CVE-2017-2636

Advisory lineage Upstream: 0 Downstream: 47
Modified
Published: 07 Mar 2017, 22:00
Last modified:05 Aug 2024, 14:02

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7 HIGH
v3.1 (nvd)
EPSS Score
0.52% LOW
1% probability -0.03%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

07 Mar 2017, 22:00
Published
Vulnerability first disclosed
05 Aug 2024, 14:02
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.9AV:L/AC:M/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.52%• Percentile: 67%

Techniques & Countermeasures

  • CWE-362•Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

    The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

  • CWE-415•Double Free

    The product calls free() twice on the same memory address.

Affected Systems

  • debian•debian_linux

    8.0

  • linux•linux_kernel

    ≥ 2.6.31, < 3.2.87 | ≥ 3.3, < 3.10.106 | ≥ 3.11, < 3.12.72 | ≥ 3.13, < 3.16.42 | ≥ 3.17, < 3.18.49 | ≥ 3.19, < 4.1.49 | ≥ 4.2, < 4.4.54 | ≥ 4.5, < 4.9.15 | ≥ 4.10, < 4.10.3

References (16)