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  5. CVE-2023-32067

CVE-2023-32067: Uncontrolled Resource Consumption

May 25, 2023 (updated October 31, 2023)

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.

References

  • github.com/c-ares/c-ares/releases/tag/cares-1_19_1
  • github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/
  • nvd.nist.gov/vuln/detail/CVE-2023-32067

Code Behaviors & Features

Detect and mitigate CVE-2023-32067 with GitLab Dependency Scanning

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Affected versions

All versions before 1.19.1

Fixed versions

  • 1.19.1

Solution

Upgrade to version 1.19.1 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Source file

conan/c-ares/CVE-2023-32067.yml

Spotted a mistake? Edit the file on GitLab.

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