Vulnerability CVE-2015-2929

Vulnerability Name:

CVE-2015-2929 (CCN-102105)

Assigned:

2015-04-06

Published:

2015-04-06

Updated:

2020-02-01

Summary:

The Hidden Service (HS) client implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote servers to cause a denial of service (assertion failure and application exit) via a malformed HS descriptor.

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

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

5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

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

CVSS v2 Severity:

5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

Vulnerability Type:

CWE-noinfo

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2015-2929

Source: MISC
Type: Mailing List, Third Party Advisory
http://openwall.com/lists/oss-security/2015/04/06/5

Source: CCN
Type: oss-security Mailing List, Mon, 6 Apr 2015 16:07:00 -0400 (EDT)
Re: CVE Request: tor: new upstream releases (0.2.6.7, 0.2.5.12 and 0.2.4.27) fixing security issues

Source: CCN
Type: BID-73938
Tor CVE-2015-2929 Denial of Service Vulnerability

Source: CCN
Type: Tor Web site
Tor 0.2.5.12 and 0.2.6.7 are released

Source: XF
Type: UNKNOWN
tor-cve20152929-dos(102105)

Source: MISC
Type: Vendor Advisory
https://trac.torproject.org/projects/tor/ticket/15601

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2015-2929

Vulnerable Configuration:

Configuration 1:

cpe:/a:torproject:tor:*:*:*:*:*:*:*:* (Version < 0.2.4.27)

OR cpe:/a:torproject:tor:*:*:*:*:*:*:*:* (Version >= 0.2.5.1 and < 0.2.5.12)

OR cpe:/a:torproject:tor:*:*:*:*:*:*:*:* (Version >= 0.2.6.1 and < 0.2.6.7)

Configuration CCN 1:

cpe:/a:tor:tor:0.2.1.5:alpha:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:20152929	V	CVE-2015-2929	2022-06-30
oval:org.opensuse.security:def:113538	P	tor-0.2.8.11-1.1 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:106933	P	tor-0.2.8.11-1.1 on GA media (Moderate)	2021-10-01
oval:com.ubuntu.xenial:def:201529290000000	V	CVE-2015-2929 on Ubuntu 16.04 LTS (xenial) - medium.	2020-01-24
oval:org.cisecurity:def:38	P	DSA-3216-1 -- tor -- security update	2016-02-08
oval:com.ubuntu.precise:def:20152929000	V	CVE-2015-2929 on Ubuntu 12.04 LTS (precise) - medium.	2015-04-06
oval:com.ubuntu.trusty:def:20152929000	V	CVE-2015-2929 on Ubuntu 14.04 LTS (trusty) - medium.	2015-04-06
oval:com.ubuntu.xenial:def:20152929000	V	CVE-2015-2929 on Ubuntu 16.04 LTS (xenial) - medium.	2015-04-06

BACK