Debian Security Advisory DSA 3910-1 (knot - security update)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

4.3

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

4 years ago

Modified

Modified

6 months ago

Summary

Clement Berthaux from Synaktiv discovered a signature forgery vulnerability in knot, an authoritative-only DNS server. This vulnerability allows an attacker to bypass TSIG authentication by sending crafted DNS packets to a server.

Affected Software

Affected Software

knot 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 1.6.0-1+deb8u1. For the stable distribution (stretch), this problem has been fixed in version 2.4.0-3+deb9u1. For the testing (buster) and unstable (sid), this problem will be fixed in a later update. We recommend that you upgrade your knot packages.

Common Vulnerabilities and Exposures (CVE)

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