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Debian Security Advisory DSA 4086-1 (libxml2 - security update)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

6.8

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

6 years ago

Modified

Modified

5 years ago

Summary

Nick Wellnhofer discovered that certain function calls inside XPath predicates can lead to use-after-free and double-free errors when executed by libxml2's XPath engine via an XSLT transformation.

Affected Software

Affected Software

libxml2 on Debian Linux

Detection Method

Detection Method

This check tests the installed software version using the apt package manager.

Solution

Solution

For the oldstable distribution (jessie), this problem has been fixed in version 2.9.1+dfsg1-5+deb8u6. For the stable distribution (stretch), this problem has been fixed in version 2.9.4+dfsg1-2.2+deb9u2. We recommend that you upgrade your libxml2 packages. For the detailed security status of libxml2 please refer to its security tracker page linked in the references.

Common Vulnerabilities and Exposures (CVE)