PT-2016-6019 · Linux+2 · Linux Kernel+2

Jann Horn · Published 2016-05-23 · Updated 2024-06-15 · CVE-2016-4558

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.5.5

Description The issue is related to the BPF subsystem in the Linux kernel, which mishandles reference counts. This can be exploited by local users to cause a denial of service (use-after-free) or possibly have other unspecified impacts via a crafted application. The issue is particularly relevant on systems with more than 32 Gb of memory, where it is related to the program reference count, or on 1 Tb systems, where it is related to the map reference count.

Recommendations For Linux kernel versions prior to 4.5.5, update to version 4.5.5 or later to resolve the issue.

Exploit

Fix

Related Identifiers

ALT-PU-2016-1534

ALT-PU-2016-1538

CVE-2016-4558

OPENSUSE-SU-2024:10128-1

USN-3005-1

USN-3006-1

USN-3007-1

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 116

• 🔥 https://exploit-db.com/exploits/39773 · Exploit
• https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4565 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10128-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-4558 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8839 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3005-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4558 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4581 · Vendor Advisory
• http://ubuntu.com/usn/USN-3005-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2187 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-4558 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3006-1 · Vendor Advisory
• http://ubuntu.com/usn/USN-3007-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3007-1 · Vendor Advisory