CVEvulnerability
CVE-2021-3416
6.0 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-03-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.0 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-835
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.
Affected configurations
• qemu qemu (<= 5.2.0)
• fedoraproject fedora 33
• redhat enterprise linux 6.0
• redhat enterprise linux 7.0
• redhat enterprise linux 8.0
• debian debian linux 9.0
• debian debian linux 10.0
Related
Weakness · CWE (1)
- CWE-835 Loop with Unreachable Exit Condition weakness
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1932827 Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202208-27 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210507-0002/ Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/26/1 Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1932827 Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202208-27 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210507-0002/ Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/26/1 Mailing List, Patch, Third Party Advisory