PT-2016-6212 · Linux+5 · Linux Kernel+5

Adam Mariš · Published 2016-06-02 · Updated 2024-06-15 · CVE-2016-4998

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.6

Description The issue allows local users to cause a denial of service or possibly obtain sensitive information from kernel heap memory by providing a crafted offset value. This is achieved by leveraging in-container root access, which leads to crossing a ruleset blob boundary in the netfilter subsystem.

Recommendations For Linux kernel versions prior to 4.6, update to version 4.6 or later to resolve the issue. As a temporary workaround, consider restricting in-container root access to minimize the risk of exploitation.

Exploit

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2016-1572

ALT-PU-2017-1330

CESA-2016_1847

CESA-2017_0036

CVE-2016-4998

DSA-3607-1

MGASA-2016-0271

MGASA-2016-0283

MGASA-2016-0284

OPENSUSE-SU-2016_2184-1

OPENSUSE-SU-2016_2290-1

OPENSUSE-SU-2017_1140-1

OPENSUSE-SU-2024:10128-1

RHSA-2016:1847

RHSA-2016:1875

RHSA-2016:1883

RHSA-2016_1847

RHSA-2016_1875

RHSA-2017:0036

RHSA-2017_0036

SUSE-SU-2016_1709-1

SUSE-SU-2016_1710-1

USN-3016-1

USN-3016-2

USN-3016-3

USN-3016-4

USN-3017-1

USN-3017-2

USN-3017-3

USN-3018-1

USN-3018-2

USN-3019-1

USN-3020-1

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

Ubuntu

References · 164

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/netfilter_priv_esc_ipv4.rb · Exploit
• https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4569 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3018-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3016-4 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2016-4998 · Security Note
• https://linux.oracle.com/errata/ELSA-2017-0036.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4578 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2016-4998 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4580 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4913 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2016-3619.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4482 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3017-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-4998 · Vendor Advisory