PT-2020-6480 · Qemu+4 · Qemu+4

Alex · Published 2020-05-27 · Updated 2023-03-16 · CVE-2020-13253

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions QEMU version 4.2.0

Description The issue is related to an out-of-bounds read in the sd wp addr component of QEMU, specifically in the hw/sd/sd.c file. This occurs during sdhci write() operations when an unvalidated address is used. A guest OS user can exploit this to crash the QEMU process. The vulnerability can lead to a denial of service.

Recommendations For QEMU version 4.2.0, consider disabling the sdhci write() function or restricting access to the sd wp addr component until a patch is available. As a temporary workaround, avoid using the sd wp addr component in the hw/sd/sd.c file to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALT-PU-2020-2595

ALT-PU-2021-1880

ALT-PU-2021-1964

BDU:2021-05207

CVE-2020-13253

DLA-2373-1

DLA-3099-1

OESA-2022-1690

OPENSUSE-SU-2022:0210-1

OPENSUSE-SU-2022_0210-1

OPENSUSE-SU-2022_0210-2

SUSE-SU-2022:0210-1

SUSE-SU-2022:0210-2

SUSE-SU-2023:0761-1

USN-4467-1

USN-4467-2

USN-4467-3

Affected Products

Alt Linux

Linuxmint

Qemu

Suse

Ubuntu

References · 82

• https://ubuntu.com/security/CVE-2020-13765 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-13253 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2023:0761-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2022:0210-1 · Vendor Advisory
• http://openwall.com/lists/oss-security/2020/05/27/2 · Patch
• https://osv.dev/vulnerability/USN-4467-3 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05207 · Security Note
• https://linux.oracle.com/errata/ELSA-2021-9034.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-13754 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-13253 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4467-2 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4467-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-14415 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-13253 · Security Note
• https://security.gentoo.org/glsa/202011-09 · Vendor Advisory