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 (7)
Core 7
Core References
Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/09/20/2
Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/IPJLLTJCSDJJII7IIZPLTBQNWP7MZH7F/
Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/U35OARLQCPMVCBBPHWBXY5M6XJLD2TZ5/
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/VSK5V4W4OHPM3JTJGWAQD6CZW7SFD75B/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20231013-0004/
Third Party Advisory
https://www.debian.org/security/2023/dsa-5504
Vendor Advisory vendor-advisory
https://kb.isc.org/docs/cve-2023-4236
Scores
CVSS v3
7.5
EPSS
0.0215
EPSS Percentile
79.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-617
Status
published
Products (13)
debian/debian_linux
10.0
debian/debian_linux
11.0
fedoraproject/fedora
37
fedoraproject/fedora
38
fedoraproject/fedora
39
isc/bind
9.18.11 s1
isc/bind
9.18.18 s1
isc/bind
9.18.0 - 9.18.18
netapp/h300s_firmware
netapp/h410c_firmware
... and 3 more
Published
Sep 20, 2023
Tracked Since
Feb 18, 2026