CVE-2017-8911
Publication date 12 May 2017
Last updated 25 August 2025
Ubuntu priority
Description
An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This might lead to invalid write operations, controlled by an attacker.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| tnef | ||
| 16.04 LTS xenial |
Fixed 1.4.9-1+deb8u3build0.16.04.1
|
|
| 14.04 LTS trusty |
Fixed 1.4.9-1+deb8u3build0.14.04.1
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
9.8 · Critical
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |