#VU29603 Buffer overflow in FreeBSD - CVE-2020-7458
Published: July 9, 2020 / Updated: July 15, 2020
Vulnerability identifier: #VU29603
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2020-7458
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
FreeBSD
FreeBSD
Software vendor:
FreeBSD Foundation
FreeBSD Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error when processing long values passed via the user-controlled PATH environment variable in posix_spawnp(3). A local user can construct a specially crafted PATH environment variable and execute arbitrary code on the system with elevated privileges.
Remediation
Install updates from vendor's website.