DEBIAN-CVE-2021-23240

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Source
https://security-tracker.debian.org/tracker/CVE-2021-23240
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-23240.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-23240
Upstream
Published
2021-01-12T09:15:14.107Z
Modified
2025-11-14T03:18:32.728185Z
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

selinuxeditcopy_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

Debian:11 / sudo

Package

Name
sudo
Purl
pkg:deb/debian/sudo?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.9.5-1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Debian:12 / sudo

Package

Name
sudo
Purl
pkg:deb/debian/sudo?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.9.5-1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Debian:13 / sudo

Package

Name
sudo
Purl
pkg:deb/debian/sudo?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.9.5-1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Debian:14 / sudo

Package

Name
sudo
Purl
pkg:deb/debian/sudo?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.9.5-1

Ecosystem specific 

{
    "urgency": "unimportant"
}