Filtered by vendor Qemu
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Total
392 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2020-25723 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2022-09-30 | 2.1 LOW | 3.2 LOW |
| A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service. | |||||
| CVE-2020-29443 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2022-09-30 | 3.3 LOW | 3.9 LOW |
| ide_atapi_cmd_reply_end in hw/ide/atapi.c in QEMU 5.1.0 allows out-of-bounds read access because a buffer index is not validated. | |||||
| CVE-2022-2962 | 1 Qemu | 1 Qemu | 2022-09-30 | N/A | 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-2021-20181 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2022-09-30 | 6.9 MEDIUM | 7.5 HIGH |
| A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability. | |||||
| CVE-2021-3527 | 3 Debian, Qemu, Redhat | 3 Debian Linux, Qemu, Enterprise Linux | 2022-09-30 | 2.1 LOW | 5.5 MEDIUM |
| A flaw was found in the USB redirector device (usb-redir) of QEMU. Small USB packets are combined into a single, large transfer request, to reduce the overhead and improve performance. The combined size of the bulk transfer is used to dynamically allocate a variable length array (VLA) on the stack without proper validation. Since the total size is not bounded, a malicious guest could use this flaw to influence the array length and cause the QEMU process to perform an excessive allocation on the stack, resulting in a denial of service. | |||||
| CVE-2021-3409 | 4 Debian, Fedoraproject, Qemu and 1 more | 4 Debian Linux, Fedora, Qemu and 1 more | 2022-09-30 | 4.6 MEDIUM | 5.7 MEDIUM |
| The patch for CVE-2020-17380/CVE-2020-25085 was found to be ineffective, thus making QEMU vulnerable to the out-of-bounds read/write access issues previously found in the SDHCI controller emulation code. This flaw allows a malicious privileged guest to crash the QEMU process on the host, resulting in a denial of service or potential code execution. QEMU up to (including) 5.2.0 is affected by this. | |||||
| CVE-2021-20263 | 1 Qemu | 1 Qemu | 2022-09-30 | 2.1 LOW | 3.3 LOW |
| A flaw was found in the virtio-fs shared file system daemon (virtiofsd) of QEMU. The new 'xattrmap' option may cause the 'security.capability' xattr in the guest to not drop on file write, potentially leading to a modified, privileged executable in the guest. In rare circumstances, this flaw could be used by a malicious user to elevate their privileges within the guest. | |||||
| CVE-2020-15863 | 3 Canonical, Debian, Qemu | 3 Ubuntu Linux, Debian Linux, Qemu | 2022-09-30 | 4.4 MEDIUM | 5.3 MEDIUM |
| hw/net/xgmac.c in the XGMAC Ethernet controller in QEMU before 07-20-2020 has a buffer overflow. This occurs during packet transmission and affects the highbank and midway emulated machines. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service or potential privileged code execution. This was fixed in commit 5519724a13664b43e225ca05351c60b4468e4555. | |||||
| CVE-2020-16092 | 4 Canonical, Debian, Opensuse and 1 more | 4 Ubuntu Linux, Debian Linux, Leap and 1 more | 2022-09-30 | 2.1 LOW | 3.8 LOW |
| In QEMU through 5.0.0, an assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could use this flaw to abort the QEMU process on the host, resulting in a denial of service condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c. | |||||
| CVE-2021-4145 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2022-09-28 | 4.9 MEDIUM | 6.5 MEDIUM |
| A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions prior to 6.2.0. The `self` pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to crash the QEMU process on the host when writing data reaches the threshold of mirroring node. | |||||
| CVE-2020-25085 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2022-09-23 | 4.4 MEDIUM | 5.0 MEDIUM |
| QEMU 5.0.0 has a heap-based Buffer Overflow in flatview_read_continue in exec.c because hw/sd/sdhci.c mishandles a write operation in the SDHC_BLKSIZE case. | |||||
| CVE-2020-15469 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2022-09-23 | 2.1 LOW | 2.3 LOW |
| In QEMU 4.2.0, a MemoryRegionOps object may lack read/write callback methods, leading to a NULL pointer dereference. | |||||
| CVE-2020-13253 | 3 Canonical, Debian, Qemu | 3 Ubuntu Linux, Debian Linux, Qemu | 2022-09-23 | 2.1 LOW | 5.5 MEDIUM |
| sd_wp_addr in hw/sd/sd.c in QEMU 4.2.0 uses an unvalidated address, which leads to an out-of-bounds read during sdhci_write() operations. A guest OS user can crash the QEMU process. | |||||
| CVE-2020-15859 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2022-09-23 | 2.1 LOW | 3.3 LOW |
| QEMU 4.2.0 has a use-after-free in hw/net/e1000e_core.c because a guest OS user can trigger an e1000e packet with the data's address set to the e1000e's MMIO address. | |||||
| CVE-2020-25084 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2022-09-23 | 2.1 LOW | 3.2 LOW |
| QEMU 5.0.0 has a use-after-free in hw/usb/hcd-xhci.c because the usb_packet_map return value is not checked. | |||||
| CVE-2020-27617 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2022-09-23 | 4.0 MEDIUM | 6.5 MEDIUM |
| eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest can crash the QEMU process via packet data that lacks a valid Layer 3 protocol. | |||||
| CVE-2020-25625 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2022-09-23 | 4.7 MEDIUM | 5.3 MEDIUM |
| hw/usb/hcd-ohci.c in QEMU 5.0.0 has an infinite loop when a TD list has a loop. | |||||
| CVE-2020-25624 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2022-09-23 | 4.4 MEDIUM | 5.0 MEDIUM |
| hw/usb/hcd-ohci.c in QEMU 5.0.0 has a stack-based buffer over-read via values obtained from the host controller driver. | |||||
| CVE-2021-4206 | 3 Debian, Qemu, Redhat | 3 Debian Linux, Qemu, Enterprise Linux | 2022-09-23 | 4.6 MEDIUM | 8.2 HIGH |
| A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process. | |||||
| CVE-2020-35505 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2022-09-22 | 2.1 LOW | 4.4 MEDIUM |
| A NULL pointer dereference flaw was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0. This issue occurs while handling the 'Information Transfer' command. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability. | |||||