high
7.5
CWE
400
Advisory Published
CVE Published
Updated

CVE-2023-32067

First published: Wed May 24 2023(Updated: )

<a href="https://access.redhat.com/security/cve/CVE-2023-32067">CVE-2023-32067</a>. 0-byte UDP payload causes Denial of Service (<a href="https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc">https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc</a>)

Credit: security-advisories@github.com security-advisories@github.com security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
C-ares Project C-ares<1.19.1
Fedoraproject Fedora=37
Fedoraproject Fedora=38
IBM QRadar SIEM<=7.5.0 - 7.5.0 UP6
Debian Debian Linux=10.0
Debian Debian Linux=11.0
ubuntu/c-ares<1.14.0-1ubuntu0.2+
1.14.0-1ubuntu0.2+
ubuntu/c-ares<1.10.0-3ubuntu0.2+
1.10.0-3ubuntu0.2+
ubuntu/c-ares<1.19.1<1.18.1-3
1.19.1
1.18.1-3
ubuntu/c-ares<1.15.0-1ubuntu0.3
1.15.0-1ubuntu0.3
ubuntu/c-ares<1.18.1-1ubuntu0.22.04.2
1.18.1-1ubuntu0.22.04.2
ubuntu/c-ares<1.18.1-1ubuntu0.22.10.2
1.18.1-1ubuntu0.22.10.2
ubuntu/c-ares<1.18.1-2ubuntu0.1
1.18.1-2ubuntu0.1
debian/c-ares<=1.14.0-1+deb10u1
1.14.0-1+deb10u4
1.17.1-1+deb11u3
1.18.1-3
1.26.0-1

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-32067?

    CVE-2023-32067 is a vulnerability in the c-ares asynchronous resolver library that allows an attacker to cause denial of service by sending a malformed UDP packet.

  • What is the severity of CVE-2023-32067?

    CVE-2023-32067 has a severity rating of 7 (high).

  • How does CVE-2023-32067 affect c-ares?

    CVE-2023-32067 affects c-ares versions up to 1.19.1.

  • How can I fix CVE-2023-32067?

    To fix CVE-2023-32067, you should update c-ares to version 1.19.1 or higher.

  • Where can I find more information about CVE-2023-32067?

    You can find more information about CVE-2023-32067 on the Red Hat security page, the c-ares GitHub security advisories page, and the Bugzilla page.

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