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Security Advisory

USN-2994-1 libxml2 vulnerabilities

USN-2994-1 libxml2 vulnerabilities

Severity

Medium

Vendor

GNOME XML library, Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 14.04 LTS

Description

Multiple researchers discovered that libxml2 incorrectly handled certain malformed documents. 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. (CVE-2015-8806, CVE-2016-2073, CVE-2016-3627, CVE-2016-3705, CVE-2016-4447, CVE-2016-1762, CVE-2016-1834, CVE-2016-1833, CVE-2016-1838, CVE-2016-1839, CVE-2016-1835, CVE-2016-1837, CVE-2016-1836, CVE-2016-1840, CVE-2016-4483)

It was discovered that libxml2 would load certain XML external entities. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly obtain access to arbitrary files or cause resource consumption. (CVE-2016-4449)

Affected Products and Versions

Severity is medium unless otherwise noted.

  • All versions of Cloud Foundry cflinuxfs2 prior to v.1.66.0

Mitigation

Users of affected versions should apply the following mitigation:

  • The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 v.1.66.0 or later versions

Credit

Gustavo Grieco, Mateusz Jurczyk, Wei Lei, Liu Yang

References

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR

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