Vulnerability Database

296,172

Total vulnerabilities in the database

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: Feb 22, 2019
  • Updated: Apr 13, 2023
  • CVE: CVE-2019-8955
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:N/A:P

CWEs:

Software From Fixed in
torproject / tor - 0.3.3.12
torproject / tor 0.3.4.0-alpha-dev 0.3.4.0-alpha-dev.x
torproject / tor 0.3.4.1-alpha 0.3.4.1-alpha.x
torproject / tor 0.3.4.2-alpha 0.3.4.2-alpha.x
torproject / tor 0.3.4.3-alpha 0.3.4.3-alpha.x
torproject / tor 0.3.4.4-rc 0.3.4.4-rc.x
torproject / tor 0.3.4.5-rc 0.3.4.5-rc.x
torproject / tor 0.3.4.6-rc 0.3.4.6-rc.x
torproject / tor 0.3.4.7-rc 0.3.4.7-rc.x
torproject / tor 0.3.4.8 0.3.4.11
torproject / tor 0.3.5.0-alpha-dev 0.3.5.0-alpha-dev.x
torproject / tor 0.3.5.1-alpha 0.3.5.1-alpha.x
torproject / tor 0.3.5.2-alpha 0.3.5.2-alpha.x
torproject / tor 0.3.5.3-alpha 0.3.5.3-alpha.x
torproject / tor 0.3.5.4-alpha 0.3.5.4-alpha.x
torproject / tor 0.3.5.5-alpha 0.3.5.5-alpha.x
torproject / tor 0.3.5.6-rc 0.3.5.6-rc.x
torproject / tor 0.3.5.7 0.3.5.7.x
torproject / tor 0.4.0.1-alpha 0.4.0.1-alpha.x