CVE-2020-13253 Information

Description

sd_wp_addr in hw/sd/sd.c in QEMU 4.2.0 uses an unvalidated address which leads to an out-of-bounds read during sdhci_write() operations. A guest OS user can crash the QEMU process.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.openwall.com/lists/oss-security/2020/05/27/2 https://bugzilla.redhat.com/show_bug.cgi?id=1838546 https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05835.html https://security.gentoo.org/glsa/202011-09 https://usn.ubuntu.com/4467-1/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5