#VU52347 Race condition in Mozilla Thunderbird - CVE-2021-29948
Published: April 19, 2021
Vulnerability identifier: #VU52347
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-2021-29948
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Thunderbird
Mozilla Thunderbird
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition where signatures are written to disk before and read during verification. A local user can exploit the race and replace files in the process.
Remediation
Install updates from vendor's website.