SB2020112807 - Concurrent execution using shared resource with improper synchronization ('race condition') in Linux kernel mm
Published: November 28, 2020
Security Bulletin ID
SB2020112807
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Concurrent execution using shared resource with improper synchronization ('race condition') (CVE-ID: CVE-2020-29370)
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 website.
References
- 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/