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CVE-2015-8543

HIGHCVSS 7/10EPSS 1.23%

Last modified

CVE-2015-8543 is a high-severity vulnerability rated 7/10 on the CVSS scale. The networking implementation in the Linux kernel through 4.3.3, as used in Android and other products, does not validate protocol identifiers for certain protocol families, which allows local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application.. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

The networking implementation in the Linux kernel through 4.3.3, as used in Android and other products, does not validate protocol identifiers for certain protocol families, which allows local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application.

Metrics

CVSS 3.1
7/10

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

EPSS Probability
1.23%

65.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
LinuxLinux Kernel< 3.2.75
LinuxLinux Kernel>= 3.3, < 3.4.111
LinuxLinux Kernel>= 3.5, < 3.10.95
LinuxLinux Kernel>= 3.11, < 3.12.52
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

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-8543?
The networking implementation in the Linux kernel through 4.3.3, as used in Android and other products, does not validate protocol identifiers for certain protocol families, which allows local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application.
How severe is CVE-2015-8543?
CVE-2015-8543 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.
How do I fix CVE-2015-8543?
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.

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Source: NVD / NIST