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Unscored USN-2812-1 4 CVEs

libxml2 vulnerabilities

Published Nov 16, 2015 · Updated Apr 22, 2026

Ecosystem: Ubuntu

Summary

Florian Weimer discovered that libxml2 incorrectly handled certain XML
data. If a user or automated system were tricked into opening a specially
crafted document, an attacker could possibly cause resource consumption,
resulting in a denial of service. This issue only affected
Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-1819)

Michal Zalewski discovered that libxml2 incorrectly handled certain XML
data. If a user or automated system were tricked into opening a specially
crafted document, an attacker could possibly cause libxml2 to crash,
resulting in a denial of service. This issue only affected
Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-7941)

Kostya Serebryany discovered that libxml2 incorrectly handled certain XML
data. If a user or automated system were tricked into opening a specially
crafted document, an attacker could possibly cause libxml2 to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2015-7942)

Gustavo Grieco discovered that libxml2 incorrectly handled certain XML
data. If a user or automated system were tricked into opening a specially
crafted document, an attacker could possibly cause libxml2 to crash,
resulting in a denial of service. This issue only affected
Ubuntu 14.04 LTS. (CVE-2015-8035)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · 14.04 LTS 14.04:LTS libxml2 2.9.1+dfsg1-3ubuntu4.5

Vulnerabilities 4

  • Medium —
    CVE-2015-1819

    Nokogiri vulnerable to libxml XML Entity Expansion

    The xmlreader in libxml allows remote attackers to cause a denial of service (memory consumption) via crafted XML data, related to an XML Entity Expansion (XEE) attack.

    libxml2 libxml2 nokogiri Debian Ubuntu RubyGems
  • Unscored —
    CVE-2015-7941

    libxml2 2.9.2 does not properly stop parsing invalid input, which allows context-dependent attackers to cause a denial …

    libxml2 libxml2 Debian Ubuntu
  • Unscored —
    CVE-2015-7942

    The xmlParseConditionalSections function in parser.c in libxml2 does not properly skip intermediary entities when it st…

    libxml2 libxml2 Debian Ubuntu
  • Unscored —
    CVE-2015-8035

    The xz_decomp function in xzlib.c in libxml2 2.9.1 does not properly detect compression errors, which allows context-de…

    libxml2 libxml2 Debian Ubuntu

References

  • report
    https://ubuntu.com/security/CVE-2015-1819
  • report
    https://ubuntu.com/security/CVE-2015-7941
  • report
    https://ubuntu.com/security/CVE-2015-7942
  • report
    https://ubuntu.com/security/CVE-2015-8035