Summary
It was discovered that Bind incorrectly handled certain control channel
messages. A remote attacker with access to the control channel could
possibly use this issue to cause Bind to crash, resulting in a denial of
service. (CVE-2023-3341)
Robert Story discovered that Bind incorrectly handled certain DNS-over-TLS
queries. A remote attacker could possibly use this issue to cause Bind to
crash, resulting in a denial of service. This issue only affected Ubuntu
22.04 LTS, and Ubuntu 23.04. (CVE-2023-4236)
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | bind9 | 1:9.16.1-0ubuntu2.16 |
| Ubuntu · 22.04 LTS 22.04:LTS | bind9 | 1:9.18.12-0ubuntu0.22.04.3 |
Vulnerabilities 2
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High 7.5
A stack exhaustion flaw in control channel code may cause named to terminate unexpectedly
The code that processes control channel messages sent to `named` calls certain functions recursively during packet parsing. Recursion depth is only limited by the maximum accepted packet size; depending on the environment, this may cause the packet-parsing co…
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High 7.5
named may terminate unexpectedly under high DNS-over-TLS query load
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 affect…