CVE-2016-4998

Advisory lineage Upstream: 0 Downstream: 19
Modified
Published: 03 Jul 2016, 21:00
Last modified:06 Aug 2024, 00:46

Vulnerability Summary

Overall Risk (default)
medium
39/100
CVSS Score
7.1 HIGH
v3.0 (nvd)
EPSS Score
1.53% LOW
2% probability +0.31%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

03 Jul 2016, 21:00
Published
Vulnerability first disclosed
06 Aug 2024, 00:46
Last Modified
Vulnerability information updated

Description

The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel before 4.6 allows local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary.

CVSS Metrics

  • v3.0•HIGH•Score: 7.1CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  • v2.0•MEDIUM•Score: 5.6AV:L/AC:L/Au:N/C:P/I:N/A:C

EPSS Trends

Current EPSS score: 1.53%• Percentile: 82%

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

    12.04 | 14.04 | 15.10 | 16.04

  • linux•linux_kernel

    ≤ 4.5.5

  • oracle•linux

    7

References (27)