Unrated severityNVD Advisory· Published May 26, 2021· Updated Aug 3, 2024
CVE-2021-20196
CVE-2021-20196
Description
A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
5- bugs.launchpad.net/qemu/+bug/1912780mitrex_refsource_MISC
- lists.debian.org/debian-lts-announce/2022/04/msg00002.htmlmitremailing-listx_refsource_MLIST
- lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlmitremailing-listx_refsource_MLIST
- security.netapp.com/advisory/ntap-20210708-0004/mitrex_refsource_CONFIRM
- www.openwall.com/lists/oss-security/2021/01/28/1mitrex_refsource_MISC
News mentions
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