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Ubuntu: (Multiple Advisories) (CVE-2023-32067): c-ares vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2023-32067): c-ares vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
05/25/2023
Created
06/15/2023
Added
06/15/2023
Modified
11/15/2024

Description

c-ares is an asynchronous resolver library. c-ares is vulnerable to denial of service. If a target resolver sends a query, the attacker forges a malformed UDP packet with a length of 0 and returns them to the target resolver. The target resolver erroneously interprets the 0 length as a graceful shutdown of the connection. This issue has been patched in version 1.19.1.

Solution(s)

  • ubuntu-pro-upgrade-libc-ares2

References

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