Resource exhaustion in Tor - CVE-2020-10592

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Main Vulnerability Database Vulnerabilities #VU26505

Resource exhaustion in Tor - CVE-2020-10592

Published: April 1, 2020


Vulnerability identifier: #VU26505
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-10592
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to improper resource management. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


Affected software

Tor
Gentoo Linux
Debian Linux
SUSE Linux
Opensuse
tor (Alpine package)
firefox-esr (Alpine package)
tor (Debian package)

How to mitigate CVE-2020-10592

Install updates from vendor's website.

Tor - addressed in versions 0.3.5.10, 0.4.1.9, 0.4.2.7
tor (Alpine package) - addressed in versions 0.3.5.10-r0, 0.4.1.9-r0
tor (Debian package) - update to 0.3.5.10-1~bpo9+1

External References

Related Security Bulletins