UBUNTU-CVE-2015-7942

The xmlParseConditionalSections function in parser.c in libxml2 does not properly skip intermediary entities when it stops parsing invalid input, which allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted XML data, a different vulnerability than CVE-2015-7941.

References

Affected packages

Ubuntu:14.04:LTS / libxml2

Package

Name: libxml2
Purl: pkg:deb/ubuntu/libxml2@2.9.1+dfsg1-3ubuntu4.5?arch=source&distro=trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.9.1+dfsg1-3ubuntu4.5

Affected versions

2.*

2.9.1+dfsg1-3ubuntu2

2.9.1+dfsg1-3ubuntu3

2.9.1+dfsg1-3ubuntu4

2.9.1+dfsg1-3ubuntu4.1

2.9.1+dfsg1-3ubuntu4.2

2.9.1+dfsg1-3ubuntu4.3

2.9.1+dfsg1-3ubuntu4.4

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.9.1+dfsg1-3ubuntu4.5",
            "binary_name": "libxml2"
        },
        {
            "binary_version": "2.9.1+dfsg1-3ubuntu4.5",
            "binary_name": "libxml2-dev"
        },
        {
            "binary_version": "2.9.1+dfsg1-3ubuntu4.5",
            "binary_name": "libxml2-utils"
        },
        {
            "binary_version": "2.9.1+dfsg1-3ubuntu4.5",
            "binary_name": "python-libxml2"
        }
    ]
}