An issue was discovered in ide_dma_cb() in hw/ide/core.c in QEMU 2.4.0 through 4.2.0. The guest system can crash the QEMU process in the host system via a special SCSI_IOCTL_SEND_COMMAND. It hits an assertion that implies that the size of successful DMA transfers there must be a multiple of 512 (the size of a sector). NOTE: a member of the QEMU security team disputes the significance of this issue because a "privileged guest user has many ways to cause similar DoS effect without triggering this assert.

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QEMU 'ide_dma_cb()' function denial of service vulnerability

QEMU Quick Emulator is a set of simulation processor software by French software developer Fabrice Bellard. The software is fast, cross-platform and other characteristics. A security vulnerability exists in the 'idedmacb' function in the hw/ide/core.c file in QEMU versions 2.4.0 through 4.2.0. An...

DEBIAN-CVE-2019-20175

An issue was discovered in idedmacb in hw/ide/core.c in QEMU 2.4.0 through 4.2.0. The guest system can crash the QEMU process in the host system via a special SCSIIOCTLSENDCOMMAND. It hits an assertion that implies that the size of successful DMA transfers there must be a multiple of 512 the size...

DEBIAN-CVE-2015-6855

hw/ide/core.c in QEMU does not properly restrict the commands accepted by an ATAPI device, which allows guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WINREADNATIVEMAX command to an empty drive, which triggers a...

QEMU 'hw/ide/core.c' Denial of Service Vulnerability

QEMU is a suite of analog processor software developed by French programmer Fabrice Bellard. A denial of service vulnerability exists in QEMU. An attacker could exploit this vulnerability to crash a QEMU instance, causing a denial of service...

UBUNTU-CVE-2015-6855

hw/ide/core.c in QEMU does not properly restrict the commands accepted by an ATAPI device, which allows guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WINREADNATIVEMAX command to an empty drive, which triggers a...

PT-2014-4951 · Qemu +5 · Qemu +5

Name of the Vulnerable Software and Affected Versions: QEMU versions prior to 2.0 Description: The issue is caused by an off-by-one error in the cmd smart function in the smart self test in hw/ide/core.c. This error can be triggered by a SMART EXECUTE OFFLINE command, leading to a buffer underflo...