ALPINE-CVE-2021-3527

See a problem?
Please try reporting it to the source first.
Source
https://security.alpinelinux.org/vuln/CVE-2021-3527
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3527.json
JSON Data
https://api.test.osv.dev/v1/vulns/ALPINE-CVE-2021-3527
Upstream
Published
2021-05-26T22:15:08Z
Modified
2026-10-27T08:33:36Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Alpine:v3.14
qemu

Package

Name
qemu
Purl
pkg:apk/alpine/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.0-r2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3527.json"
Alpine:v3.15
qemu

Package

Name
qemu
Purl
pkg:apk/alpine/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.0-r2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3527.json"
Alpine:v3.16
qemu

Package

Name
qemu
Purl
pkg:apk/alpine/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.0-r2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3527.json"
Alpine:v3.17
qemu

Package

Name
qemu
Purl
pkg:apk/alpine/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.0-r2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3527.json"
Alpine:v3.18
qemu

Package

Name
qemu
Purl
pkg:apk/alpine/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.0-r2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3527.json"
Alpine:v3.19
qemu

Package

Name
qemu
Purl
pkg:apk/alpine/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.0-r2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3527.json"
Alpine:v3.20
qemu

Package

Name
qemu
Purl
pkg:apk/alpine/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.0-r2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3527.json"
Alpine:v3.21
qemu

Package

Name
qemu
Purl
pkg:apk/alpine/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.0-r2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3527.json"
Alpine:v3.22
qemu

Package

Name
qemu
Purl
pkg:apk/alpine/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.0-r2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3527.json"
Alpine:v3.23
qemu

Package

Name
qemu
Purl
pkg:apk/alpine/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.0-r2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3527.json"
Alpine:v3.24
qemu

Package

Name
qemu
Purl
pkg:apk/alpine/qemu?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.0-r2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3527.json"