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Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2023-6683 |
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. Published: January 12, 2024; 2:15:11 PM -0500 |
V3.1: 6.5 MEDIUM V2.0:(not available) |
CVE-2023-6693 |
A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtio_net_flush_tx function if guest features VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF are enabled. This could allow a malicious user to overwrite local variables allocated on the stack. Specifically, the `out_sg` variable could be used to read a part of process memory and send it to the wire, causing an information leak. Published: January 02, 2024; 5:15:08 AM -0500 |
V3.1: 5.3 MEDIUM V2.0:(not available) |
CVE-2023-1386 |
A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. When a local user in the guest writes an executable file with SUID or SGID, none of these privileged bits are correctly dropped. As a result, in rare circumstances, this flaw could be used by malicious users in the guest to elevate their privileges within the guest and help a host local user to elevate privileges on the host. Published: July 24, 2023; 12:15:11 PM -0400 |
V3.1: 7.8 HIGH V2.0:(not available) |
CVE-2021-20255 |
A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability. Published: March 09, 2021; 3:15:13 PM -0500 |
V3.1: 5.5 MEDIUM V2.0: 2.1 LOW |
CVE-2017-5957 |
Stack-based buffer overflow in the vrend_decode_set_framebuffer_state function in vrend_decode.c in virglrenderer before 926b9b3460a48f6454d8bbe9e44313d86a65447f, as used in Quick Emulator (QEMU), allows a local guest users to cause a denial of service (application crash) via the "nr_cbufs" argument. Published: March 14, 2017; 10:59:00 AM -0400 |
V3.1: 5.5 MEDIUM V2.0: 2.1 LOW |