CVE-2021-20208 — Vulnetix

CVE-2021-20208 PUBLISHED

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.

EPSS 0.27% · 51.0th percentile

Risk Scores

EPSS Score

0.27%

51.0th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:Pro:14.04:LTS	cifs-utils	0, 2:6.0-1ubuntu2
Ubuntu:Pro:16.04:LTS	cifs-utils	2:6.4-1ubuntu1, 0, *
Ubuntu:20.04:LTS	cifs-utils	0, 2:6.9-1, 2:6.9-1ubuntu0.1
Ubuntu:18.04:LTS	cifs-utils	, , 0

Exploit Intelligence

https://bugzilla.redhat.com/show_bug.cgi?id=1921116 (circl)
https://bugzilla.samba.org/show_bug.cgi?id=14651 (circl)
FEDORA-2021-d54e02d1b2 (circl)
FEDORA-2021-c87ed13391 (circl)
FEDORA-2021-b1bb3d3b20 (circl)

Timeline

Apr 19, 2021 CVE Published
Apr 20, 2021 EPSS Score
Jun 28, 2021 EPSS Score
Aug 30, 2021 EPSS Score
Oct 11, 2021 EPSS Score
Oct 31, 2021 EPSS Score
Jan 1, 2022 EPSS Score
Jan 6, 2022 EPSS Score
Feb 4, 2022 EPSS Score
Apr 1, 2022 EPSS Score
May 6, 2022 EPSS Score
Jul 7, 2022 EPSS Score

References

https://ubuntu.com/security/CVE-2021-20208 third-party-advisory
https://lists.samba.org/archive/samba-technical/2021-April/136467.html third-party-advisory
https://ubuntu.com/security/notices/USN-5459-1 vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2021-20208 third-party-advisory
https://ubuntu.com/security/notices/USN-7688-1 vendor-advisory

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