What is CVE-2017-2636?

CVE-2017-2636 is a high-severity vulnerability in Linux Kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2017-03-07.

How severe is CVE-2017-2636?

High severity. CVSS v3 base score is 7.0 out of 10.

Is CVE-2017-2636 known to be exploited?

27 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Double Free in Linux Kernel

CVE-2017-2636

Race condition in drivers/tty/n_hdlc.c in the Linux kernel through 4.10.1 allows local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline.

Vulnerability class: Race Condition

EPSS: 0.010 (59.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux Linux_kernel
Debian Debian_linux — versions 8.0
N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
secalert@redhat.com (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)
secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory, Mitigation, Issue Tracking)
secalert@redhat.com (Third Party Advisory, x_refsource_MISC)
secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2017-2636?: CVE-2017-2636 is a high-severity vulnerability in Linux Kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2017-03-07.
How severe is CVE-2017-2636?: High severity. CVSS v3 base score is 7.0 out of 10.
Is CVE-2017-2636 known to be exploited?: 27 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.