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SUSE-SU-2026:3872-1

Опубликовано: 28 авг. 2026
Источник: suse-cvrf

Описание

Security update for libcares2

This update for libcares2 fixes the following issues:

  • CVE-2026-33630: Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via ares_getaddrinfo() over TCP (bsc#1270416).
  • CVE-2026-69184: CPU-exhaustion denial of service via unbounded DNS name compression pointer chains (bsc#1276290).

Список пакетов

SUSE Linux Enterprise Server 12 SP5-LTSS
libcares-devel-1.9.1-9.24.1
libcares2-1.9.1-9.24.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5
libcares-devel-1.9.1-9.24.1
libcares2-1.9.1-9.24.1

Ссылки

Описание

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 points in the resend/finish path (timeout handling, response handling, and query dispatch). If the query, or for ares_getaddrinfo() the owning host_query, is freed as a side effect of that callback, it is then accessed and/or freed a second time. This vulnerability is fixed in ver 1.34.7.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP5-LTSS:libcares-devel-1.9.1-9.24.1
SUSE Linux Enterprise Server 12 SP5-LTSS:libcares2-1.9.1-9.24.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:libcares-devel-1.9.1-9.24.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:libcares2-1.9.1-9.24.1
Ссылки

Описание

unknown

Затронутые продукты
SUSE Linux Enterprise Server 12 SP5-LTSS:libcares-devel-1.9.1-9.24.1
SUSE Linux Enterprise Server 12 SP5-LTSS:libcares2-1.9.1-9.24.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:libcares-devel-1.9.1-9.24.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:libcares2-1.9.1-9.24.1
Ссылки