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OpenAdvisories
High RHSA-2023:3583 1 CVE

Red Hat Security Advisory: c-ares security update

Published Sep 13, 2024 · Updated Jun 29, 2026

Ecosystem: Red Hat

Fixed packages 6

ReleasePackageFixed in
Red Hat · RHEL 9.0 EUS rhel_eus:9.0::appstream c-ares-debuginfo 0:1.17.1-5.el9_0.1
Red Hat · RHEL 9.0 EUS rhel_eus:9.0::appstream c-ares-debugsource 0:1.17.1-5.el9_0.1
Red Hat · RHEL 9.0 EUS rhel_eus:9.0::appstream c-ares-devel 0:1.17.1-5.el9_0.1
Red Hat · RHEL 9.0 EUS rhel_eus:9.0::baseos c-ares 0:1.17.1-5.el9_0.1
Red Hat · RHEL 9.0 EUS rhel_eus:9.0::baseos c-ares-debuginfo 0:1.17.1-5.el9_0.1
Red Hat · RHEL 9.0 EUS rhel_eus:9.0::baseos c-ares-debugsource 0:1.17.1-5.el9_0.1

Vulnerabilities 1

  • High 7.5
    CVE-2023-32067

    0-byte UDP payload DoS in c-ares

    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 i…

    c-ares c-ares nodejs nodejs18 Debian Ubuntu Azure Linux Wolfi

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2209502
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_3583.json
  • report
    https://access.redhat.com/security/cve/CVE-2023-32067
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-32067
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-32067
  • article
    https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc