SB2020041702 - Denial of service in Linux kernel KVM
Published: April 17, 2020
Security Bulletin ID
SB2020041702
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2020-11669)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management issue. A local user of guest operating system can perform a denial of service attack against the POWER9 KVM host.
Remediation
Install update from vendor's website.
References
- http://www.openwall.com/lists/oss-security/2020/04/15/1
- http://www.openwall.com/lists/oss-security/2020/04/15/2
- http://www.openwall.com/lists/oss-security/2020/04/16/2
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=53a712bae5dd919521a58d7bad773b949358add0
- https://github.com/torvalds/linux/commit/53a712bae5dd919521a58d7bad773b949358add0
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.116
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.177