ALPINE-CVE-2021-3420

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Source
https://security.alpinelinux.org/vuln/CVE-2021-3420
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3420.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2021-3420
Upstream
Published
2021-03-05T21:15:13Z
Modified
2026-11-03T06:32:58Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in newlib in versions prior to 4.0.0. Improper overflow validation in the memory allocation functions mEMALIGn, pvALLOc, nano_memalign, nano_valloc, nano_pvalloc could case an integer overflow, leading to an allocation of a small buffer and then to a heap-based buffer overflow.

References

Affected packages

Alpine:v3.14
newlib

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.1.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3420.json"
Alpine:v3.15
newlib

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.1.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3420.json"
Alpine:v3.16
newlib

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.1.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3420.json"
Alpine:v3.17
newlib

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.1.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3420.json"
Alpine:v3.18
newlib

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.1.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3420.json"
Alpine:v3.19
newlib

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.1.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3420.json"
Alpine:v3.20
newlib

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.1.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3420.json"
Alpine:v3.21
newlib

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.1.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3420.json"
Alpine:v3.22
newlib

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.1.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3420.json"
Alpine:v3.23
newlib

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.1.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3420.json"
Alpine:v3.24
newlib

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.1.0-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3420.json"