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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Kaspersky | TigerVNC | 1.10.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | tigervnc | 1.10.1+dfsg-1 | — |
| Debian 13 | tigervnc | 1.10.1+dfsg-1 | — |
| Debian 12 | tigervnc | 1.10.1+dfsg-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | tigervnc | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | tigervnc +6 | 1.9.0-14.el8_1 | RHSA-2020:1497 |
| RHEL 7 | tigervnc +6 | 1.8.0-21.el7 | RHSA-2020:3875 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | tigervnc | 1.9.0-19.3.1 | SUSE-SU-2020:0113-1 |
| SLES 15 | tigervnc | 1.8.0-13.11.1 | SUSE-SU-2020:0112-1 |
| SLES 12 SP5 | tigervnc | 1.6.0-22.14.1 | SUSE-SU-2020:1749-1 |
| SLES 12 SP4 | tigervnc | 1.6.0-22.14.1 | SUSE-SU-2020:1749-1 |
| SLES 12 SP3 | tigervnc | 1.6.0-18.28.1 | SUSE-SU-2020:0159-1 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | tigervnc | 1.6.0-18.28.1 | SUSE-SU-2020:0159-1 |
| SLES 12 SP1 | tigervnc | 1.4.3-25.11.1 | SUSE-SU-2020:0266-1 |
| SLES for SAP 12 SP5 | tigervnc | 1.6.0-22.14.1 | SUSE-SU-2020:1749-1 |
| SLES for SAP 12 SP4 | tigervnc | 1.6.0-22.14.1 | SUSE-SU-2020:1749-1 |
| SLES for SAP 12 SP3 | tigervnc | 1.6.0-18.28.1 | SUSE-SU-2020:0159-1 |
| SLES for SAP 12 SP2 | tigervnc | 1.6.0-18.28.1 | SUSE-SU-2020:0159-1 |
| SLES for SAP 12 SP1 | tigervnc | 1.4.3-25.11.1 | SUSE-SU-2020:0266-1 |
| SUSE OpenStack Cloud Crowbar 8 | tigervnc | 1.6.0-18.28.1 | SUSE-SU-2020:0159-1 |
| SUSE OpenStack Cloud 8 | tigervnc | 1.6.0-18.28.1 | SUSE-SU-2020:0159-1 |
| SUSE OpenStack Cloud 7 | tigervnc | 1.6.0-18.28.1 | SUSE-SU-2020:0159-1 |
| SUSE HPE Helion OpenStack 8 | tigervnc | 1.6.0-18.28.1 | SUSE-SU-2020:0159-1 |
| SUSE Enterprise Storage 5 | tigervnc | 1.6.0-18.28.1 | SUSE-SU-2020:0159-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | tigervnc | 1.10.1-17.1 | openSUSE-SU-2024:10591-1 |
| openSUSE Leap 15.1 | tigervnc | 1.9.0-lp151.4.3.1 | openSUSE-SU-2020:0087-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | tigervnc +6 | 1.8.0-21.amzn2 | ALAS2-2020-1552 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | tigervnc +6 | 1.9.0-14.el8_1 | ELSA-2020-1497 |
| Oracle Linux 7 | tigervnc +6 | 1.8.0-21.el7 | ELSA-2020-3875 |
Advisories 13
- RHSA-2020:3875 Red Hat Security Advisory: tigervnc security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- SUSE-SU-2020:0266-1 Security update for tigervnc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0159-1 Security update for tigervnc SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0087-1 Security update for tigervnc SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10591-1 libXvnc-devel-1.10.1-17.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0113-1 Security update for tigervnc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0112-1 Security update for tigervnc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1749-1 Security update for tigervnc SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2020:1497 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- WID-SEC-2024-1535 tigervnc: Mehrere Schwachstellen ermöglichen Ausführen von beliebigem Programmcode mit Benutzerrechten BSI CERT-Bund (WID) · Jul 4, 2024
- ALAS2-2020-1552 Low: tigervnc security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 22, 2020
- ELSA-2020-3875 Moderate: tigervnc security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 6, 2020
- ELSA-2020-1497 Moderate: tigervnc security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Apr 18, 2020