Input validation error in Linux kernel - CVE-2019-16995
Published: September 30, 2019 / Updated: August 8, 2020
Vulnerability identifier: #VU35208
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-16995
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2019-16995
Install update from vendor's website.
Sources
- 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/