CVE-2017-16995

Advisory lineage Upstream: 0 Downstream: 12
Modified
Published: 22 Dec 2017, 10:00
Last modified:05 Aug 2024, 20:43

Vulnerability Summary

Overall Risk (default)
high
58/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
84.05% CRITICAL
84% probability +0.38%
KEV
Not listed
Ransomware
No reports
Public exploits
4 found
Dark Web
Not detected

Timeline

22 Dec 2017, 10:00
Published
Vulnerability first disclosed
05 Aug 2024, 20:43
Last Modified
Vulnerability information updated

Description

The check_alu_op function in kernel/bpf/verifier.c in the Linux kernel through 4.4 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging incorrect sign extension.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 84.05%• Percentile: 99%

Techniques & Countermeasures

  • CWE-119•Improper Restriction of Operations within the Bounds of a Memory Buffer

    The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04

  • debian•debian_linux

    9.0

  • linux•linux_kernel

    ≥ 4.9, < 4.9.72 | ≥ 4.10, < 4.14.9

References (14)