849019https://gitorious.org/libxslt/libxslt/commit/7089a62b8f133b42a2981cf1f920a8b3fe9a8caa

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-7424 (CVSS 7.5) — A flaw was found in the libxslt library. The same memory field, psvi, is used for both stylesheet and input da…
    CVE-2024-55549 (CVSS 7.8) — xsltGetInheritedNsList in libxslt before 1.1.43 has a use-after-free issue related to exclusion of result pref…
    CVE-2025-24855 (CVSS 7.8) — numbers.c in libxslt before 1.1.43 has a use-after-free because, in nested XPath evaluations, an XPath context…
    CVE-2022-29824 (CVSS 6.5) — In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don't c…
    CVE-2021-30560 (CVSS 8.8) — Use after free in Blink XSLT in Google Chrome prior to 91.0.4472.164 allowed a remote attacker to potentially …
    CVE-2019-18197 (CVSS 7.5) — In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances. …
    CVE-2019-13118 (CVSS 5.3) — In numbers.c in libxslt 1.1.33, a type holding grouping characters of an xsl:number instruction was too narrow…
    CVE-2019-13117 (CVSS 5.3) — In numbers.c in libxslt 1.1.33, an xsl:number with certain format strings could lead to a uninitialized read i…
    CVE-2019-5815 (CVSS 7.5) — Type confusion in xsltNumberFormatGetMultipleLevel prior to libxslt 1.1.33 could allow attackers to potentiall…
    CVE-2019-11068 (CVSS 9.8) — libxslt through 1.1.33 allows bypass of a protection mechanism because callers of xsltCheckRead and xsltCheckW…

    References

    http://seclists.org/oss-sec/2013/q4/238
    http://seclists.org/oss-sec/2013/q4/239
    http://secunia.com/advisories/56072
    http://www.osvdb.org/99671
    https://bugzilla.novell.com/show_bug.cgi?id=849019
    https://gitorious.org/libxslt/libxslt/commit/7089a62b8f133b42a2981cf1f920a8b3fe9a8caa
    https://www.suse.com/support/update/announcement/2013/suse-su-20131654-1.html
    https://www.suse.com/support/update/announcement/2013/suse-su-20131656-1.html
    http://seclists.org/oss-sec/2013/q4/238
    http://seclists.org/oss-sec/2013/q4/239
    http://secunia.com/advisories/56072
    http://www.osvdb.org/99671
    https://bugzilla.novell.com/show_bug.cgi?id=849019
    https://gitorious.org/libxslt/libxslt/commit/7089a62b8f133b42a2981cf1f920a8b3fe9a8caa
    https://www.suse.com/support/update/announcement/2013/suse-su-20131654-1.html
    https://www.suse.com/support/update/announcement/2013/suse-su-20131656-1.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High