Filtered by vendor Qemu Subscriptions
Filtered by product Qemu Subscriptions
Total 414 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2024-8354 2 Qemu, Redhat 3 Qemu, Advanced Virtualization, Enterprise Linux 2024-11-15 5.5 Medium
A flaw was found in QEMU. An assertion failure was present in the usb_ep_get() function in hw/net/core.c when trying to get the USB endpoint from a USB device. This flaw may allow a malicious unprivileged guest user to crash the QEMU process on the host and cause a denial of service condition.
CVE-2024-3567 2 Qemu, Redhat 3 Qemu, Advanced Virtualization, Enterprise Linux 2024-11-15 5.5 Medium
A flaw was found in QEMU. An assertion failure was present in the update_sctp_checksum() function in hw/net/net_tx_pkt.c when trying to calculate the checksum of a short-sized fragmented packet. This flaw allows a malicious guest to crash QEMU and cause a denial of service condition.
CVE-2023-5088 2 Qemu, Redhat 3 Qemu, Advanced Virtualization, Enterprise Linux 2024-11-15 6.4 Medium
A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead (potentially overwriting the VM's boot code). This could be used, for example, by L2 guests with a virtual disk (vdiskL2) stored on a virtual disk of an L1 (vdiskL1) hypervisor to read and/or write data to LBA 0 of vdiskL1, potentially gaining control of L1 at its next reboot.
CVE-2023-3255 3 Fedoraproject, Qemu, Redhat 4 Fedora, Qemu, Advanced Virtualization and 1 more 2024-11-15 6.5 Medium
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.
CVE-2023-3019 2 Qemu, Redhat 4 Qemu, Advanced Virtualization, Enterprise Linux and 1 more 2024-11-15 6 Medium
A DMA reentrancy issue leading to a use-after-free error was found in the e1000e NIC emulation code in QEMU. This issue could allow a privileged guest user to crash the QEMU process on the host, resulting in a denial of service.
CVE-2023-6693 3 Fedoraproject, Qemu, Redhat 4 Fedora, Qemu, Advanced Virtualization and 1 more 2024-11-15 4.9 Medium
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.
CVE-2023-6683 2 Qemu, Redhat 3 Qemu, Advanced Virtualization, Enterprise Linux 2024-11-15 6.5 Medium
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.
CVE-2024-6505 2 Qemu, Redhat 3 Qemu, Advanced Virtualization, Enterprise Linux 2024-11-13 6.8 Medium
A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network card, the indirections_table data within RSS becomes controllable. Setting excessively large values may cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a privileged user in the guest to crash the QEMU process on the host.
CVE-2022-36648 1 Qemu 1 Qemu 2024-10-03 10.0 Critical
The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier, allows remote attackers to crash the host qemu and potentially execute code on the host via execute a malformed program in the guest OS. Note: This has been disputed by multiple third parties as not a valid vulnerability due to the rocker device not falling within the virtualization use case.
CVE-2023-42467 2 Qemu, Redhat 2 Qemu, Enterprise Linux 2024-09-26 5.5 Medium
QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU and the guest immediately.
CVE-2023-1386 3 Fedoraproject, Qemu, Redhat 4 Fedora, Qemu, Advanced Virtualization and 1 more 2024-09-25 3.3 Low
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.
CVE-2023-3180 4 Debian, Fedoraproject, Qemu and 1 more 5 Debian Linux, Fedora, Qemu and 2 more 2024-09-25 6 Medium
A flaw was found in the QEMU virtual crypto device while handling data encryption/decryption requests in virtio_crypto_handle_sym_req. There is no check for the value of `src_len` and `dst_len` in virtio_crypto_sym_op_helper, potentially leading to a heap buffer overflow when the two values differ.
CVE-2023-3301 2 Qemu, Redhat 4 Qemu, Advanced Virtualization, Enterprise Linux and 1 more 2024-09-25 5.6 Medium
A flaw was found in QEMU. The async nature of hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service.
CVE-2017-8284 1 Qemu 1 Qemu 2024-09-16 N/A
The disas_insn function in target/i386/translate.c in QEMU before 2.9.0, when TCG mode without hardware acceleration is used, does not limit the instruction size, which allows local users to gain privileges by creating a modified basic block that injects code into a setuid program, as demonstrated by procmail. NOTE: the vendor has stated "this bug does not violate any security guarantees QEMU makes.
CVE-2022-2962 1 Qemu 1 Qemu 2024-08-22 7.8 High
A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
CVE-2007-6227 1 Qemu 1 Qemu 2024-08-07 N/A
QEMU 0.9.0 allows local users of a Windows XP SP2 guest operating system to overwrite the TranslationBlock (code_gen_buffer) buffer, and probably have unspecified other impacts related to an "overflow," via certain Windows executable programs, as demonstrated by qemu-dos.com.
CVE-2007-5729 3 Debian, Opensuse, Qemu 3 Debian Linux, Opensuse, Qemu 2024-08-07 N/A
The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_TCNT register, which triggers a heap-based buffer overflow in the slirp library, aka NE2000 "mtu" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the mtu overflow vulnerability.
CVE-2007-5730 4 Debian, Qemu, Redhat and 1 more 4 Debian Linux, Qemu, Enterprise Linux and 1 more 2024-08-07 N/A
Heap-based buffer overflow in QEMU 0.8.2, as used in Xen and possibly other products, allows local users to execute arbitrary code via crafted data in the "net socket listen" option, aka QEMU "net socket" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the individual net socket listen vulnerability.
CVE-2007-1321 5 Debian, Fedoraproject, Qemu and 2 more 6 Debian Linux, Fedora, Fedora Core and 3 more 2024-08-07 N/A
Integer signedness error in the NE2000 emulator in QEMU 0.8.2, as used in Xen and possibly other products, allows local users to trigger a heap-based buffer overflow via certain register values that bypass sanity checks, aka QEMU NE2000 "receive" integer signedness error. NOTE: this identifier was inadvertently used by some sources to cover multiple issues that were labeled "NE2000 network driver and the socket code," but separate identifiers have been created for the individual vulnerabilities since there are sometimes different fixes; see CVE-2007-5729 and CVE-2007-5730.
CVE-2007-1366 2 Debian, Qemu 2 Debian Linux, Qemu 2024-08-07 N/A
QEMU 0.8.2 allows local users to crash a virtual machine via the divisor operand to the aam instruction, as demonstrated by "aam 0x0," which triggers a divide-by-zero error.