Reachable Assertion Affecting bind9 package, versions <1:9.18.19-1~deb12u1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-DEBIAN12-BIND9-5912041
  • published20 Sept 2023
  • disclosed20 Sept 2023

Introduced: 20 Sep 2023

CVE-2023-4236  (opens in a new tab)
CWE-617  (opens in a new tab)

How to fix?

Upgrade Debian:12 bind9 to version 1:9.18.19-1~deb12u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind9 package and not the bind9 package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

A flaw in the networking code handling DNS-over-TLS queries may cause named to terminate unexpectedly due to an assertion failure. This happens when internal data structures are incorrectly reused under significant DNS-over-TLS query load. This issue affects BIND 9 versions 9.18.0 through 9.18.18 and 9.18.11-S1 through 9.18.18-S1.

CVSS Scores

version 3.1