CVE-2021-3416

 

Published at: - 18-03-2021 09:15

Last modified: - 05-09-2022 08:15

Total changes: - 8

Description

A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU in versions up to and including 5.2.0. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the host resulting in DoS scenario.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

 

Verification logic

 

Reference

• https://bugzilla.redhat.com/show_bug.cgi?id=1932827
• https://www.openwall.com/lists/oss-security/2021/02/26/1
• [debian-lts-announce] 20210410 [SECURITY] [DLA 2623-1] qemu security update-Mailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210507-0002/
• GLSA-202208-27-
• [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update-

 

Keywords

NVD

 

CVE-2021-3416

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures