CVE-2024-41012— Linux kernel 安全漏洞
可能的 ATT&CK 技术 1AI
T1003 · OS Credential Dumping影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | c293621bbf678a3d85e3ed721c3921c8a670610d< d30ff33040834c3b9eee29740acd92f9c7ba2250 | affected |
c293621bbf678a3d85e3ed721c3921c8a670610d< dc2ce1dfceaa0767211a9d963ddb029ab21c4235 | affected | ||
c293621bbf678a3d85e3ed721c3921c8a670610d< 5661b9c7ec189406c2dde00837aaa4672efb6240 | affected | ||
c293621bbf678a3d85e3ed721c3921c8a670610d< 52c87ab18c76c14d7209646ccb3283b3f5d87b22 | affected | ||
c293621bbf678a3d85e3ed721c3921c8a670610d< ef8fc41cd6f95f9a4a3470f085aecf350569a0b3 | affected | ||
c293621bbf678a3d85e3ed721c3921c8a670610d< 5f5d0799eb0a01d550c21b7894e26b2d9db55763 | affected | ||
c293621bbf678a3d85e3ed721c3921c8a670610d< b6d223942c34057fdfd8f149e763fa823731b224 | affected | ||
c293621bbf678a3d85e3ed721c3921c8a670610d< 3cad1bc010416c6dd780643476bc59ed742436b9 | affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2024-41012 基础信息
漏洞信息
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Vulnerability Title
filelock: Remove locks reliably when fcntl/close race is detected
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: filelock: Remove locks reliably when fcntl/close race is detected When fcntl_setlk() races with close(), it removes the created lock with do_lock_file_wait(). However, LSMs can allow the first do_lock_file_wait() that created the lock while denying the second do_lock_file_wait() that tries to remove the lock. Separately, posix_lock_file() could also fail to remove a lock due to GFP_KERNEL allocation failure (when splitting a range in the middle). After the bug has been triggered, use-after-free reads will occur in lock_get_status() when userspace reads /proc/locks. This can likely be used to read arbitrary kernel memory, but can't corrupt kernel memory. Fix it by calling locks_remove_posix() instead, which is designed to reliably get rid of POSIX locks associated with the given file and files_struct and is also used by filp_flush().
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 filelock 模块中，当 fcntl_setlk 函数与 close 函数竞争时，会使用 do_lock_file_wait 函数移除创建的锁。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2024-41012 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-41012 其他参考 (7)
IV. Related Vulnerabilities
V. Comments for CVE-2024-41012
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