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    CVE-2008-4409

    libxml2 2.7.0 and 2.7.1 does not properly handle "predefined entities definitions" in entities, which allows context-dependent attackers to cause a denial of service (memory consumption and application crash), as demonstrated by use of xmllint on a certain XML document, a different vulnerability than CVE-2003-1564 and CVE-2008-3281.

    Published:Oct 2, 2008
    Last Modified:Apr 23, 2026
    EPS:Oct 3, 2008
    EPSS Score:0.11297
    CVSS Score:5

    Affected Products

    Vendor
    Xmlsoft
    Product
    Libxml2

    Exploits

    http://bugzilla.gnome.org/show_bug.cgi?id=554660http://bugzilla.gnome.org/show_bug.cgi?id=554660https://www.exploit-db.com/exploits/32454

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-86144 (CVSS 5.6) — In xinclude in libxml2 before 2.15.4, xmlXIncludeProcess and xmlXIncludeProcessTree do not propagate parseFlag…
    CVE-2026-86143 (CVSS 6.9) — In xmlIO in libxml2 before 2.15.4, an inconsistency in xmlOutputWriteCallback and xmlBufUse causes negative le…
    CVE-2026-86142 (CVSS 6.9) — In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval …
    CVE-2026-86141 (CVSS 2.9) — xmlregexp in libxml2 before 2.15.4 has a NULL pointer dereference in xmlRegNewParserCtxt after a strdup failur…
    CVE-2026-86140 (CVSS 8) — In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow.…
    CVE-2026-86139 (CVSS 6.9) — In libxml2 before 2.15.4, xmlURIEscapeStr in uri.c has an integer overflow.…
    CVE-2026-86138 (CVSS 6.9) — In libxml2 before 2.15.4, xmlDictAddQString in dict.c has an integer overflow and resultant heap-based buffer …
    CVE-2026-86137 (CVSS 2.9) — In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the N…
    CVE-2026-11979 (CVSS 1.8) — libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --she…
    CVE-2026-6732 (CVSS 6.5) — A flaw was found in libxml2. This vulnerability occurs when the library processes a specially crafted XML Sche…

    References

    http://bugzilla.gnome.org/show_bug.cgi?id=554660
    http://lists.apple.com/archives/security-announce/2009/Jun/msg00005.html
    http://lists.apple.com/archives/security-announce/2009/jun/msg00002.html
    http://openwall.com/lists/oss-security/2008/10/02/4
    http://secunia.com/advisories/32130
    http://secunia.com/advisories/32175
    http://secunia.com/advisories/32974
    http://secunia.com/advisories/35379
    http://security.gentoo.org/glsa/glsa-200812-06.xml
    http://support.apple.com/kb/HT3613
    http://support.apple.com/kb/HT3639
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:212
    http://www.securityfocus.com/bid/31555
    http://www.vupen.com/english/advisories/2009/1522
    http://www.vupen.com/english/advisories/2009/1621
    https://exchange.xforce.ibmcloud.com/vulnerabilities/45633
    https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00125.html
    https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00130.html
    http://bugzilla.gnome.org/show_bug.cgi?id=554660
    http://lists.apple.com/archives/security-announce/2009/Jun/msg00005.html
    http://lists.apple.com/archives/security-announce/2009/jun/msg00002.html
    http://openwall.com/lists/oss-security/2008/10/02/4
    http://secunia.com/advisories/32130
    http://secunia.com/advisories/32175
    http://secunia.com/advisories/32974
    http://secunia.com/advisories/35379
    http://security.gentoo.org/glsa/glsa-200812-06.xml
    http://support.apple.com/kb/HT3613
    http://support.apple.com/kb/HT3639
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:212
    http://www.securityfocus.com/bid/31555
    http://www.vupen.com/english/advisories/2009/1522
    http://www.vupen.com/english/advisories/2009/1621
    https://exchange.xforce.ibmcloud.com/vulnerabilities/45633
    https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00125.html
    https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00130.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