Concurrent execution using shared resource with improper synchronization ('race condition') in Linux kernel - CVE-2020-29370
Published: November 28, 2020 / Updated: October 19, 2022
Vulnerability identifier: #VU92421
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-29370
CWE-ID: CWE-362
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 execute arbitrary code.
The vulnerability exists due to concurrent execution using shared resource with improper synchronization ('race condition') error within the kmem_cache_alloc_bulk() function in mm/slub.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's repository.
External links
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.11
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2022
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fd4d9c7d0c71866ec0c2825189ebd2ce35bd95b8
- https://security.netapp.com/advisory/ntap-20201218-0001/