Vulnerability CVE-2021-3608


Published: 2022-02-24

Description:
A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a "PVRDMA_REG_DSRHIGH" write from the guest and may result in a crash of QEMU or cause undefined behavior due to the access of an uninitialized pointer. The highest threat from this vulnerability is to system availability.

Type:

CWE-824

(Access of Uninitialized Pointer)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
QEMU -> QEMU 
Fedoraproject -> Fedora 

 References:
https://lists.gnu.org/archive/html/qemu-devel/2021-06/msg07926.html
https://bugzilla.redhat.com/show_bug.cgi?id=1973383

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