Out-of-bounds read in FreeBSD - CVE-2020-7455
Published: May 12, 2020
Vulnerability identifier: #VU27860
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-7455
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within libalias(3) library when calculating length in FTP packets. A remote attacker can send specially crafted FTP packet to the system, trigger an out-pf-bounds read and read contents of kernel or natd process memory on the system.
Affected software
FreeBSD
How to mitigate CVE-2020-7455
Install updates from vendor's website.