Vulnerability identifier: #VU86247
Vulnerability risk: Low
CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-125
Exploitation vector: Local
Exploit availability: Yes
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
Description
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to a boundary condition in Linux kernel eBPF. A local user trigger an out-of-bounds read error and read contents of memory on the system or crash the kernel.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Linux kernel:
External links
http://access.redhat.com/security/cve/CVE-2021-4204
http://bugzilla.redhat.com/show_bug.cgi?id=2039178
http://security-tracker.debian.org/tracker/CVE-2021-4204
http://www.openwall.com/lists/oss-security/2022/01/11/4
http://security.netapp.com/advisory/ntap-20221228-0003/
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.