NULL Pointer Dereference Affecting qemu-kvm-device-display-virtio-vga package, versions <17:8.2.0-11.el9_4
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Test your applications- Snyk ID SNYK-ALMALINUX9-QEMUKVMDEVICEDISPLAYVIRTIOVGA-6811370
- published 7 May 2024
- disclosed 30 Apr 2024
Introduced: 30 Apr 2024
CVE-2023-6683 Open this link in a new tabHow to fix?
Upgrade AlmaLinux:9 qemu-kvm-device-display-virtio-vga to version 17:8.2.0-11.el9_4 or higher.
This issue was patched in ALSA-2024:2135.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu-kvm-device-display-virtio-vga package and not the qemu-kvm-device-display-virtio-vga package as distributed by AlmaLinux.
See How to fix? for AlmaLinux:9 relevant fixed versions and status.
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. The qemu_clipboard_request() function can be reached before vnc_server_cut_text_caps() was called and had the chance to initialize the clipboard peer, leading to a NULL pointer dereference. This could allow a malicious authenticated VNC client to crash QEMU and trigger a denial of service.
References
- https://errata.almalinux.org/9/ALSA-2024-2135.html
- https://access.redhat.com/security/cve/CVE-2023-6683
- https://access.redhat.com/errata/RHSA-2024:2135
- https://bugzilla.redhat.com/show_bug.cgi?id=2254825
- https://security.netapp.com/advisory/ntap-20240223-0001/
- https://access.redhat.com/errata/RHSA-2024:2962