CVE-2022-2962

 

Published at: - 13-09-2022 10:15

Last modified: - 13-09-2022 10:43

Total changes: - 1

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.

Common Vulnerability Scoring System (CVSS)

-

 

Verification logic

 

Reference

• https://gitlab.com/qemu-project/qemu/-/commit/36a894aeb64a2e02871016da1c37d4a4ca109182
• https://gitlab.com/qemu-project/qemu/-/issues/1171

 

Keywords

NVD

 

CVE-2022-2962

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures