🔴 严重 | CVE-2026-53246 — In the Linux kernel, the following vulnerability has be
🔴 《严重安全漏洞：CVE-2026-53246》
CVSS 评分: 严重（9.8） CVE ID: CVE-2026-53246
漏洞描述
In the Linux kernel, the following vulnerability has been resolved:
sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing
When a listening SCTP server processes a COOKIE_ECHO chunk, the cached
peer INIT chunk embedded after the cookie is parsed and its parameters
are later walked by sctp_process_init() using sctp_walk_params().
However, the chunk header length of this cached INIT chunk was not
validated against the remaining buffer in the COOKIE_ECHO payload. If
the length field is inflated, the parameter walk can run beyond the
actual received data, leading to out-of-bounds reads and potential
memory corruption during later parameter handling (e.g. STATE_COOKIE
processing and kmemdup() copies).
Add a bounds check in sctp_unpack_cookie() to ensure the cached INIT
chunk length does not exceed the available data in the COOKIE_ECHO
buffer before it is used.
| 字段 | 值 |
|---|---|
| CVE ID | CVE-2026-53246 |
| CVSS 评分 | 9.8 |
| 严重程度 | 严重 |
| 发布时间 | 2026-06-25 |
| 状态 | Received |
数据来源: NVD | 获取时间: 2026-06-28 18:14