Synopsis
Important: c-ares security update
Description
The c-ares C library defines asynchronous DNS (Domain Name System) requests and provides name resolving API.
Security Fix(es):
* c-ares: c-ares: Denial of Service via unvalidated DNS header record counts (CVE-2026-69186)
* c-ares: c-ares: CPU exhaustion denial of service via unbounded DNS name compression pointer chains (CVE-2026-69184)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected products
Rocky Linux 10 aarch64
Rocky Linux 10 ppc64le
Rocky Linux 10 riscv64
Rocky Linux 10 s390x
Rocky Linux 10 x86_64
Fixes
2538212
2538396
CVEs
CVE-2026-69184
CVE-2026-69186
Affected packages
Rocky Linux 10 aarch64 - BaseOS
c-ares-0:1.34.6-5.el10_3.2.src.rpm
c-ares-debugsource-0:1.34.6-5.el10_3.2.aarch64.rpm
c-ares-0:1.34.6-5.el10_3.2.aarch64.rpm
c-ares-debuginfo-0:1.34.6-5.el10_3.2.aarch64.rpm
Rocky Linux 10 ppc64le - BaseOS
c-ares-0:1.34.6-5.el10_3.2.src.rpm
c-ares-debugsource-0:1.34.6-5.el10_3.2.ppc64le.rpm
c-ares-0:1.34.6-5.el10_3.2.ppc64le.rpm
c-ares-debuginfo-0:1.34.6-5.el10_3.2.ppc64le.rpm
Rocky Linux 10 riscv64 - BaseOS
c-ares-0:1.34.6-5.el10_3.2.src.rpm
Rocky Linux 10 s390x - BaseOS
c-ares-0:1.34.6-5.el10_3.2.src.rpm
c-ares-debuginfo-0:1.34.6-5.el10_3.2.s390x.rpm
c-ares-debugsource-0:1.34.6-5.el10_3.2.s390x.rpm
c-ares-0:1.34.6-5.el10_3.2.s390x.rpm
Rocky Linux 10 x86_64 - BaseOS
c-ares-0:1.34.6-5.el10_3.2.src.rpm
c-ares-debuginfo-0:1.34.6-5.el10_3.2.x86_64.rpm
c-ares-0:1.34.6-5.el10_3.2.x86_64.rpm
c-ares-debugsource-0:1.34.6-5.el10_3.2.x86_64.rpm
Rocky Linux 10 ppc64le - AppStream
c-ares-devel-0:1.34.6-5.el10_3.2.ppc64le.rpm
Rocky Linux 10 s390x - AppStream
c-ares-devel-0:1.34.6-5.el10_3.2.s390x.rpm
Rocky Linux 10 aarch64 - AppStream
c-ares-devel-0:1.34.6-5.el10_3.2.aarch64.rpm
Rocky Linux 10 x86_64 - AppStream
c-ares-devel-0:1.34.6-5.el10_3.2.x86_64.rpm