🔴 严重 | CVE-2026-53225 — In the Linux kernel, the following vulnerability has be
🔴 《严重安全漏洞：CVE-2026-53225》
CVSS 评分: 严重（9.1） CVE ID: CVE-2026-53225
漏洞描述
In the Linux kernel, the following vulnerability has been resolved:
sctp: fix uninit-value in __sctp_rcv_asconf_lookup()
__sctp_rcv_asconf_lookup() in net/sctp/input.c only checks that the ASCONF
chunk can hold the ADDIP header and a parameter header, then calls
af->from_addr_param(), which reads the full address (16 bytes for IPv6)
trusting the parameter's declared length.
An unauthenticated peer can send a truncated trailing ASCONF chunk that
declares an IPv6 address parameter but stops after the 4-byte parameter
header; reached from the no-association lookup path, from_addr_param() then
reads uninitialized bytes past the parameter.
Impact: an unauthenticated SCTP peer makes the receive path read up to 16
bytes of uninitialized memory past a truncated ASCONF address parameter.
The sibling __sctp_rcv_init_lookup() bounds parameters with
sctp_walk_params(); this path open-codes the fetch and omits the bound.
Verify the whole address parameter lies within the chunk before
from_addr_param() reads it, the same class of fix as commit 51e5ad549c43
("net: sctp: fix KMSAN uninit-value in sctp_inq_pop").
| 字段 | 值 |
|---|---|
| CVE ID | CVE-2026-53225 |
| CVSS 评分 | 9.1 |
| 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