ALPINE-CVE-2021-23240

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Source
https://security.alpinelinux.org/vuln/CVE-2021-23240
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-23240.json
JSON Data
https://api.test.osv.dev/v1/vulns/ALPINE-CVE-2021-23240
Upstream
Published
2021-01-12T09:15:14Z
Modified
2026-08-27T22:17:55Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

selinux_edit_copy_tfiles in sudoedit in Sudo before 1.9.5 allows a local unprivileged user to gain file ownership and escalate privileges by replacing a temporary file with a symlink to an arbitrary file target. This affects SELinux RBAC support in permissive mode. Machines without SELinux are not vulnerable.

References

Affected packages

Alpine:v3.10
sudo

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
1.9.0
Fixed
1.9.5p2-r0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-23240.json"
Alpine:v3.11
sudo

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
1.9.0
Fixed
1.9.5p2-r0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-23240.json"
Alpine:v3.12
sudo

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
1.9.0
Fixed
1.9.5-r0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-23240.json"
Alpine:v3.13
sudo

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
1.9.0
Fixed
1.9.5-r0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-23240.json"
Alpine:v3.14
sudo

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
1.9.0
Fixed
1.9.5-r0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-23240.json"
Alpine:v3.15
sudo

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
1.9.0
Fixed
1.9.5-r0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-23240.json"