Описание
Security update for haproxy
This update for haproxy fixes the following issues
- CVE-2026-55203: integer overflow vulnerability in the fcgi_conn structure's drl field that allows buffer misparse as new FCGI record headers (bsc#1268557).
- CVE-2026-55204: null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c (bsc#1268558).
Список пакетов
SUSE Linux Enterprise High Availability Extension 15 SP6
SUSE Linux Enterprise High Availability Extension 15 SP7
Ссылки
- Link for SUSE-SU-2026:2652-1
- E-Mail link for SUSE-SU-2026:2652-1
- SUSE Security Ratings
- SUSE Bug 1268557
- SUSE Bug 1268558
- SUSE CVE CVE-2026-55203 page
- SUSE CVE CVE-2026-55204 page
Описание
HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgi_conn structure's drl field that allows buffer misparse as new FCGI record headers. When contentLength is 65535 and paddingLength is 1 or more, the drl field wraps to 0, causing incorrect record consumption and allowing malicious FastCGI backends to desynchronize the FCGI framing parser, potentially causing request routing errors, response smuggling, or memory safety issues.
Затронутые продукты
Ссылки
- CVE-2026-55203
- SUSE Bug 1268557
Описание
HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c that fails to validate the return value of hpack_dht_defrag() when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memory pressure to dereference a NULL pointer and crash HAProxy worker processes, causing denial of service.
Затронутые продукты
Ссылки
- CVE-2026-55204
- SUSE Bug 1268558