CVE-2021-20208: fedoraproject fedora Incorrect Privilege Assignment
CVSS: 6.1v3.1MediumModified
AliasesALPINE-CVE-2021-20208MGASA-2021-0277SUSE-SU-2021:1159-1SUSE-SU-2021:1161-1UBUNTU-CVE-2021-20208DEBIAN-CVE-2021-20208
Published 19-04-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-20208 is a medium (CVSS 6.1) Incorrect Privilege Assignment vulnerability in fedoraproject fedora. EPSS estimates a 0.67% chance of exploitation in the next 30 days, higher than 50.8% of scored vulnerabilities.
CVSS score
6.1/10
010
Medium · v3.1 (NVD)EPSS score
0.67%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 5 · Related 5Timeline
- 19-04-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 4 sources · 2 versionsMedium 6.1Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:NSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:N
- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:N
- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:N
Medium 4.9Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:P/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.67%
Chance of exploitation in the next 30 days
Percentile
51%
Versus all other CVEs
30-day change
0.00 pp
From 0.67% on 18-09-2026
18-09-202618-10-2026
EPSS score0.67%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-266Incorrect Privilege AssignmentA product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
- CWE-269Improper Privilege ManagementThe product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
Affected systems
Suse4 products
- cifs-utils&distro=SUSE Linux Enterprise Module for Basesystem 15 SP2< 6.9-5.9.1
- cifs-utils&distro=SUSE Linux Enterprise Server 12 SP5< 6.9-13.14.1
- cifs-utils&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP5< 6.9-13.14.1
- cifs-utils&distro=SUSE Linux Enterprise Software Development Kit 12 SP5< 6.9-13.14.1
Mageia2 products
- cifs-utils< 6.9-6.2.mga7
- cifs-utils< 6.11-2.1.mga8
Alpine1 product
- cifs-utils≥ 4.0, < 6.13-r0
Debian1 product
- cifs-utils< 2:6.11-3
Fedoraproject1 product
- fedoraEOL33 | 34 | 35
Redhat1 product
- enterprise_linuxEOL7.0 | 8.0
Samba1 product
- cifs-utils≥ 4.0, < 6.13
Ubuntu1 product
- cifs-utils< 2:6.0-1ubuntu2+esm1 | < 2:6.4-1ubuntu1.1+esm1 | < 2:6.8-1ubuntu1.2 | < 2:6.9-1ubuntu0.2
8 vendors · 12 products
