SB2019081916 - Race condition in Linux kernel
Published: August 19, 2019 Updated: July 17, 2020
Security Bulletin ID
SB2019081916
CSH 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 vulnerability.
1) Race condition (CVE-ID: CVE-2016-10906)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: 7.3 [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]
The vulnerability allows a local authenticated user to execute arbitrary code.
An issue was discovered in drivers/net/ethernet/arc/emac_main.c in the Linux kernel before 4.5. A use-after-free is caused by a race condition between the functions arc_emac_tx and arc_emac_tx_clean.
Remediation
Install update from vendor's website.
References
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c278c253f3d992c6994d08aa0efb2b6806ca396f
- https://seclists.org/bugtraq/2019/Nov/11
- https://support.f5.com/csp/article/K01993501?utm_source=f5support&utm_medium=RSS
- https://usn.ubuntu.com/4163-1/
- https://usn.ubuntu.com/4163-2/