Bug 1530360 (CVE-2017-18030) - CVE-2017-18030 Qemu: Out-of-bounds access in cirrus_invalidate_region routine
Summary: CVE-2017-18030 Qemu: Out-of-bounds access in cirrus_invalidate_region routine
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-18030
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1534673
Blocks: 1530362
TreeView+ depends on / blocked
 
Reported: 2018-01-02 18:32 UTC by Pedro Sampaio
Modified: 2021-02-17 01:02 UTC (History)
41 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-01-16 10:13:16 UTC
Embargoed:


Attachments (Terms of Use)

Description Pedro Sampaio 2018-01-02 18:32:14 UTC
Quick emulator(Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is
vulnerable to an out-of-bounds access issue. It could occur while refreshing vnc surface area, in case the initial pitch was negative in cirrus_invalidate_region.

A privileged user inside guest could use this flaw to crash the Qemu process
resulting in DoS.

Upstream patch:
---------------
  -> https://git.qemu.org/?p=qemu.git;a=commitdiff;h=f153b563f8cf121aebf5a2fff5f0110faf58ccb3

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2018/01/15/3

Comment 2 Prasad Pandit 2018-01-15 17:36:46 UTC
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1534673]


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