# CVE-2021-20208: cifs-utils: A flaw was found in cifs-utils in versions before 6.13

CVE-2021-20208 is fixed in cifs-utils on 1 platform, first by cifs-utils 2:6.8-1ubuntu1.2, released April 27, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-20208
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0067
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 19, 2021

## Description

A flaw was found in cifs-utils in versions before 6.13. A user when mounting a krb5 CIFS file system from within a container can use Kerberos credentials of the host. The highest threat from this vulnerability is to data confidentiality and integrity.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | cifs-utils Ubuntu 18.04.6 LTS (bionic) | 2:6.8-1ubuntu1.2 | [cifs-utils 2:6.8-1ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-cifs-utils-2-6.8-1ubuntu1.2.md) | Apr 27, 2022 |
| Linux | cifs-utils Ubuntu 20.04 LTS (focal) | 2:6.9-1ubuntu0.2 | [cifs-utils 2:6.9-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-cifs-utils-2-6.9-1ubuntu0.2.md) | Apr 27, 2022 |

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