Vulnerability identifier: #VU52687
Vulnerability risk: Low
CVSSv3.1: 3.5 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-681
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
Description
The vulnerability allows a local attacker to gain unauthorized access to sensitive information on the system.
The vulnerability exists due to incorrect conversion between numeric types in the /proc/pid/syscall functionality. A local attacker can read /proc/pid/syscall to trigger this vulnerability, leading to the kernel leaking memory contents.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Linux kernel: 5.1 rc4 - 5.1 rc5, 5.2 - 5.2.21, 5.3 - 5.3.18, 5.4 - 5.4.66, 5.5 - 5.5.19, 5.6 - 5.6.14, 5.7 - 5.7.10, 5.8 rc1 - 5.8.17, 5.9 rc1 - 5.9.16, 5.10 rc1 - 5.10 rc4
External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1211
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.