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CVE-2021-20221
MEDIUM6.0
Description
An out-of-bounds heap buffer access issue was found in the ARM Generic Interrupt Controller emulator of QEMU up to and including qemu 4.2.0on aarch64 platform. The issue occurs because while writing an interrupt ID to the controller memory area, it is not masked to be 4 bits wide. It may lead to the said issue while updating controller state fields and their subsequent processing. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.
CVE Details
CVSS v3.1 Score6.0
SeverityMEDIUM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Attack VectorLOCAL
ComplexityLOW
Privileges RequiredHIGH
User InteractionNONE
Published5/13/2021
Last Modified11/21/2024
Sourcenvd
Honeypot Sightings0
Affected Products
debian:debian_linuxqemu:qemuredhat:enterprise_linux
Weaknesses (CWE)
CWE-125CWE-787
References
http://www.openwall.com/lists/oss-security/2021/02/05/1(secalert@redhat.com)
https://bugzilla.redhat.com/show_bug.cgi?id=1924601(secalert@redhat.com)
https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html(secalert@redhat.com)
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html(secalert@redhat.com)
https://security.netapp.com/advisory/ntap-20210708-0005/(secalert@redhat.com)
http://www.openwall.com/lists/oss-security/2021/02/05/1(af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1924601(af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html(af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html(af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20210708-0005/(af854a3a-2127-422b-91ae-364da2661108)
IOC Correlations
No correlations recorded
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