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Qemu : Security Vulnerabilities

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2022-4172 190 Overflow 2022-11-29 2023-01-27
0.0
 None ??? ??? ??? ??? ??? ???
An integer overflow and buffer overflow issues were found in the ACPI Error Record Serialization Table (ERST) device of QEMU in the read_erst_record() and write_erst_record() functions. Both issues may allow the guest to overrun the host buffer allocated for the ERST memory device. A malicious guest could use these flaws to crash the QEMU process on the host.
2 CVE-2022-4144 125 DoS 2022-11-29 2023-01-27
0.0
 None ??? ??? ??? ??? ??? ???
An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.
3 CVE-2022-3872 193 DoS 2022-11-07 2022-12-15
0.0
 None ??? ??? ??? ??? ??? ???
An off-by-one read/write issue was found in the SDHCI device of QEMU. It occurs when reading/writing the Buffer Data Port Register in sdhci_read_dataport and sdhci_write_dataport, respectively, if data_count == block_size. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
4 CVE-2022-3165 191 DoS 2022-10-17 2023-01-20
0.0
 None ??? ??? ??? ??? ??? ???
An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service.
5 CVE-2022-2962 787 DoS Overflow 2022-09-13 2022-09-30
0.0
 None ??? ??? ??? ??? ??? ???
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.
6 CVE-2022-0358 273 +Priv 2022-08-29 2022-12-09
0.0
 None ??? ??? ??? ??? ??? ???
A flaw was found in the QEMU virtio-fs shared file system daemon (virtiofsd) implementation. This flaw is strictly related to CVE-2018-13405. A local guest user can create files in the directories shared by virtio-fs with unintended group ownership in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of the group. This could allow a malicious unprivileged user inside the guest to gain access to resources accessible to the root group, potentially escalating their privileges within the guest. A malicious local user in the host might also leverage this unexpected executable file created by the guest to escalate their privileges on the host system.
7 CVE-2022-0216 416 DoS 2022-08-26 2022-12-08
0.0
 None ??? ??? ??? ??? ??? ???
A use-after-free vulnerability was found in the LSI53C895A SCSI Host Bus Adapter emulation of QEMU. The flaw occurs while processing repeated messages to cancel the current SCSI request via the lsi_do_msgout function. This flaw allows a malicious privileged user within the guest to crash the QEMU process on the host, resulting in a denial of service.
8 CVE-2021-4158 476 DoS 2022-08-24 2022-09-19
0.0
 None ??? ??? ??? ??? ??? ???
A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
9 CVE-2021-3929 416 DoS 2022-08-25 2022-10-01
0.0
 None ??? ??? ??? ??? ??? ???
A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.
10 CVE-2021-3735 400 DoS 2022-08-26 2022-09-01
0.0
 None ??? ??? ??? ??? ??? ???
A deadlock issue was found in the AHCI controller device of QEMU. It occurs on a software reset (ahci_reset_port) while handling a host-to-device Register FIS (Frame Information Structure) packet from the guest. A privileged user inside the guest could use this flaw to hang the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability.
11 CVE-2020-14394 835 DoS 2022-08-17 2022-12-14
0.0
 None ??? ??? ??? ??? ??? ???
An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.
12 CVE-2014-0148 835 2022-09-29 2022-10-03
0.0
 None ??? ??? ??? ??? ??? ???
Qemu before 2.0 block driver for Hyper-V VHDX Images is vulnerable to infinite loops and other potential issues when calculating BAT entries, due to missing bounds checks for block_size and logical_sector_size variables. These are used to derive other fields like 'sectors_per_block' etc. A user able to alter the Qemu disk image could ise this flaw to crash the Qemu instance resulting in DoS.
13 CVE-2014-0147 190 2022-09-29 2022-10-03
0.0
 None ??? ??? ??? ??? ??? ???
Qemu before 1.6.2 block diver for the various disk image formats used by Bochs and for the QCOW version 2 format, are vulnerable to a possible crash caused by signed data types or a logic error while creating QCOW2 snapshots, which leads to incorrectly calling update_refcount() routine.
14 CVE-2014-0144 20 Exec Code Overflow Mem. Corr. 2022-09-29 2022-10-03
0.0
 None ??? ??? ??? ??? ??? ???
QEMU before 2.0.0 block drivers for CLOOP, QCOW2 version 2 and various other image formats are vulnerable to potential memory corruptions, integer/buffer overflows or crash caused by missing input validations which could allow a remote user to execute arbitrary code on the host with the privileges of the QEMU process.
Total number of vulnerabilities : 14   Page : 1 (This Page)
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