Bug 1360599 (CVE-2016-6351) - CVE-2016-6351 Qemu: scsi: esp: OOB write access in esp_do_dma
Summary: CVE-2016-6351 Qemu: scsi: esp: OOB write access in esp_do_dma
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2016-6351
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1360600
Blocks: 1346772
TreeView+ depends on / blocked
 
Reported: 2016-07-27 06:42 UTC by Prasad J Pandit
Modified: 2019-09-29 13:54 UTC (History)
35 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-06-08 02:56:33 UTC


Attachments (Terms of Use)

Description Prasad J Pandit 2016-07-27 06:42:35 UTC
Quick Emulator(Qemu) built with the ESP/NCR53C9x controller emulation support 
is vulnerable to an OOB write access issue. It could occur while doing DMA 
read into ESP command buffer 's->cmdbuf'; It could write past the 's->cmdbuf' 
area, if it was transferring more than 16 bytes in esp_do_dma().

A privileged user inside guest could use this flaw to crash the Qemu process 
resulting in DoS OR potentially leverage it to execute arbitrary code with 
privileges of the Qemu process on the host.

Upstream patches:
-----------------
   -> http://git.qemu.org/?p=qemu.git;a=commit;h=926cde5f3e4d2504ed161ed0
   -> http://git.qemu.org/?p=qemu.git;a=commit;h=cc96677469388bad3d664793

Reference:
----------
   -> http://www.openwall.com/lists/oss-security/2016/07/25/14

Comment 1 Prasad J Pandit 2016-07-27 06:43:07 UTC
Acknowledgments:

Name: Li Qiang (360.cn Inc.)

Comment 2 Prasad J Pandit 2016-07-27 06:44:04 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1360600]

Comment 3 Fedora Update System 2016-08-05 20:54:22 UTC
xen-4.6.3-4.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2016-08-08 23:53:28 UTC
xen-4.5.3-9.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.


Note You need to log in before you can comment on or make changes to this bug.