CVE-2020-15572

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.51%
Vendor Advisory torproject.org Vendor Advisory torproject.org Vendor Advisory torproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://gitlab.torproject.org/tpo/core/tor/-/issues/33119 vendor advisory
https://trac.torproject.org/projects/tor/wiki/TROVE vendor advisory
https://blog.torproject.org/new-release-tor-03511-0428-0436-security-fixes release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-15572?
CVE-2020-15572 has been scored as a high severity vulnerability.
How to fix CVE-2020-15572?
To fix CVE-2020-15572, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-15572 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-15572 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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