cve/2021/CVE-2021-3929.md

CVE-2021-3929

Description

A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.

POC

Reference

No PoCs from references.

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/NaInSec/CVE-PoC-in-GitHub
• https://github.com/QiuhaoLi/CVE-2021-3929-3947
• https://github.com/SYRTI/POC_to_review
• https://github.com/Technetium1/stars
• https://github.com/WhooAmii/POC_to_review
• https://github.com/k0mi-tg/CVE-POC
• https://github.com/lemon-mint/stars
• https://github.com/manas3c/CVE-POC
• https://github.com/nomi-sec/PoC-in-GitHub
• https://github.com/trhacknon/Pocingit
• https://github.com/whoforget/CVE-POC
• https://github.com/youwizard/CVE-POC
• https://github.com/zecool/cve