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List:       oss-security
Subject:    [oss-security] CVE-2020-13253 QEMU: sd: OOB access could crash the guest resulting in DoS
From:       P J P <ppandit () redhat ! com>
Date:       2020-05-27 7:37:43
Message-ID: nycvar.YSQ.7.77.849.2005271253030.62159 () xnncv
[Download RAW message or body]

   Hello,

An out-of-bounds read access issue was found in the SD Memory Card emulator of 
the QEMU. It occurs while performing block write commands via sdhci_write(), 
if a guest user has sent 'address' which is OOB of 's->wp_groups'. A guest 
user/process may use this flaw to crash the QEMU process resulting in DoS.

Upstream bug/thread:
   -> https://bugs.launchpad.net/qemu/+bug/1880822
   -> https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05877.html

This issue was reported by Alexander Bulekov(CC'd). 'CVE-2020-13253' requested 
via -> https://cveform.mitre.org/


Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
8685 545E B54C 486B C6EB 271E E285 8B5A F050 DE8D

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