CVE-2021-23239: Race Condition

Published Jan 12, 2021
·
Updated

The sudoedit personality of Sudo before 1.9.5 may allow a local unprivileged user to perform arbitrary directory-existence tests by winning a sudoedit.c race condition in replacing a user-controlled directory by a symlink to an arbitrary path.

Affected Software

8 affected components
Sudo Project Sudo<1.8.32
Sudo Project Sudo>=1.9.0<1.9.5
NetApp Cloud Backup
NetApp Hci Management Node
NetApp Solidfire
Fedoraproject Fedora=32
Fedoraproject Fedora=33
Debian Debian Linux=10.0

Event History

Jan 12, 2021
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
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Frequently Asked Questions

1

What is CVE-2021-23239?

CVE-2021-23239 is a vulnerability in the sudoedit personality of Sudo before version 1.9.5 that may allow a local unprivileged user to perform arbitrary directory-existence tests.

2

How does CVE-2021-23239 affect Sudo?

CVE-2021-23239 affects Sudo versions before 1.9.5.

3

What is the severity of CVE-2021-23239?

CVE-2021-23239 has a severity level of Low with a score of 2.5.

4

Which software are affected by CVE-2021-23239?

Sudo versions before 1.9.5, Netapp Cloud Backup, Netapp Hci Management Node, Netapp Solidfire, Fedora 32, Fedora 33, Debian Linux 10.0 are affected by CVE-2021-23239.

5

How can the CVE-2021-23239 vulnerability be mitigated?

To mitigate the CVE-2021-23239 vulnerability, users should update their Sudo installations to version 1.9.5 or later.

Contact

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