|Number of vulnerabilities||1|
|CVE ID|| CVE-2020-7457
|CWE ID|| CWE-416
|Public exploit||Public exploit code for vulnerability #1 is available.|
Operating systems & Components / Operating system
This security advisory describes one low risk vulnerability.
CVSSv3.1: 8.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C] [PCI]
CWE-416 - Use After Free
Exploit availability: YesDescription
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition followed by a use-after-free error when processing IPv6 header options set by the IPV6_2292PKTOPTIONS socket option. A local user can set specially crafted IPv6 header options, trigger memory corruption and execute arbitrary code on the system with elevated privileges.
Install updates from vendor's website.Vulnerable software versions
FreeBSD: 11.0, 11.1, 11.2, 11.3, 11.4, 12.0, 12.1CPE
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, a fully functional exploit for this vulnerability is available.