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CVE-2015-4170

UnknownEPSS 0.33%

Last modified

CVE-2015-4170 is a vulnerability of currently unknown severity. Race condition in the ldsem_cmpxchg function in drivers/tty/tty_ldsem.c in the Linux kernel before 3.13-rc4-next-20131218 allows local users to cause a denial of service (ldsem_down_read and ldsem_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

Race condition in the ldsem_cmpxchg function in drivers/tty/tty_ldsem.c in the Linux kernel before 3.13-rc4-next-20131218 allows local users to cause a denial of service (ldsem_down_read and ldsem_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread.

Metrics

EPSS Probability
0.33%

24.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel<= 3.13.3
RedhatEnterprise Linux Compute Node Eus7.1
RedhatEnterprise Linux For Ibm Z Systems Eus7.1_s390x
RedhatEnterprise Linux For Power Big Endian Eus7.1_ppc64
RedhatEnterprise Linux For Power Little Endian Eus7.1_ppc64le
RedhatEnterprise Linux Server Eus7.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-4170?
Race condition in the ldsem_cmpxchg function in drivers/tty/tty_ldsem.c in the Linux kernel before 3.13-rc4-next-20131218 allows local users to cause a denial of service (ldsem_down_read and ldsem_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread.
How severe is CVE-2015-4170?
Severity scoring for CVE-2015-4170 is pending analysis. The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.
How do I fix CVE-2015-4170?
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-2015-4170?

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

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Source: NVD / NIST