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CVE-2016-10318

A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the...

6.5 MediumFix available

A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

2.16%Up 1.2 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 6.5

A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.

Record
CVE-2016-10318
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
4.0 MediumAV:N/AC:L/Au:S/C:N/I:N/A:P
Weakness
CWE-264
Updated
2026-11-02
CVE List No score

A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.

Record
CVE-2016-10318
Updated
2026-11-02
EUVDEUVD-2016-1503 No score

A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.

Record
EUVD-2016-1503
Updated
2026-11-03
GitHub AdvisoriesGHSA-mcg2-4f7h-vc52 6.5

A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the...

A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.

Record
GHSA-mcg2-4f7h-vc52
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV 6.5

A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.

Record
CVE-2016-10318
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2016-10318 6.5

A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.

Record
DEBIAN-CVE-2016-10318
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2016-10318 6.5

A missing authorization check in the fscrypt_process_policy function in fs/crypto/policy.c in the ext4 and f2fs filesystem encryption support in the Linux kernel before 4.7.4 allows a user to assign an encryption policy to a directory owned by a different user, potentially creating a denial of service.

Record
UBUNTU-CVE-2016-10318
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
linux
Debian:12
 before 4.7.4-1
4.7.4-1
linux
Debian:13
 before 4.7.4-1
4.7.4-1
linux
Debian:14
 before 4.7.4-1
4.7.4-1
linux-lts-xenial
Ubuntu:14.04:LTS
 before 4.4.0-47.68~14.04.1, plus listed versions
4.4.0-13.29~14.04.14.4.0-14.30~14.04.24.4.0-15.31~14.04.14.4.0-18.34~14.04.14.4.0-21.37~14.04.1
Show 10 moreShow less
4.4.0-22.39~14.04.14.4.0-22.40~14.04.14.4.0-24.43~14.04.14.4.0-28.47~14.04.14.4.0-31.50~14.04.14.4.0-34.53~14.04.14.4.0-36.55~14.04.14.4.0-38.57~14.04.14.4.0-42.62~14.04.14.4.0-45.66~14.04.1
4.4.0-47.68~14.04.1
linux
Ubuntu:16.04:LTS
 before 4.4.0-47.68, plus listed versions
4.2.0-16.194.2.0-17.214.2.0-19.234.3.0-1.104.3.0-2.11
Show 30 moreShow less
4.3.0-5.164.3.0-6.174.3.0-7.184.4.0-2.164.4.0-4.194.4.0-6.214.4.0-7.224.4.0-8.234.4.0-9.244.4.0-10.254.4.0-11.264.4.0-12.284.4.0-13.294.4.0-14.304.4.0-15.314.4.0-16.324.4.0-17.334.4.0-18.344.4.0-21.374.4.0-22.394.4.0-22.404.4.0-24.434.4.0-28.474.4.0-31.504.4.0-34.534.4.0-36.554.4.0-38.574.4.0-42.624.4.0-43.634.4.0-45.66
4.4.0-47.68
linux-raspi2
Ubuntu:16.04:LTS
 before 4.4.0-1038.45, plus listed versions
4.2.0-1013.194.2.0-1014.214.3.0-1006.64.4.0-1003.44.4.0-1004.5
Show 12 moreShow less
4.4.0-1009.104.4.0-1010.124.4.0-1010.134.4.0-1012.164.4.0-1016.224.4.0-1017.234.4.0-1019.254.4.0-1021.274.4.0-1023.294.4.0-1027.334.4.0-1029.364.4.0-1034.41
4.4.0-1038.45
linux-snapdragon
Ubuntu:16.04:LTS
 before 4.4.0-1035.39, plus listed versions
4.4.0-1012.124.4.0-1013.144.4.0-1013.154.4.0-1015.184.4.0-1019.22
Show 6 moreShow less
4.4.0-1020.234.4.0-1022.254.4.0-1024.274.4.0-1026.294.4.0-1030.334.4.0-1032.36
4.4.0-1035.39

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-10318 is a medium vulnerability (CVSS 6.5) in Linux Kernel, published April 4, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.16%, the 82nd percentile. Fixed in linux 4.7.4-1.

References

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