CVE-2019-8955 Information

Description

In Tor before 0.3.3.12 0.3.4.x before 0.3.4.11 0.3.5.x before 0.3.5.8 and 0.4.x before 0.4.0.2-alpha remote denial of service against Tor clients and relays can occur via memory exhaustion in the KIST cell scheduler.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00013.html http://www.securityfocus.com/bid/107136 https://blog.torproject.org/new-releases-tor-0402-alpha-0358-03411-and-03312 https://trac.torproject.org/projects/tor/ticket/29168

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5