CVE-2023-3341
Description
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 code to run out of available stack memory, causing `named` to terminate unexpectedly. Since each incoming control channel message is fully parsed before its contents are authenticated, exploiting this flaw does not require the attacker to hold a valid RNDC key; only network access to the control channel's configured TCP port is necessary. This issue affects BIND 9 versions 9.2.0 through 9.16.43, 9.18.0 through 9.18.18, 9.19.0 through 9.19.16, 9.9.3-S1 through 9.16.43-S1, and 9.18.0-S1 through 9.18.18-S1.
How to fix
- isc bind9.16.44, 9.18.19, 9.19.17 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| isc bind | 9.2.0 ≤ v < 9.16.44, 9.18.0 ≤ v < 9.18.19, 9.19.0 ≤ v < 9.19.17, 9.9.3, 9.9.12, 9.9.13, 9.10.5, 9.10.7, 9.11.3, 9.11.4, 9.11.5, 9.11.6, 9.11.7, 9.11.8, 9.11.12, 9.11.21, 9.11.27, 9.11.29, 9.11.35, 9.11.37, 9.16.8, 9.16.11, 9.16.12, 9.16.13, 9.16.14, 9.16.21, 9.16.32, 9.16.36, 9.16.43, 9.18.0, 9.18.18 | 9.16.44, 9.18.19, 9.19.17 |
| fedoraproject fedora | 37, 38 | — |
| debian debian_linux | 10.0, 11.0 | — |
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