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Debian Security Advisory DSA 3795-1 (bind9 - security update)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

7 years ago

Modified

Modified

2 years ago

Summary

It was discovered that a maliciously crafted query can cause ISC's BIND DNS server (named) to crash if both Response Policy Zones (RPZ) and DNS64 (a bridge between IPv4 and IPv6 networks) are enabled. It is uncommon for both of these options to be used in combination, so very few systems will be affected by this problem in practice. This update also corrects an additional regression caused by the fix for CVE-2016-8864, which was applied in a previous security update.

Affected Software

Affected Software

bind9 on Debian Linux

Detection Method

Detection Method

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

Solution

Solution

For the stable distribution (jessie), this problem has been fixed in version 1:9.9.5.dfsg-9+deb8u10. For the testing (stretch) and unstable (sid) distributions, this problem has been fixed in version 1:9.10.3.dfsg.P4-12. We recommend that you upgrade your bind9 packages.

Common Vulnerabilities and Exposures (CVE)