A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI I/O requests in the case of an…

Description

A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI I/O requests in the case of an error mptsas_free_request() that does not dequeue the request object 'req' from a pending requests queue. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. Versions between 2.10.0 and 5.2.0 are potentially affected.

Scores

EPSS (exploitation in 30 days)

0.45% · top 61% of all CVEs (7 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.2.

Weakness

• CWE-416 (opens in a new tab)All about CWE-416 and its CVEs

Affected products

• QEMU

  • affected between 2.10.0 and 5.2.0

References (5)

• https://bugzilla.redhat.com/show_bug.cgi?id=1924042 (opens in a new tab)x_refsource_MISCx_transferred
• https://bugs.launchpad.net/qemu/+bug/1914236 (opens in a new tab)x_refsource_MISCx_transferred
• [debian-lts-announce] 20210410 [SECURITY] [DLA 2623-1] qemu security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://security.netapp.com/advisory/ntap-20210507-0001/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2021-3392](https://trackcve.app/badge/CVE-2021-3392.svg)](https://trackcve.app/cve/CVE-2021-3392)

Record last updated 3 Aug 2024, 16:53 UTC.