Remote code execution in FreeBSD ggatec

1) Buffer overflow

EUVDB-ID: #VU56092

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-29630

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in ggatec(8) daemon. A remote attacker on the local network can pass specially crafted content to the affected daemon, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FreeBSD: 11.0 - 13.0

CPE2.3

• cpe:2.3:o:freebsd_foundation:freebsd:11.0:*:*:*:*:*:*:*
• cpe:2.3:o:freebsd_foundation:freebsd:11.1:*:*:*:*:*:*:*
• cpe:2.3:o:freebsd_foundation:freebsd:11.2:*:*:*:*:*:*:*

External links

https://www.freebsd.org/security/advisories/FreeBSD-SA-21:14.ggatec.asc

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.