Rocky Linux 10.2 [CIQ] Security Update: c-ares / c-ares-debuginfo / c-ares-debugsource / c-ares-devel (crlsa-2026_42096)

The Rocky Linux 10.2 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202642096 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...

Ubuntu 26.04 LTS : c-ares vulnerability (USN-8844-1)

The remote Ubuntu 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8844-1 advisory. It was discovered that c-ares incorrectly handled certain query completion callbacks. An attacker could possibly use this issue to trigger a use- after-free or...

c-ares : Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via ares_getaddrinfo() over TCP

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AZL-99093 CVE-2026-33630 affecting package fluent-bit for versions less than 3.1.10-7

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, 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 poin...

CVE-2026-33630

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, 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 poin...

ALPINE-CVE-2026-33630

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, 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 poin...

EUVD-2026-70664

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, 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 poin...

CVE-2026-33630

c-ares , an asynchronous DNS resolver library, is affected by a use-after-free / double-free in its query-completion handling, present from version 1.32.3 through 1.34.6 and fixed in 1.34.7 . The flaw occurs when a query's callback is invoked while the query is still linked in the channel's inter...

CVE-2026-33630 c-ares : Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via ares_getaddrinfo() over TCP

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, 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 poin...

CVE-2026-33630 c-ares : Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via ares_getaddrinfo() over TCP

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, 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 poin...

CVE-2026-33630

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, 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 poin...

CVE-2026-33630 c-ares : Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via ares_getaddrinfo() over TCP

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, 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 poin...

CVE-2026-33630: Double Free

c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, 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 poin...

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,...

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...

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,...

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...

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...

Use After Free

Overview Affected versions of this package are vulnerable to Use After Free in the query completion process. An attacker can cause memory corruption and application crash by sending crafted DNS responses that manipulate the sequence of query completions, such as forcing an EDNS-downgrade retry an...