Vulnerability Details : CVE-2016-4998

Public exploit exists!
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.
Published 2016-07-03 21:59:17
Updated 2023-02-12 23:22:41
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: OverflowDenial of service

Products affected by CVE-2016-4998

Exploit prediction scoring system (EPSS) score for CVE-2016-4998

EPSS FAQ
0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2016-4998

  • Linux Kernel 4.6.3 Netfilter Privilege Escalation
    Disclosure Date: 2016-06-03
    First seen: 2020-04-26
    exploit/linux/local/netfilter_priv_esc_ipv4
    This module attempts to exploit a netfilter bug on Linux Kernels before 4.6.3, and currently only works against Ubuntu 16.04 (not 16.04.1) with kernel 4.4.0-21-generic. Several conditions have to be met for successful exploitation: Ubuntu: 1. ip_ta

CVSS scores for CVE-2016-4998

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.6
 MEDIUM AV:L/AC:L/Au:N/C:P/I:N/A:C
3.9
7.8
 NIST
7.1
 HIGH CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
1.8
5.2
 NIST

CWE ids for CVE-2016-4998

  • 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.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-4998

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