Out-of-bounds Write Affecting libguestfs-rsync package, versions <1:1.40.2-25.0.1.module+el8.4.0+20319+6eb4347c
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Test your applications- Snyk ID SNYK-ORACLE8-LIBGUESTFSRSYNC-2585716
- published 10 Apr 2022
- disclosed 8 Dec 2020
Introduced: 8 Dec 2020
CVE-2020-27821 Open this link in a new tabHow to fix?
Upgrade Oracle:8 libguestfs-rsync to version 1:1.40.2-25.0.1.module+el8.4.0+20319+6eb4347c or higher.
This issue was patched in ELSA-2021-9568.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libguestfs-rsync package and not the libguestfs-rsync package as distributed by Oracle.
See How to fix? for Oracle:8 relevant fixed versions and status.
A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.
References
- https://linux.oracle.com/cve/CVE-2020-27821.html
- https://linux.oracle.com/errata/ELSA-2021-1762.html
- https://linux.oracle.com/errata/ELSA-2021-9568.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1902651
- http://www.openwall.com/lists/oss-security/2020/12/16/6
- https://security.netapp.com/advisory/ntap-20210115-0006/
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html