7.5
High
CVE-2023-4236 A flaw in the networking code handling DNS-over-TLS queries may cause `named` to terminate unexpectedly due to an…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| BIND 9 9.18 | 9.18.0 → 9.18.18 | No fix stated |
Other CVEs of BIND 9
The 87 CVEs of BIND 9 →
CVE-2026-97313
A recursive BIND server that receives a query with recursion desired (RD=1) followed by a non-recursive query (RD=0) may…
7.5
High
CVE-2026-96888
A BIND resolver that is configured with both a "redirect" zone and "qname-minimization strict" may abort with an…
7.5
High
CVE-2026-94300
Replaying GSS-TSIG signed UDP messages can result in memory corruption in "`named`"
8.1
High
CVE-2026-19630
In a BIND resolver, inbound DNS protocol messages with a particular structure will result in additional processing, with…
7.5
High