4.4
CVSSv3

CVE-2016-7421

Published: 10/12/2016 Updated: 12/02/2023
CVSS v2 Base Score: 2.1 | Impact Score: 2.9 | Exploitability Score: 3.9
CVSS v3 Base Score: 4.4 | Impact Score: 3.6 | Exploitability Score: 0.8
VMScore: 187
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Summary

The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit process IO loop to the ring size.

Vulnerability Trend

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qemu qemu

debian debian linux 8.0

Vendor Advisories

Several security issues were fixed in QEMU ...
Debian Bug report logs - #838850 qemu: CVE-2016-7161 Package: src:qemu; Maintainer for src:qemu is Debian QEMU Team <pkg-qemu-devel@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Sun, 25 Sep 2016 18:27:02 UTC Severity: important Tags: patch, security, upstream Found in versions ...
Debian Bug report logs - #838146 qemu: CVE-2016-7422: virtio: null pointer dereference in virtqueue_map_desc Package: src:qemu; Maintainer for src:qemu is Debian QEMU Team <pkg-qemu-devel@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Sat, 17 Sep 2016 17:57:13 UTC Severity: impo ...
Debian Bug report logs - #838147 qemu: CVE-2016-7421: scsi: pvscsi: infinite loop when processing IO requests Package: src:qemu; Maintainer for src:qemu is Debian QEMU Team <pkg-qemu-devel@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Sat, 17 Sep 2016 18:00:01 UTC Severity: nor ...
Debian Bug report logs - #838145 qemu: CVE-2016-7423: scsi: mptsas: OOB access when freeing MPTSASRequest object Package: src:qemu; Maintainer for src:qemu is Debian QEMU Team <pkg-qemu-devel@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Sat, 17 Sep 2016 17:57:09 UTC Severity: ...
The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsic in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit process IO loop to the ring size ...