CVE-2018-14340
Publication date 19 July 2018
Last updated 24 July 2024
Ubuntu priority
In Wireshark 2.6.0 to 2.6.1, 2.4.0 to 2.4.7, and 2.2.0 to 2.2.15, dissectors that support zlib decompression could crash. This was addressed in epan/tvbuff_zlib.c by rejecting negative lengths to avoid a buffer over-read.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| wireshark | 18.04 LTS bionic |
Fixed 2.6.3-1~ubuntu18.04.1
|
| 16.04 LTS xenial |
Fixed 2.6.3-1~ubuntu16.04.1
|
|
| 14.04 LTS trusty |
Fixed 2.6.3-1~ubuntu14.04.1
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
7.5 · High
|
| 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 |