CVE-2023-4236

Description

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.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-24-319-08

https://www.debian.org/security/2023/dsa-5504

https://security.netapp.com/advisory/ntap-20231013-0004/

https://lists.fedoraproject.org/archives/list/[email protected]/message/VSK5V4W4OHPM3JTJGWAQD6CZW7SFD75B/

https://lists.fedoraproject.org/archives/list/[email protected]/message/U35OARLQCPMVCBBPHWBXY5M6XJLD2TZ5/

https://lists.fedoraproject.org/archives/list/[email protected]/message/IPJLLTJCSDJJII7IIZPLTBQNWP7MZH7F/

https://kb.isc.org/docs/cve-2023-4236

http://www.openwall.com/lists/oss-security/2023/09/20/2

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3