Medium severity6.5NVD Advisory· Published Jan 12, 2024· Updated Jun 17, 2026
CVE-2023-6683
CVE-2023-6683
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
41- Red Hat/Red Hat Enterprise Linux 8 Advanced Virtualizationv5cpe:/a:redhat:advanced_virtualization:8::el8
cpe:/a:redhat:enterprise_linux:8::appstream+ 3 more
- cpe:/a:redhat:enterprise_linux:8::appstreamrange: 8100020240314161907.e155f54d
- cpe:/a:redhat:enterprise_linux:9::appstreamrange: 17:8.2.0-11.el9_4
- cpe:/o:redhat:enterprise_linux:6
- cpe:/o:redhat:enterprise_linux:7
- osv-coords35 versionspkg:rpm/almalinux/qemu-guest-agentpkg:rpm/almalinux/qemu-imgpkg:rpm/almalinux/qemu-kvmpkg:rpm/almalinux/qemu-kvm-audio-papkg:rpm/almalinux/qemu-kvm-block-blkiopkg:rpm/almalinux/qemu-kvm-block-curlpkg:rpm/almalinux/qemu-kvm-block-rbdpkg:rpm/almalinux/qemu-kvm-commonpkg:rpm/almalinux/qemu-kvm-corepkg:rpm/almalinux/qemu-kvm-device-display-virtio-gpupkg:rpm/almalinux/qemu-kvm-device-display-virtio-gpu-ccwpkg:rpm/almalinux/qemu-kvm-device-display-virtio-gpu-pcipkg:rpm/almalinux/qemu-kvm-device-display-virtio-vgapkg:rpm/almalinux/qemu-kvm-device-usb-hostpkg:rpm/almalinux/qemu-kvm-device-usb-redirectpkg:rpm/almalinux/qemu-kvm-docspkg:rpm/almalinux/qemu-kvm-toolspkg:rpm/almalinux/qemu-kvm-ui-egl-headlesspkg:rpm/almalinux/qemu-kvm-ui-openglpkg:rpm/almalinux/qemu-pr-helperpkg:rpm/opensuse/qemu&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/qemu&distro=openSUSE%20Leap%20Micro%205.3pkg:rpm/opensuse/qemu&distro=openSUSE%20Leap%20Micro%205.4pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Micro%205.4pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP5pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP5pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/qemu&distro=SUSE%20Manager%20Proxy%204.3pkg:rpm/suse/qemu&distro=SUSE%20Manager%20Server%204.3
< 17:8.2.0-11.el9_4+ 34 more
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 17:8.2.0-11.el9_4
- (no CPE)range: < 7.1.0-150500.49.15.1
- (no CPE)range: < 6.2.0-150400.37.29.1
- (no CPE)range: < 6.2.0-150400.37.29.1
- (no CPE)range: < 6.2.0-150400.37.29.1
- (no CPE)range: < 6.2.0-150400.37.29.1
- (no CPE)range: < 6.2.0-150400.37.29.1
- (no CPE)range: < 6.2.0-150400.37.29.1
- (no CPE)range: < 7.1.0-150500.49.15.1
- (no CPE)range: < 7.1.0-150500.49.15.1
- (no CPE)range: < 7.1.0-150500.49.15.1
- (no CPE)range: < 7.1.0-150500.49.15.1
- (no CPE)range: < 6.2.0-150400.37.29.1
- (no CPE)range: < 6.2.0-150400.37.29.1
- (no CPE)range: < 6.2.0-150400.37.29.1
- (no CPE)range: < 6.2.0-150400.37.29.1
Patches
Vulnerability mechanics
References
5- bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatch
- access.redhat.com/errata/RHSA-2024:2135nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2024:2962nvdThird Party Advisory
- access.redhat.com/security/cve/CVE-2023-6683nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20240223-0001/nvdThird Party Advisory
News mentions
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