TigerVNC version prior to 1.10.1 is vulnerable to stack use-after-return, which occurs due to incorrect usage of stack memory in ZRLEDecoder. If decoding routine would throw an exception, ZRLEDecoder may try to access stack variable, which has been already freed during the process of stack unwinding. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
CVSS Details
- CVSS 3.1 Base Score: 7.2
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade tigervnc-serverUpgrade tigervncUpgrade tigervnc-server-moduleUpgrade tigervnc-debuginfoUpgrade tigervnc-licenseUpgrade tigervnc-iconsUpgrade tigervnc-server-minimalUpgrade tigervnc-server-applet | Oct 28, 2020 | Dec 26, 2019 |
| Amazon_linux | — | Upgrade tigervnc | Dec 19, 2020 | Dec 26, 2019 |
| Centos_linux | — | Upgrade tigervnc-iconsUpgrade tigervnc-server-appletUpgrade tigervnc-serverUpgrade tigervnc-server-module-debuginfoUpgrade tigervnc-debugsourceUpgrade tigervnc-server-minimalUpgrade tigervnc-server-minimal-debuginfoUpgrade tigervnc-server-moduleUpgrade tigervncUpgrade tigervnc-debuginfoUpgrade tigervnc-server-debuginfoUpgrade tigervnc-license | Apr 20, 2020 | Dec 26, 2019 |
| Debian | — | Upgrade tigervnc | Jul 30, 2024 | Dec 26, 2019 |
| Gentoo Linux | — | Upgrade net-misc/tigervnc. | Jul 9, 2024 | Dec 26, 2019 |
| Huawei Euleros 2_0_sp2 | — | Upgrade tigervnc-serverUpgrade tigervnc-server-minimalUpgrade tigervnc-licenseUpgrade tigervncUpgrade tigervnc-icons | Feb 22, 2021 | Dec 26, 2019 |
| Huawei Euleros 2_0_sp3 | — | Upgrade tigervncUpgrade tigervnc-iconsUpgrade tigervnc-licenseUpgrade tigervnc-server-minimalUpgrade tigervnc-server | Jan 20, 2021 | Dec 26, 2019 |
| Huawei Euleros 2_0_sp5 | — | Upgrade tigervnc-server-minimalUpgrade tigervnc-iconsUpgrade tigervncUpgrade tigervnc-serverUpgrade tigervnc-license | Feb 3, 2021 | Dec 26, 2019 |
| Huawei Euleros 2_0_sp8 | — | Upgrade tigervncUpgrade tigervnc-licenseUpgrade tigervnc-iconsUpgrade tigervnc-server-minimalUpgrade tigervnc-server | Aug 31, 2020 | Dec 26, 2019 |
| Oracle Solaris | — | Upgrade x11/server/xvnc to version 1.10.1-11.4.21.0.1.69.0 on Solaris 11.4Upgrade desktop/remote-desktop/tigervnc to version 1.10.1-11.4.21.0.1.69.0 on Solaris 11.4 | Jan 19, 2021 | Dec 26, 2019 |
| Oracle_linux | — | Upgrade tigervnc-iconsUpgrade tigervnc-server-moduleUpgrade tigervnc-server-minimalUpgrade tigervncUpgrade tigervnc-licenseUpgrade tigervnc-server-appletUpgrade tigervnc-server | Oct 7, 2020 | Dec 20, 2019 |
| Redhat_linux | — | Upgrade tigervnc-licenseUpgrade tigervnc-server-moduleUpgrade tigervncUpgrade tigervnc-serverUpgrade tigervnc-server-debuginfoUpgrade tigervnc-debugsourceUpgrade tigervnc-server-minimal-debuginfoUpgrade tigervnc-debuginfoUpgrade tigervnc-server-minimalNo solution existsUpgrade tigervnc-server-module-debuginfoUpgrade tigervnc-iconsUpgrade tigervnc-server-applet | Apr 20, 2020 | Dec 26, 2019 |
| Suse | — | Upgrade xorg-x11-Xvnc-javaUpgrade xorg-x11-Xvnc-moduleUpgrade tigervncUpgrade xorg-x11-XvncUpgrade libXvnc-develUpgrade libXvnc1Upgrade xorg-x11-Xvnc-novncUpgrade tigervnc-x11vnc | Jan 22, 2020 | Dec 26, 2019 |
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