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CVE-2015-6855

Publication date 11 September 2015

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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 WIN_READ_NATIVE_MAX command to an empty drive, which triggers a divide-by-zero error and instance crash.

Status

Package Ubuntu Release Status
qemu 15.04 vivid
Fixed 1:2.2+dfsg-5expubuntu9.5
14.04 LTS trusty
Fixed 2.0.0+dfsg-2ubuntu1.19
12.04 LTS precise Not in release
qemu-kvm 15.04 vivid Not in release
14.04 LTS trusty Not in release
12.04 LTS precise
Fixed 1.0+noroms-0ubuntu14.25

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
qemu

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H