Vulnerability Monitor

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CVE-2019-8955

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.

Published

2019-02-21T23:29:00.267

Last Modified

2024-11-21T04:50:44.113

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-770
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application torproject tor < 0.3.3.12 Yes
Application torproject tor < 0.3.4.11 Yes
Application torproject tor 0.3.4.0 Yes
Application torproject tor 0.3.4.1 Yes
Application torproject tor 0.3.4.2 Yes
Application torproject tor 0.3.4.3 Yes
Application torproject tor 0.3.4.4 Yes
Application torproject tor 0.3.4.5 Yes
Application torproject tor 0.3.4.6 Yes
Application torproject tor 0.3.4.7 Yes
Application torproject tor 0.3.5.0 Yes
Application torproject tor 0.3.5.1 Yes
Application torproject tor 0.3.5.2 Yes
Application torproject tor 0.3.5.3 Yes
Application torproject tor 0.3.5.4 Yes
Application torproject tor 0.3.5.5 Yes
Application torproject tor 0.3.5.6 Yes
Application torproject tor 0.3.5.7 Yes
Application torproject tor 0.4.0.1 Yes
References