What is CVE-2020-15572?

CVE-2020-15572 is a high-severity vulnerability in Torproject Tor, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2020-07-15.

How severe is CVE-2020-15572?

High severity. CVSS v3 base score is 7.5 out of 10.

Out-of-bounds Read in Torproject Tor

CVE-2020-15572

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.

Vulnerability class: Buffer Overflow

EPSS: 0.014 (69.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Torproject Tor — versions 0.4.4.0, 0.4.4.1
N/a — versions n/a

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_CONFIRM, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2020-15572?: CVE-2020-15572 is a high-severity vulnerability in Torproject Tor, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2020-07-15.
How severe is CVE-2020-15572?: High severity. CVSS v3 base score is 7.5 out of 10.