CVE-2023-3341 (GCVE-0-2023-3341)

Vulnerability from cvelistv5 – Published: 2023-09-20 12:32 – Updated: 2025-12-02 20:15
VLAI?
Title
A stack exhaustion flaw in control channel code may cause named to terminate unexpectedly
Summary
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.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1325 - Improperly Controlled Sequential Memory Allocation
Assigner
isc
References
Impacted products
Vendor Product Version
ISC BIND 9 Affected: 9.2.0 , ≤ 9.16.43 (custom)
Affected: 9.18.0 , ≤ 9.18.18 (custom)
Affected: 9.19.0 , ≤ 9.19.16 (custom)
Affected: 9.9.3-S1 , ≤ 9.16.43-S1 (custom)
Affected: 9.18.0-S1 , ≤ 9.18.18-S1 (custom)
Create a notification for this product.
Credits
ISC would like to thank Eric Sesterhenn from X41 D-Sec GmbH for bringing this vulnerability to our attention.
Show details on NVD website
To clipboard 

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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