6.5
CVSSv3

CVE-2003-1564

Published: 31/12/2003 Updated: 02/02/2024
CVSS v2 Base Score: 9.3 | Impact Score: 10 | Exploitability Score: 8.6
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 828
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Summary

libxml2, possibly prior to 2.5.0, does not properly detect recursion during entity expansion, which allows context-dependent malicious users to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, aka the "billion laughs attack."

Vulnerability Trend

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xmlsoft libxml2

Vendor Advisories

Debian Bug report logs - #988603 libxml2: CVE-2021-3541: Exponential entity expansion attack bypasses all existing protection mechanisms Package: src:libxml2; Maintainer for src:libxml2 is Debian XML/SGML Group <debian-xml-sgml-pkgs@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: ...
Debian Bug report logs - #952683 snakeyaml: CVE-2017-18640 Package: src:snakeyaml; Maintainer for src:snakeyaml is Debian Java Maintainers <pkg-java-maintainers@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Thu, 27 Feb 2020 14:21:02 UTC Severity: important Tags: security, upstr ...
Debian Bug report logs - #951066 qtbase-opensource-src: CVE-2015-9541 Package: src:qtbase-opensource-src; Maintainer for src:qtbase-opensource-src is Debian Qt/KDE Maintainers <debian-qt-kde@listsdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Mon, 10 Feb 2020 15:27:01 UTC Severity: importan ...