#VU63631 Incorrect default permissions in Linux kernel - CVE-2022-30594
Published: May 25, 2022 / Updated: May 25, 2022
Vulnerability identifier: #VU63631
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-30594
CWE-ID: CWE-276
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to mishandling seccomp permissions. A local user can bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag and escalate privileges on the system.
Remediation
Install updates from vendor's website.
External links
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.2
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2276
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee1fee900537b5d9560e9f937402de5ddc8412f3
- https://github.com/torvalds/linux/commit/ee1fee900537b5d9560e9f937402de5ddc8412f3