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Date: Wed, 27 May 2020 12:55:43 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: Alexander Bulekov <>
Subject: CVE-2020-13253 QEMU: sd: OOB access could crash the guest resulting
 in DoS


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:

This issue was reported by Alexander Bulekov(CC'd). 'CVE-2020-13253' requested 
via ->

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

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