Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-35508 |
CWE-ID | CWE-665 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
Linux kernel Operating systems & Components / Operating system |
Vendor | Linux Foundation |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU55259
Risk: Low
CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-35508
CWE-ID:
CWE-665 - Improper Initialization
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper initialization of the process id in the Linux kernel child/parent process identification handling while filtering signal handlers. A local user can run a specially crafted application to bypass checks to send any signal to a privileged process.
MitigationInstall updates from vendor's website.
Vulnerable software versionsLinux kernel: 5.12 rc1 - 5.12 rc4
External linkshttp://github.com/torvalds/linux/commit/b4e00444cab4c3f3fec876dc0cccc8cbb0d1a948
http://bugzilla.redhat.com/show_bug.cgi?id=1902724
http://security.netapp.com/advisory/ntap-20210513-0006/
Q & A
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.