CVEvulnerability
CVE-2021-20255
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-03-09
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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-674, CWE-835
Description
A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Affected configurations
• qemu qemu
• debian debian linux 9.0
Related
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1930646 Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html Mailing List, Third Party Advisory
- https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Feepro100_stackoverflow1 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210507-0003/ Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/25/1 Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1930646 Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html Mailing List, Third Party Advisory
- https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Feepro100_stackoverflow1 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210507-0003/ Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/25/1 Mailing List, Patch, Third Party Advisory