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-licenseUpgrade tigervnc-server-minimalUpgrade tigervnc-iconsUpgrade tigervnc-server-appletUpgrade tigervnc-debuginfoUpgrade tigervnc-serverUpgrade tigervnc-server-moduleUpgrade tigervnc | Oct 28, 2020 | Dec 26, 2019 |
| Amazon_linux | — | Upgrade tigervnc | Dec 19, 2020 | Dec 26, 2019 |
| Centos_linux | — | Upgrade tigervnc-server-moduleUpgrade tigervnc-server-minimal-debuginfoUpgrade tigervnc-debugsourceUpgrade tigervnc-server-module-debuginfoUpgrade tigervnc-server-minimalUpgrade tigervnc-iconsUpgrade tigervnc-serverUpgrade tigervnc-server-appletUpgrade tigervnc-debuginfoUpgrade tigervnc-licenseUpgrade tigervncUpgrade tigervnc-server-debuginfo | 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 tigervncUpgrade tigervnc-iconsUpgrade tigervnc-licenseUpgrade tigervnc-serverUpgrade tigervnc-server-minimal | Feb 22, 2021 | Dec 26, 2019 |
| Huawei Euleros 2_0_sp3 | — | Upgrade tigervnc-licenseUpgrade tigervnc-iconsUpgrade tigervncUpgrade tigervnc-server-minimalUpgrade tigervnc-server | Jan 20, 2021 | Dec 26, 2019 |
| Huawei Euleros 2_0_sp5 | — | Upgrade tigervnc-server-minimalUpgrade tigervnc-iconsUpgrade tigervnc-licenseUpgrade tigervncUpgrade tigervnc-server | Feb 3, 2021 | Dec 26, 2019 |
| Huawei Euleros 2_0_sp8 | — | Upgrade tigervnc-serverUpgrade tigervnc-server-minimalUpgrade tigervnc-iconsUpgrade tigervncUpgrade tigervnc-license | Aug 31, 2020 | Dec 26, 2019 |
| Oracle Solaris | — | Upgrade desktop/remote-desktop/tigervnc to version 1.10.1-11.4.21.0.1.69.0 on Solaris 11.4Upgrade x11/server/xvnc 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-serverUpgrade tigervnc-server-appletUpgrade tigervncUpgrade tigervnc-licenseUpgrade tigervnc-server-minimalUpgrade tigervnc-iconsUpgrade tigervnc-server-module | Oct 7, 2020 | Dec 20, 2019 |
| Redhat_linux | — | Upgrade tigervnc-iconsUpgrade tigervnc-debuginfoNo solution existsUpgrade tigervnc-server-minimalUpgrade tigervnc-server-appletUpgrade tigervnc-server-module-debuginfoUpgrade tigervnc-server-minimal-debuginfoUpgrade tigervnc-debugsourceUpgrade tigervnc-serverUpgrade tigervncUpgrade tigervnc-licenseUpgrade tigervnc-server-debuginfoUpgrade tigervnc-server-module | Apr 20, 2020 | Dec 26, 2019 |
| Suse | — | Upgrade xorg-x11-Xvnc-novncUpgrade libXvnc1Upgrade tigervnc-x11vncUpgrade libXvnc-develUpgrade xorg-x11-XvncUpgrade tigervncUpgrade xorg-x11-Xvnc-javaUpgrade xorg-x11-Xvnc-module | Jan 22, 2020 | Dec 26, 2019 |
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