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-server-moduleUpgrade tigervnc-serverUpgrade tigervncUpgrade tigervnc-licenseUpgrade tigervnc-iconsUpgrade tigervnc-debuginfoUpgrade 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-debuginfoUpgrade tigervncUpgrade tigervnc-licenseUpgrade tigervnc-server-debuginfoUpgrade tigervnc-serverUpgrade tigervnc-iconsUpgrade tigervnc-server-appletUpgrade tigervnc-server-minimal-debuginfoUpgrade tigervnc-debugsourceUpgrade tigervnc-server-module-debuginfoUpgrade tigervnc-server-minimalUpgrade tigervnc-server-module | 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-licenseUpgrade tigervnc-iconsUpgrade tigervncUpgrade tigervnc-serverUpgrade tigervnc-server-minimal | 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-iconsUpgrade tigervnc-server-minimalUpgrade tigervnc-serverUpgrade tigervncUpgrade tigervnc-license | Feb 3, 2021 | Dec 26, 2019 |
| Huawei Euleros 2_0_sp8 | — | Upgrade tigervnc-licenseUpgrade tigervncUpgrade tigervnc-serverUpgrade tigervnc-server-minimalUpgrade tigervnc-icons | 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 tigervncUpgrade tigervnc-server-appletUpgrade tigervnc-licenseUpgrade tigervnc-serverUpgrade tigervnc-server-minimalUpgrade tigervnc-server-moduleUpgrade tigervnc-icons | Oct 7, 2020 | Dec 20, 2019 |
| Redhat_linux | — | Upgrade tigervnc-debugsourceUpgrade tigervnc-server-moduleUpgrade tigervnc-licenseUpgrade tigervnc-serverUpgrade tigervncUpgrade tigervnc-server-minimal-debuginfoUpgrade tigervnc-server-debuginfoUpgrade tigervnc-server-module-debuginfoNo solution existsUpgrade tigervnc-server-appletUpgrade tigervnc-iconsUpgrade tigervnc-server-minimalUpgrade tigervnc-debuginfo | Apr 20, 2020 | Dec 26, 2019 |
| Suse | — | Upgrade libXvnc-develUpgrade tigervnc-x11vncUpgrade xorg-x11-Xvnc-novncUpgrade xorg-x11-xvncUpgrade libXvnc1Upgrade xorg-x11-Xvnc-javaUpgrade tigervncUpgrade xorg-x11-Xvnc-module | Jan 22, 2020 | Dec 26, 2019 |
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