Bug 1205321 - qemu: malicious PRDT flow from guest to host
Summary: qemu: malicious PRDT flow from guest to host
Keywords:
Status: CLOSED DUPLICATE of bug 1204919
Alias: None
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: 1205322 1205323
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-03-24 16:44 UTC by Vasyl Kaigorodov
Modified: 2019-09-29 13:30 UTC (History)
11 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-03-24 17:08:11 UTC
Embargoed:

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Description Vasyl Kaigorodov 2015-03-24 16:44:52 UTC 
Due to inconsistent error checking, Qemu emulator allows malicious PRDT data to flow from a guest to the host's IDE or AHCI controllers. This could result in infinite loop or memory leakage on the host leading to unbounded resource consumption.

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

Upstream fix: http://git.qemu.org/?p=qemu.git;a=commitdiff;h=3251bdcf1c67427d964517053c3d185b46e618e8
CVE request: http://seclists.org/oss-sec/2015/q1/984
Comment 1 Vasyl Kaigorodov 2015-03-24 16:45:22 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1205322]
Affects: epel-all [bug 1205323]
Comment 2 Vasyl Kaigorodov 2015-03-24 17:08:11 UTC 

*** This bug has been marked as a duplicate of bug 1204919 ***
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