CVE-2021-20316
MEDIUM severity · CVSS 6.8 · CWE-362
6.8CVSS MEDIUM
Summary
A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://bugzilla.samba.org/show_bug.cgi?id=14842Advisory
- https://www.samba.org/samba/security/CVE-2021-20316.htmlAdvisory
- https://security-tracker.debian.org/tracker/CVE-2021-20316Advisory
- https://access.redhat.com/security/cve/CVE-2021-20316Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2009673Advisory
- https://security.gentoo.org/glsa/202309-06