Out-of-bounds Read Affecting qemu-img package, versions <15:4.2.0-48.module+el8.4.0+11909+3300d70f.3
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Test your applications- Snyk ID SNYK-CENTOS8-QEMUIMG-2117461
- published 26 Jul 2021
- disclosed 2 Feb 2021
How to fix?
Upgrade Centos:8 qemu-img to version 15:4.2.0-48.module+el8.4.0+11909+3300d70f.3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu-img package and not the qemu-img package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2021-20221
- https://bugzilla.redhat.com/show_bug.cgi?id=1924601
- https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html
- http://www.openwall.com/lists/oss-security/2021/02/05/1
- https://access.redhat.com/errata/RHSA-2021:3061
- https://security.netapp.com/advisory/ntap-20210708-0005/
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
- https://bugs.launchpad.net/qemu/+bug/1914353
- https://www.openwall.com/lists/oss-security/2021/02/05/1