CVE-2017-0376
Published: 9 June 2017
The hidden-service feature in Tor before 0.3.0.8 allows a denial of service (assertion failure and daemon exit) in the connection_edge_process_relay_cell function via a BEGIN_DIR cell on a rendezvous circuit.
From the Ubuntu Security Team
It was discovered that an assertion failure could cause Tor to exit resulting in a denial of service.
Notes
| Author | Note |
|---|---|
| sbeattie | introduced in 0.2.2.1-alpha |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
tor Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
| bionic |
Not vulnerable
(0.3.0.8-1)
|
|
| cosmic |
Not vulnerable
(0.3.0.8-1)
|
|
| trusty |
Released
(0.2.4.27-1ubuntu0.1)
|
|
| upstream |
Released
(0.3.0.8, 0.2.9.11)
|
|
| xenial |
Not vulnerable
(0.2.9.11-1~deb9u1)
|
|
| yakkety |
Ignored
(end of life)
|
|
| zesty |
Ignored
(end of life)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |