Out-of-bounds write in ncurses - CVE-2020-19189
Published: October 25, 2023
Vulnerability identifier: #VU82358
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-19189
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Free Software Foundation
Affected software:
ncurses
ncurses
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the postprocess_terminfo() function in tinfo/parse_entry. A local user can run a specially crafted command to trigger an out-of-bounds write and perform a denial of service (DoS) attack.
How to mitigate CVE-2020-19189
Install updates from vendor's website.