#VU51456 Integer overflow in Gnome GLib - CVE-2021-27219
Published: March 15, 2021
Vulnerability identifier: #VU51456
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:U/U:Clear
CVE-ID: CVE-2021-27219
CWE-ID: CWE-190
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Gnome GLib
Gnome GLib
Software vendor:
Gnome Development Team
Gnome Development Team
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer overflow within the g_bytes_new() function on 64-bit platforms due to an implicit cast from 64 bits to 32 bits. A local user can run a specially crafted program to trigger an integer overflow and execute arbitrary code with elevated privileges.
Remediation
Install updates from vendor's website.