ID:6400 - Exploit for Use-after-free in Tor - CVE-2018-0491

 
Main Vulnerability Database Exploits ID:6400 - Exploit for Use-after-free in Tor - CVE-2018-0491

ID:6400 - Exploit for Use-after-free in Tor - CVE-2018-0491

Published: June 17, 2021


Vulnerability identifier: #VU31346
Vulnerability risk: Medium
CVE-ID: CVE-2018-0491
CWE-ID: CWE-416
Exploitation vector: Remote access
Vulnerable software:
Tor

Link to public exploit:


Vulnerability description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

A use-after-free issue was discovered in Tor 0.3.2.x before 0.3.2.10. It allows remote attackers to cause a denial of service (relay crash) because the KIST implementation allows a channel to be added more than once in the pending list.


Remediation

Install update from vendor's website.