CVE-2020-15572: High severity tor project tor vulnerability
Published Jul 15, 2020
·Updated
Tor before 0.4.3.6 has an out-of-bounds memory access that allows a remote denial-of-service (crash) attack against Tor instances built to use Mozilla Network Security Services (NSS), aka TROVE-2020-001.
Affected Software
5 affected components
torproject Tor<0.3.5.11
torproject Tor>0.4.2.0<0.4.2.8
torproject Tor>0.4.3.0<0.4.3.6
torproject Tor=0.4.4.0-alpha
torproject Tor=0.4.4.1-alpha
Event History
Jul 15, 2020
CVE Published
via MITRE·04:02 PM
Data Sourced
via MITRE·04:02 PM
Description
Frequently Asked Questions
1
What is the vulnerability ID for this Tor issue?
The vulnerability ID for this Tor issue is CVE-2020-15572.
2
What is the severity of CVE-2020-15572?
The severity of CVE-2020-15572 is high with a CVSS score of 7.5.
3
What is the impact of CVE-2020-15572?
CVE-2020-15572 allows a remote attacker to perform a denial-of-service (crash) attack against Tor instances built to use Mozilla Network Security Services (NSS).
4
Which versions of Tor are affected by CVE-2020-15572?
Tor versions up to and including 0.4.3.6 are affected by CVE-2020-15572.
5
How can I fix CVE-2020-15572?
To fix CVE-2020-15572, users should update their Tor version to 0.4.3.7 or later.