CVE-2023-3341

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.

• CWE-787
• CWE-1325

• http://www.openwall.com/lists/oss-security/2023/09/20/2Mailing List, Patch
• https://kb.isc.org/docs/cve-2023-3341Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2024/01/msg00021.htmlThird Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IPJLLTJCSDJJII7IIZPLTBQNWP7MZH7F/Mailing List
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U35OARLQCPMVCBBPHWBXY5M6XJLD2TZ5/Mailing List
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSK5V4W4OHPM3JTJGWAQD6CZW7SFD75B/Mailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20231013-0003/Third Party Advisory
• https://www.debian.org/security/2023/dsa-5504Third Party Advisory
• http://www.openwall.com/lists/oss-security/2023/09/20/2Mailing List, Patch
• https://kb.isc.org/docs/cve-2023-3341Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2024/01/msg00021.htmlThird Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IPJLLTJCSDJJII7IIZPLTBQNWP7MZH7F/Mailing List
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U35OARLQCPMVCBBPHWBXY5M6XJLD2TZ5/Mailing List
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSK5V4W4OHPM3JTJGWAQD6CZW7SFD75B/Mailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20231013-0003/Third Party Advisory
• https://www.debian.org/security/2023/dsa-5504Third Party Advisory

Published

Sep 20, 2023

Last Modified

Jun 17, 2026

Status

Modified

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