CVE-2020-17380

medium

Description

A heap-based buffer overflow was found in QEMU through 5.0.0 in the SDHCI device emulation support. It could occur while doing a multi block SDMA transfer via the sdhci_sdma_transfer_multi_blocks() routine in hw/sd/sdhci.c. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code with privileges of the QEMU process on the host.

References

http://www.openwall.com/lists/oss-security/2021/03/09/1

https://bugzilla.redhat.com/show_bug.cgi?id=1862167

https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html

https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg01175.html

https://security.netapp.com/advisory/ntap-20210312-0003/

Details

Source: MITRE

Published: 2021-01-30

Updated: 2021-04-11

Type: CWE-787

Risk Information

CVSS v2

Base Score: 4.6

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 6.3

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

Impact Score: 3.7

Exploitability Score: 2

Severity: MEDIUM