Vulnerability Information
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Vulnerability Title
Use After Free in libfuse
Vulnerability Description
libfuse is the reference implementation of the Linux FUSE. From version 3.18.0 to before version 3.18.2, a use-after-free vulnerability in the io_uring subsystem of libfuse allows a local attacker to crash FUSE filesystem processes and potentially execute arbitrary code. When io_uring thread creation fails due to resource exhaustion (e.g., cgroup pids.max), fuse_uring_start() frees the ring pool structure but stores the dangling pointer in the session state, leading to a use-after-free when the session shuts down. The trigger is reliable in containerized environments where cgroup pids.max limits naturally constrain thread creation. This issue has been patched in version 3.18.2.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vulnerability Type
释放后使用
Vulnerability Title
libfuse 资源管理错误漏洞
Vulnerability Description
libfuse是libfuse开源的一个用户空间文件系统开发库。 libfuse 3.18.0至3.18.2之前版本存在资源管理错误漏洞，该漏洞源于io_uring子系统存在释放后重用问题，可能导致本地攻击者使FUSE文件系统进程崩溃或执行任意代码。
CVSS Information
N/A
Vulnerability Type
N/A