vulnerability
Amazon Linux AMI: CVE-2023-32067: Security patch for c-ares (ALAS-2023-1770)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | 2023-05-25 | 2023-07-04 | 2025-05-21 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
2023-05-25
Added
2023-07-04
Modified
2025-05-21
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
amazon-linux-upgrade-c-ares
References
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