CVE-2016-8860

Severity CVSS v4.0:

Pending analysis

Type:

CWE-119 Buffer Errors

Publication date:

04/01/2017

Last modified:

12/04/2025

Description

Tor before 0.2.8.9 and 0.2.9.x before 0.2.9.4-alpha had internal functions that were entitled to expect that buf_t data had NUL termination, but the implementation of or/buffers.c did not ensure that NUL termination was present, which allows remote attackers to cause a denial of service (client, hidden service, relay, or authority crash) via crafted data.

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::::::::		0.2.8.8 (including)
cpe:2.3:a:torproject:tor:0.2.9.0:alpha::::::
cpe:2.3:a:torproject:tor:0.2.9.1:alpha::::::
cpe:2.3:a:torproject:tor:0.2.9.2:alpha::::::
cpe:2.3:a:torproject:tor:0.2.9.3:alpha::::::

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

CPE	From	Up to
cpe:2.3:a:torproject:tor::::::::		0.2.8.8 (including)
cpe:2.3:a:torproject:tor:0.2.9.0:alpha::::::
cpe:2.3:a:torproject:tor:0.2.9.1:alpha::::::
cpe:2.3:a:torproject:tor:0.2.9.2:alpha::::::
cpe:2.3:a:torproject:tor:0.2.9.3:alpha::::::

CVE-2016-8860

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools