Unrated severityNVD Advisory· Published May 13, 2021· Updated Aug 3, 2024
CVE-2021-20221
CVE-2021-20221
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
5- www.openwall.com/lists/oss-security/2021/02/05/1mitremailing-listx_refsource_MLIST
- bugzilla.redhat.com/show_bug.cgimitrex_refsource_MISC
- lists.debian.org/debian-lts-announce/2021/02/msg00024.htmlmitremailing-listx_refsource_MLIST
- lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlmitremailing-listx_refsource_MLIST
- security.netapp.com/advisory/ntap-20210708-0005/mitrex_refsource_CONFIRM
News mentions
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