haproxy-2.8.14-3.el9_8.2
エラータID: AXSA:2026-1627:03
リリース日:
2026/08/24 Monday - 13:50
題名:
haproxy-2.8.14-3.el9_8.2
影響のあるチャネル:
MIRACLE LINUX 9 for x86_64
Severity:
High
Description:
以下項目について対処しました。
[Security Fix]
- HAProxy には、整数オーバーフローの問題があるため、リモートの
攻撃者により、情報の漏洩、およびデータ破壊を可能とする脆弱性が
存在します。(CVE-2026-55203)
- HAProxy の hpack_dht_insert() 関数には、NULL ポインタ
デリファレンスの問題があるため、リモートの攻撃者により、
サービス拒否攻撃を可能とする脆弱性が存在します。
(CVE-2026-55204)
解決策:
パッケージをアップデートしてください。
CVE:
CVE-2026-55203
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.
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.
CVE-2026-55204
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.
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.
追加情報:
N/A
ダウンロード:
SRPMS
- haproxy-2.8.14-3.el9_8.2.src.rpm
MD5: c313241d07184b8cd7cafed4cdf23ef3
SHA-256: 1a6a1509701d4a02175cef8aeb22a4be76a12edabdc5c5f119148b629cbe404c
Size: 4.23 MB
Asianux Server 9 for x86_64
- haproxy-2.8.14-3.el9_8.2.x86_64.rpm
MD5: aa7eac054e429a6cbc4f259df1c5cd8f
SHA-256: 895f96f830eb5756c365672e6c5a6754e330037df3aacec0d90ef7c3db6f028b
Size: 2.49 MB
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