发布时间: 2024年4月12日
修改时间: 2024年5月27日
In the Linux kernel, the following vulnerability has been resolved:NFS: fs_context: validate UDP retrans to prevent shift out-of-boundsFix shift out-of-bounds in xprt_calc_majortimeo(). This is causedby a garbage timeout (retrans) mount option being passed to nfs mount,in this case from syzkaller.If the protocol is XPRT_TRANSPORT_UDP, then retrans is a shiftvalue for a 64-bit long integer, so retrans cannot be >= 64.If it is >= 64, fail the mount and return an error.
| NVD | openEuler | |
|---|---|---|
| CVSS评分 | 7.1 | 7.1 |
| Attack Vector | Local | Local |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality | High | High |
| Integrity | None | None |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2024-4772 | kernel security update | 2024年4月12日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | kernel | Fixed |
| KY3.4-5A | kernel | Fixed |
| KY3.5.1 | kernel | Unaffected |
| KY3.5.2 | kernel | Unaffected |
