CVE-2021-20208
Published: 19 April 2021
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.
Priority
Low
CVSS 3 base score: 6.1
Status
| Package | Release | Status |
|---|---|---|
|
cifs-utils Launchpad, Ubuntu, Debian |
bionic |
Released
(2:6.8-1ubuntu1.2)
|
| focal |
Released
(2:6.9-1ubuntu0.2)
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Ignored
(reached end-of-life)
|
|
| impish |
Not vulnerable
(2:6.11-3.1)
|
|
| jammy |
Not vulnerable
(2:6.14-1build1)
|
|
| precise |
Ignored
(end of ESM support, was needs-triage)
|
|
| trusty |
Needs triage
|
|
| upstream |
Released
(6.14,2:6.11-3.1)
|
|
| xenial |
Needs triage
|
|
|
Patches: upstream: https://git.samba.org/cifs-utils.git/?p=cifs-utils.git;a=commit;h=e461afd8cfa6d0781ae0c5c10e89b6ef1ca6da32 upstream: https://git.samba.org/cifs-utils.git/?p=cifs-utils.git;a=commit;h=7f9711dd902a239c499682015d708f73ec884af2 (regression) |
||
Notes
| Author | Note |
|---|---|
| mdeslaur | per Red Hat bug, 6.13 was missing two important fixes, and 6.14 is required. per Debian, causes a regression, see: https://bugs.debian.org/989080 https://www.spinics.net/lists/linux-cifs/msg21976.html |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20208
- https://lists.samba.org/archive/samba-technical/2021-April/136467.html
- https://ubuntu.com/security/notices/USN-5459-1
- NVD
- Launchpad
- Debian