PT-2022-7562 · Qemu+4 · Qemu+4

Published 2022-08-23 · Updated 2024-06-15 · CVE-2022-2962

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions QEMU (affected versions not specified)

Description A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Resource Exhaustion

Weakness Enumeration

CWE-662

CWE-400

Related Identifiers

ALT-PU-2022-3429

ALT-PU-2023-1830

ALT-PU-2023-1869

AZL-10975

AZL-35159

BDU:2024-07318

CVE-2022-2962

OESA-2022-1997

OPENSUSE-SU-2024:12393-1

USN-5772-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Qemu

Ubuntu

References · 28

• 🔥 https://github.com/QiuhaoLi/CVE-2021-3929-3947 · Exploit
• 🔥 https://gitlab.com/qemu-project/qemu/-/issues/1171 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-2962 · Security Note
• https://osv.dev/vulnerability/AZL-10975 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-2962 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:12393-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-0216 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-2962 · Vendor Advisory
• https://gitlab.com/qemu-project/qemu/-/commit/36a894aeb64a2e02871016da1c37d4a4ca109182 · Patch
• https://ubuntu.com/security/CVE-2022-3165 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3682 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-07318 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-2962 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-2962 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3638 · Security Note