https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-10T17:08:21.237266+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-63388 CVE-2026-63388 — Libevent: Heap out-of-bounds write in bufferevent_socket_set_conn_address_ reachable via AF_UNIX accept 2026-10-10T17:08:21.722281+00:00

Affected: libevent

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has a heap out-of-bounds write in bufferevent_sock.c when bufferevent_socket_set_conn_address_ copies a kernel-supplied AF_UNIX peer address into bufferevent_private.conn_address. Release builds compiled with NDEBUG disable the EVUTIL_ASSERT length guard, and the evhttp accept path can pass a 110-byte sockaddr from accept() into the 28-byte field. An unauthenticated local peer able to connect to an AF_UNIX listener can overwrite the adjacent dns_request pointer and heap data, causing memory corruption with confidentiality, integrity, and availability impact. This issue is fixed in versions 2.1.13 and 2.2.2-alpha.

 https://vulnerability.circl.lu/vuln/usn-8840-1 USN-8840-1 — libevent vulnerabilities 2026-10-10T17:08:21.722408+00:00

Affected: Ubuntu:Pro:14.04:LTS: libevent, Ubuntu:Pro:16.04:LTS: libevent, Ubuntu:Pro:18.04:LTS: libevent, Ubuntu:Pro:20.04:LTS: libevent, Ubuntu:22.04:LTS: libevent, Ubuntu:24.04:LTS: libevent, Ubuntu:26.04:LTS: libevent

Michał Majchrowicz and Marcin Wyczechowski discovered that libevent incorrectly handled certain DNS responses. A remote attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-63387)

It was discovered that libevent incorrectly handled certain connections. A local attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-63388)