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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

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

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

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

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:torproject:tor:0.3.4.5:rc::::::
	cpe:2.3:a:torproject:tor:0.3.4.6:rc::::::
	cpe:2.3:a:torproject:tor:0.3.5.4:alpha::::::
	cpe:2.3:a:torproject:tor:0.3.5.5:alpha::::::
	cpe:2.3:a:torproject:tor:0.3.4.1:alpha::::::
	cpe:2.3:a:torproject:tor:0.3.4.2:alpha::::::
	cpe:2.3:a:torproject:tor:0.3.5.0:alpha-dev::::::
	cpe:2.3:a:torproject:tor:0.3.5.1:alpha::::::
	cpe:2.3:a:torproject:tor::::::::
	cpe:2.3:a:torproject:tor:0.3.4.0:alpha-dev::::::
	cpe:2.3:a:torproject:tor:0.3.4.7:rc::::::
	cpe:2.3:a:torproject:tor:0.3.4.3:alpha::::::
	cpe:2.3:a:torproject:tor:0.3.4.4:rc::::::
	cpe:2.3:a:torproject:tor::::::::
	cpe:2.3:a:torproject:tor:0.3.5.2:alpha::::::
	cpe:2.3:a:torproject:tor:0.3.5.3:alpha::::::
	cpe:2.3:a:torproject:tor:0.3.5.6:rc::::::
	cpe:2.3:a:torproject:tor:0.3.5.7:::::::*
	cpe:2.3:a:torproject:tor:0.4.0.1:alpha::::::

Information

Published : 2019-02-21 15:29

Updated : 2020-08-24 10:37

NVD link : CVE-2019-8955

Mitre link : CVE-2019-8955

JSON object : View

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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Products Affected

torproject

tor

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