Buffer Overflow Affecting qemu-kvm-block-iscsi package, versions <15:4.2.1-18.module+el8.6.0+20690+93de6acb
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Test your applications- Snyk ID SNYK-ORACLE8-QEMUKVMBLOCKISCSI-2975890
- published 2 Aug 2022
- disclosed 29 Apr 2022
How to fix?
Upgrade Oracle:8 qemu-kvm-block-iscsi to version 15:4.2.1-18.module+el8.6.0+20690+93de6acb or higher.
This issue was patched in ELSA-2022-9700.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu-kvm-block-iscsi package and not the qemu-kvm-block-iscsi package as distributed by Oracle.
See How to fix? for Oracle:8 relevant fixed versions and status.
A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values cursor->header.width and cursor->header.height can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.
References
- https://linux.oracle.com/cve/CVE-2021-4207.html
- https://linux.oracle.com/errata/ELSA-2022-9669.html
- https://linux.oracle.com/errata/ELSA-2022-9700.html
- https://linux.oracle.com/errata/ELSA-2022-9862.html
- https://starlabs.sg/advisories/21-4207/
- https://bugzilla.redhat.com/show_bug.cgi?id=2036966
- https://www.debian.org/security/2022/dsa-5133
- https://security.gentoo.org/glsa/202208-27
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html