NULL pointer dereference in Linux kernel - CVE-2019-12615
Published: June 4, 2019 / Updated: June 2, 2021
Vulnerability identifier: #VU90671
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2019-12615
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the get_vdev_port_node_info() function in arch/sparc/kernel/mdesc.c. A remote non-authenticated attacker can perform a denial of service (DoS) attack.
Affected software
Linux kernel
Fedora
kernel
kernel-headers
Fedora
kernel
kernel-headers
How to mitigate CVE-2019-12615
Install update from vendor's website.
kernel - addressed in versions 5.1.8-200.fc29, 5.1.8-300.fc30
kernel-headers - addressed in versions 5.1.8-200.fc29, 5.1.8-300.fc30
kernel-headers - addressed in versions 5.1.8-200.fc29, 5.1.8-300.fc30
External References
- https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg2014901.html
- https://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc.git/commit/?id=80caf43549e7e41a695c6d1e11066286538b336f
- http://www.securityfocus.com/bid/108549
- https://security.netapp.com/advisory/ntap-20190710-0002/
- https://support.f5.com/csp/article/K60924046
- https://support.f5.com/csp/article/K60924046?utm_source=f5support&utm_medium=RSS