RHSA-2026:42096 Red Hat Security Advisory: c-ares security update

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Oracle Linux 10 : c-ares (ELSA-2026-42096)

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-42096 advisory. 1.34.6-2 - Fix double-free in processtimeouts CVE-2026-33630 Resolves: RHEL-192867 Tenable has extracted the preceding description block directly from the...

RLSA-2026:42096 Important: c-ares security update

The c-ares C library defines asynchronous DNS Domain Name System requests and provides name resolving API. Security Fixes: c-ares: c-ares: Use-after-free / double-free in query-completion handling CVE-2026-33630 For more details about the security issues, including the impact, a CVSS score,...

c-ares security update

An update is available for c-ares. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The c-ares C library defines asynchronous DNS Domain Name System requests and...

AlmaLinux 10 : c-ares (ALSA-2026:42096)

The remote AlmaLinux 10 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:42096 advisory. c-ares: c-ares: Use-after-free / double-free in query-completion handling CVE-2026-33630 Tenable has extracted the preceding description block directly from the...

Important: Red Hat Security Advisory: c-ares security update

An update for c-ares is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

c-ares: c-ares: Use-after-free / double-free in query-completion handling

A flaw was found in c-ares. A use-after-free / double-free vulnerability exists in the query-completion handling path, where a query callback is invoked while the query is still linked in internal lookup structures. A remote attacker can exploit this via aresgetaddrinfo over TCP by sending crafte...

Amazon Linux 2023 : nodejs24, nodejs24-devel, nodejs24-full-i18n (ALAS2023-2026-1980)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1980 advisory. A use-after-free / double-free in c-ares' query-completion handling. Thesame flaw -- a query's callback being invoked while the query is stilllinked in the channel's internal lookup structures -- is...

RHEL 10 : c-ares (RHSA-2026:42096)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:42096 advisory. The c-ares C library defines asynchronous DNS Domain Name System requests and provides name resolving API. Security Fixes: c-ares: c-ares:...

Important: nodejs24

Issue Overview: A use-after-free / double-free in c-ares' query-completion handling. The same flaw -- a query's callback being invoked while the query is still linked in the channel's internal lookup structures -- is present at multiple points in the resend/finish path timeout handling, response...

Important: nodejs22

Issue Overview: A use-after-free / double-free in c-ares' query-completion handling. The same flaw -- a query's callback being invoked while the query is still linked in the channel's internal lookup structures -- is present at multiple points in the resend/finish path timeout handling, response...

Fedora 43 : c-ares (2026-d70d93fcd7)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-d70d93fcd7 advisory. 1.34.7 accidentally broke the API compatibility, this is fixed in 1.34.8. ---- - update to 1.34.7 - fixes CVE-2026-33630 GHSA-6wfj-rwm7-3542 and...

Amazon Linux 2023 : nodejs22, nodejs22-devel, nodejs22-full-i18n (ALAS2023-2026-1981)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1981 advisory. A use-after-free / double-free in c-ares' query-completion handling. Thesame flaw -- a query's callback being invoked while the query is stilllinked in the channel's internal lookup structures -- is...

ALSA-2026:42096 Important: c-ares security update

The c-ares C library defines asynchronous DNS Domain Name System requests and provides name resolving API. Security Fixes: c-ares: c-ares: Use-after-free / double-free in query-completion handling CVE-2026-33630 For more details about the security issues, including the impact, a CVSS score,...

[SECURITY] Fedora 44 Update: c-ares-1.34.7-1.fc44

c-ares is a C library that performs DNS requests and name resolves asynchronously. c-ares is a fork of the library named 'ares', written by Greg Hudson at MIT...

Fedora 44 : c-ares (2026-950a662010)

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-950a662010 advisory. - update to 1.34.7 - fixes CVE-2026-33630 GHSA-6wfj-rwm7-3542 and GHSA-pjmc-gx33-gc76 and GHSA-jv8r-gqr9-68wj Tenable has extracted the preceding description...

CVE-2026-33630

A flaw was found in c-ares. A use-after-free / double-free vulnerability exists in the query-completion handling path, where a query callback is invoked while the query is still linked in internal lookup structures. A remote attacker can exploit this via aresgetaddrinfo over TCP by sending crafte...

c-ares: c-ares: Use-after-free / double-free in query-completion handling

A flaw was found in c-ares. A use-after-free / double-free vulnerability exists in the query-completion handling path, where a query callback is invoked while the query is still linked in internal lookup structures. A remote attacker can exploit this via aresgetaddrinfo over TCP by sending crafte...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: c-ares: c-ares-1.34.7-1.hum1 aarch64, x8664 c-ares-devel-1.34.7-1.hum1 aarch64, x8664 c-ares-1.34.7-1.hum1.src src...

Linux Distros Unpatched Vulnerability : CVE-2026-33630

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - c-ares: c-ares: Use-after-free / double-free in query-completion handling CVE-2026-33630 Note that Nessus relies on the presence of the package as reported by t...