CVE-2021-3527
Summary
| CVE | CVE-2021-3527 |
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| State | PUBLIC |
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| Assigner | [email protected] |
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| Source Priority | CVE Program / NVD first with legacy fallback |
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| Published | 2021-05-26 22:15:00 UTC |
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| Updated | 2022-09-30 15:10:00 UTC |
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| Description | A flaw was found in the USB redirector device (usb-redir) of QEMU. Small USB packets are combined into a single, large transfer request, to reduce the overhead and improve performance. The combined size of the bulk transfer is used to dynamically allocate a variable length array (VLA) on the stack without proper validation. Since the total size is not bounded, a malicious guest could use this flaw to influence the array length and cause the QEMU process to perform an excessive allocation on the stack, resulting in a denial of service. |
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NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|
| usb/redir: avoid dynamic stack allocation (CVE-2021-3527) (7ec54f9e) · Commits · QEMU / QEMU · GitLab |
MISC |
gitlab.com |
|
| CVE-2021-3527 QEMU Vulnerability in NetApp Products | NetApp Product Security |
CONFIRM |
security.netapp.com |
|
| [SECURITY] [DLA 3099-1] qemu security update |
MLIST |
lists.debian.org |
|
| 1955695 – (CVE-2021-3527) CVE-2021-3527 QEMU: usb: unbounded stack allocation in usbredir |
MISC |
bugzilla.redhat.com |
|
| [SECURITY] [DLA 2753-1] qemu security update |
MLIST |
lists.debian.org |
|
| usb: limit combined packets to 1 MiB (CVE-2021-3527) (05a40b17) · Commits · QEMU / QEMU · GitLab |
MISC |
gitlab.com |
|
| QEMU: Multiple Vulnerabilities (GLSA 202208-27) — Gentoo security |
GENTOO |
security.gentoo.org |
|
| oss-security - CVE-2021-3527 QEMU: usb: unbounded stack allocation in usbredir |
MISC |
www.openwall.com |
|
| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 159368 Oracle Enterprise Linux Security Update for qemu (ELSA-2021-9425)
- 159465 Oracle Enterprise Linux Security Update for qemu (ELSA-2021-9425)
- 159566 Oracle Enterprise Linux Security Update for kvm_utils (ELSA-2021-9568)
- 178782 Debian Security Update for qemu (DLA 2753-1)
- 180258 Debian Security Update for qemu (CVE-2021-3527)
- 180995 Debian Security Update for qemu (DLA 3099-1)
- 198432 Ubuntu Security Notification for QEMU vulnerabilities (USN-5010-1)
- 355320 Amazon Linux Security Advisory for qemu : ALAS2-2023-2061
- 501909 Alpine Linux Security Update for qemu
- 502355 Alpine Linux Security Update for qemu
- 671198 EulerOS Security Update for qemu (EulerOS-SA-2022-1034)
- 671203 EulerOS Security Update for qemu (EulerOS-SA-2022-1014)
- 710604 Gentoo Linux QEMU Multiple Vulnerabilities (GLSA 202208-27)
- 750995 SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2021:2813-1)
- 751013 OpenSUSE Security Update for qemu (openSUSE-SU-2021:2789-1)
- 751053 OpenSUSE Security Update for qemu (openSUSE-SU-2021:1202-1)
- 751068 OpenSUSE Security Update for qemu (openSUSE-SU-2021:2858-1)
- 751322 SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2021:3614-1)
- 751323 SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2021:3613-1)
- 751330 OpenSUSE Security Update for qemu (openSUSE-SU-2021:3614-1)
- 751338 SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2021:3635-1)
- 900156 CBL-Mariner Linux Security Update for qemu-kvm 4.2.0
- 903539 Common Base Linux Mariner (CBL-Mariner) Security Update for qemu-kvm (4267)
