CVE-2017-14176
Publication date 5 September 2017
Last updated 24 July 2024
Ubuntu priority
Bazaar through 2.7.0, when Subprocess SSH is used, allows remote attackers to execute arbitrary commands via a bzr+ssh URL with an initial dash character in the hostname, a related issue to CVE-2017-9800, CVE-2017-12836, CVE-2017-12976, CVE-2017-16228, CVE-2017-1000116, and CVE-2017-1000117.
From the Ubuntu Security Team
Adam Collard discovered that Bazaar did not properly handle host names in 'bzr+ssh://' URLs. A remote attacker could use this to construct a bazaar repository URL that when accessed could run arbitrary code with the privileges of the user.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| bzr | ||
| 16.04 LTS xenial |
Fixed 2.7.0-2ubuntu3.1
|
|
| 14.04 LTS trusty |
Fixed 2.6.0+bzr6593-1ubuntu1.6
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
8.8 · High
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-3411-2
- Bazaar vulnerability
- 24 October 2017