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CVE-2016-0728

HIGHCVSS 7.8/10EPSS 3.65%

Last modified

CVE-2016-0728 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. The join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1 mishandles object references in a certain error case, which allows local users to gain privileges or cause a denial of service (integer overflow and use-after-free) via crafted keyctl commands.. EPSS estimates a 3.65% chance of exploitation in the next 30 days.

Description

The join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1 mishandles object references in a certain error case, which allows local users to gain privileges or cause a denial of service (integer overflow and use-after-free) via crafted keyctl commands.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
3.65%

88.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
GoogleAndroid4.0
GoogleAndroid4.0.1
GoogleAndroid4.0.2
GoogleAndroid4.0.3
GoogleAndroid4.0.4
GoogleAndroid4.1
GoogleAndroid4.1.2
GoogleAndroid4.2
GoogleAndroid4.2.1
GoogleAndroid4.2.2
GoogleAndroid4.3
GoogleAndroid4.3.1
GoogleAndroid4.4
GoogleAndroid4.4.1
GoogleAndroid4.4.2
GoogleAndroid4.4.3
GoogleAndroid5.0
GoogleAndroid5.0.1
GoogleAndroid5.0.2
GoogleAndroid5.1
GoogleAndroid5.1.0
GoogleAndroid5.1.1
GoogleAndroid6.0
GoogleAndroid6.0.1
HpServer Migration Pack<= 7.5
LinuxLinux Kernel>= 3.8, < 3.10.95
LinuxLinux Kernel>= 3.11, < 3.12.53
LinuxLinux Kernel>= 3.13, < 3.14.59
LinuxLinux Kernel>= 3.15, < 3.16.35
LinuxLinux Kernel>= 3.17, < 3.18.26
LinuxLinux Kernel>= 3.19, < 4.1.16
LinuxLinux Kernel>= 4.2, < 4.3.4
LinuxLinux Kernel>= 4.4, < 4.4.1
DebianDebian Linux8.0
CanonicalUbuntu Linux12.04
CanonicalUbuntu Linux14.04
CanonicalUbuntu Linux15.04
CanonicalUbuntu Linux15.10

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-0728?
The join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1 mishandles object references in a certain error case, which allows local users to gain privileges or cause a denial of service (integer overflow and use-after-free) via crafted keyctl commands.
How severe is CVE-2016-0728?
CVE-2016-0728 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 3.65% probability of exploitation in the next 30 days.
How do I fix CVE-2016-0728?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-0728?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST