SB2019093022 - Input validation error in Linux kernel
Published: September 30, 2019 Updated: August 8, 2020
Security Bulletin ID
SB2019093022
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) Input validation error (CVE-ID: CVE-2019-16995)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In the Linux kernel before 5.0.3, a memory leak exits in hsr_dev_finalize() in net/hsr/hsr_device.c if hsr_add_port fails to add a port, which may cause denial of service, aka CID-6caabe7f197d.
Remediation
Install update from vendor's website.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00035.html
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.3
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6caabe7f197d3466d238f70915d65301f1716626
- https://github.com/torvalds/linux/commit/6caabe7f197d3466d238f70915d65301f1716626
- https://security.netapp.com/advisory/ntap-20191031-0005/