Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2018-0490

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
05/03/2018
Last modified:
30/04/2019

Description

An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* 0.2.9.14 (including)
cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:* 0.3.1.7 (including) 0.3.1.9 (including)
cpe:2.3:a:torproject:tor:0.3.1.1:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.3.1.2:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.3.1.3:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.3.1.4:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.3.1.5:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.3.1.6:rc:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.3.2.1:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.3.2.2:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.3.2.3:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.3.2.4:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.3.2.5:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.3.2.6:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.3.2.7:rc:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools