CVE-2019-15693
Publication date 26 December 2019
Last updated 26 August 2025
Ubuntu priority
Cvss 3 Severity Score
Description
TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which occurs in TightDecoder::FilterGradient. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| tigervnc | 25.10 questing |
Not affected
|
| 25.04 plucky |
Not affected
|
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | High |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
References
Other references
- https://www.openwall.com/lists/oss-security/2019/12/20/2
- https://github.com/TigerVNC/tigervnc/commit/b4ada8d0c6dac98c8b91fc64d112569a8ae5fb95 (master)
- https://github.com/TigerVNC/tigervnc/commit/46c081926efd83c90a45c0a96b1b5bc1927e1346 (v1.10.1)
- https://github.com/CendioOssman/tigervnc/commit/b4ada8d0c6dac98c8b91fc64d112569a8ae5fb95
- https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1
- https://www.cve.org/CVERecord?id=CVE-2019-15693