7.5
High
CVE-2023-32067 c-ares is an asynchronous resolver library
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| c-ares 1.19 | earliest → < 1.19.1 | 1.19.1 |
| fedora | 38 | No fix stated |
| debian_linux | 11.0 | No fix stated |
| debian_linux | 10.0 | No fix stated |
References
- github.com github.com
- github.com github.com
- lists.fedoraproject.org lists.fedoraproject.org
- lists.fedoraproject.org lists.fedoraproject.org
- www.debian.org www.debian.org
- lists.debian.org lists.debian.org
- security.gentoo.org security.gentoo.org
- security.netapp.com security.netapp.com
Timeline
- Published
- Last modified