oss-security - Re: CVE request Qemu: malicious PRDT flow from guest to host

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Date: Mon, 20 Apr 2015 15:34:06 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: cve-assign@...re.org
cc: oss security list <oss-security@...ts.openwall.com>
Subject: Re: CVE request Qemu: malicious PRDT flow from guest
 to host

  Hi,

+-- On Tue, 24 Mar 2015, P J P wrote --+
| 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

  Could this one get a CVE please?

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F

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