CVE-2019-8955

HIGH

Tor < 0.3.3.12, 0.3.4.x < 0.3.4.11, 0.3.5.x < 0.3.5.8, 0.4.x < 0.4.0.2-alpha - Remote DoS via KIST Cell Scheduler

Title source: llm
STIX 2.1

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.

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/107136

Scores

CVSS v3 7.5
EPSS 0.0457
EPSS Percentile 90.4%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-770
Status published
Products (18)
torproject/tor 0.3.4.0 alpha-dev
torproject/tor 0.3.4.1 alpha
torproject/tor 0.3.4.2 alpha
torproject/tor 0.3.4.3 alpha
torproject/tor 0.3.4.4 rc
torproject/tor 0.3.4.5 rc
torproject/tor 0.3.4.6 rc
torproject/tor 0.3.4.7 rc
torproject/tor 0.3.5.0 alpha-dev
torproject/tor 0.3.5.1 alpha
... and 8 more
Published Feb 21, 2019
Tracked Since Feb 18, 2026