PT-2021-7332 · Qemu+5 · Qemu+5

Mauro Matteo Cascella · Published 2021-06-17 · Updated 2024-06-15 · CVE-2021-3608

Positive Technologies (AI Summary)

CVSS v3.1

6.0

Medium

Base vector

AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions QEMU versions prior to 6.1.0

Description The issue is related to a flaw in the QEMU implementation of VMWare's paravirtual RDMA device, which may result in a crash of QEMU or cause undefined behavior due to the access of an uninitialized pointer. This could allow an attacker to cause a denial of service.

Recommendations For versions prior to 6.1.0, update to version 6.1.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the paravirtual RDMA device to minimize the risk of exploitation.

Fix

Access of Uninitialized Pointer

Weakness Enumeration

CWE-824

Related Identifiers

ALT-PU-2021-2713

ALT-PU-2021-3363

BDU:2022-05706

CVE-2021-3608

DLA-3099-1

OESA-2022-1617

OPENSUSE-SU-2021:1202-1

OPENSUSE-SU-2021:2442-1

OPENSUSE-SU-2021:2474-1

OPENSUSE-SU-2021:2591-1

OPENSUSE-SU-2021_1202-1

OPENSUSE-SU-2021_2442-1

OPENSUSE-SU-2021_2474-1

OPENSUSE-SU-2021_2591-1

OPENSUSE-SU-2024:11287-1

SUSE-SU-2021:2442-1

SUSE-SU-2021:2448-1

SUSE-SU-2021:2474-1

SUSE-SU-2021:2591-1

USN-5010-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Qemu

Suse

Ubuntu

References · 225

• https://ubuntu.com/security/CVE-2021-3527 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3392 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-35505 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:2591-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3546 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-3608 · Vendor Advisory
• https://lists.gnu.org/archive/html/qemu-devel/2021-06/msg07926.html · Patch
• https://osv.dev/vulnerability/openSUSE-SU-2021:2442-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-05706 · Security Note
• https://linux.oracle.com/errata/ELSA-2021-9568.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5010-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3594 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-3608 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2021:1202-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2022-0819SE17 · Vendor Advisory