CVE-2021-3608

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.

CVSS Metrics

• v3.1•MEDIUM•Score: 6CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
• v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.04%• Percentile: 11%

Techniques & Countermeasures

• CWE-824•Access of Uninitialized Pointer

  The product accesses or uses a pointer that has not been initialized.

Affected Systems

• debian•debian_linux

  10.0

• fedoraproject•fedora

  34

• qemu•qemu

  < 6.1.0

References (5)

• https://bugzilla.redhat.com/show_bug.cgi?id=1973383
• https://lists.gnu.org/archive/html/qemu-devel/2021-06/msg07926.html
• https://security.netapp.com/advisory/ntap-20220318-0002/
• https://security.gentoo.org/glsa/202208-27
• https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html