Vulnerability Name:

CVE-2017-0375 (CCN-130531)

Assigned:2016-11-29
Published:2017-06-05
Updated:2019-10-03
Summary:The hidden-service feature in Tor before 0.3.0.8 allows a denial of service (assertion failure and daemon exit) in the relay_send_end_cell_from_edge_ function via a malformed BEGIN cell.
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)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
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)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
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)
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)
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-617
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-0375

Source: BID
Type: Third Party Advisory, VDB Entry
99017

Source: XF
Type: UNKNOWN
tor-cve20170375-dos(130531)

Source: CCN
Type: Tor GIT Repository
TROVE-2017-004: Fix assertion failure in relay_send_end_cell_from_edge_

Source: CONFIRM
Type: Issue Tracking, Patch, Vendor Advisory
https://github.com/torproject/tor/commit/79b59a2dfcb68897ee89d98587d09e55f07e68d7

Source: CONFIRM
Type: Mailing List, Third Party Advisory
https://lists.torproject.org/pipermail/tor-announce/2017-June/000131.html

Source: CONFIRM
Type: Issue Tracking
https://trac.torproject.org/projects/tor/ticket/22493

Source: CCN
Type: Tor Web site
Tor Project: Anonymity Online

Vulnerable Configuration:Configuration 1:
  • cpe:/a:torproject:tor:*:*:*:*:*:*:*:* (Version < 0.3.0.8)

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20170375
    V
    		CVE-2017-0375
    2022-06-30
    oval:org.opensuse.security:def:113539
    P
    		tor-0.4.6.7-2.2 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106934
    P
    		tor-0.4.6.7-2.2 on GA media (Moderate)
    2021-10-01
    oval:com.ubuntu.trusty:def:20170375000
    V
    		CVE-2017-0375 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-06-09
    oval:com.ubuntu.xenial:def:20170375000
    V
    		CVE-2017-0375 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-06-09
    oval:com.ubuntu.xenial:def:201703750000000
    V
    		CVE-2017-0375 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-06-09
    BACK
    torproject tor *