Lucene search

K
gentooGentoo FoundationGLSA-201409-08
HistorySep 19, 2014 - 12:00 a.m.

libxml2: Denial of service

2014-09-1900:00:00
Gentoo Foundation
security.gentoo.org
8

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.024 Low

EPSS

Percentile

89.7%

Background

libxml2 is the XML C parser and toolkit developed for the Gnome project.

Description

A vulnerability in the xmlParserHandlePEReference() function of parser.c, when expanding entity references, can be exploited to consume large amounts of memory and cause a crash or hang.

Impact

A remote attacker may be able to cause Denial of Service via a specially crafted XML file containing malicious attributes.

Workaround

There is no known workaround at this time.

Resolution

All libxml2 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.9.1-r4"
OSVersionArchitecturePackageVersionFilename
Gentooanyalldev-libs/libxml2< 2.9.1-r4UNKNOWN

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.024 Low

EPSS

Percentile

89.7%