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high7.5

CVE-2023-3341

The code that processes control channel messages sent to `named` calls certain functions recursively during packet parsing.

Impact

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.

Affected products

VendorProductAffected versions
IscBind
from 9.2.0 before 9.16.44
from 9.18.0 before 9.18.19
from 9.19.0 before 9.19.17
Versions 9.9.3, 9.9.12, 9.9.13
FedoraprojectFedora
Versions 37, 38
DebianDebian Linux
Versions 10.0, 11.0

Weakness classification

CWE-787CWE-1325

References