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CVE-2023-3341— A stack exhaustion flaw in control channel code may cause named to terminate unexpectedly

Quick assessment

Affected
ISC BIND 9
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ISC BIND是美国ISC公司的一套实现了DNS协议的开源软件。 ISC BIND 9 9.2.0 到 9.16.43、9.18.0 到 9.18.18、9.19.0 到 9.19.16、9.9.3-S1 到 9.16.43-S1 以及 9.18.0-S1 到 9.18 .18-S1版本存在缓冲区错误漏洞，该漏洞源于处理发送到named的控制通道消息的代码在数据包解析期间递归地调用某些函数，但递归深度仅受最大接受数据包大小的限制，这可能导致数据包解析代码耗尽可用的堆栈内存，导致named意外终止。

CVSS 7.5 · High EPSS 2.85% · P86
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I. Basic Information for CVE-2023-3341

Vulnerability Information
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Vulnerability Title
A stack exhaustion flaw in control channel code may cause named to terminate unexpectedly
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
ISC BIND 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ISC BIND是美国ISC公司的一套实现了DNS协议的开源软件。 ISC BIND 9 9.2.0 到 9.16.43、9.18.0 到 9.18.18、9.19.0 到 9.19.16、9.9.3-S1 到 9.16.43-S1 以及 9.18.0-S1 到 9.18 .18-S1版本存在缓冲区错误漏洞，该漏洞源于处理发送到named的控制通道消息的代码在数据包解析期间递归地调用某些函数，但递归深度仅受最大接受数据包大小的限制，这可能导致数据包解析代码耗尽可用的堆栈内存，导致named意外终止。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ISC BIND 9 9.2.0 ~ 9.16.43 -

II. Public POCs for CVE-2023-3341

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III. Intelligence Information for CVE-2023-3341

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Vendor Advisories for CVE-2023-3341 (2)

Mailing List Discussions for CVE-2023-3341 (5)

Other References for CVE-2023-3341 (1)

IV. Related Vulnerabilities

Same product: BIND 9
Same vendor: ISC

V. Comments for CVE-2023-3341

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