PT-2017-14668 · Linux+2 · Linux Kernel+2

Bleidl + 1 · Published 2017-12-22 · Updated 2025-09-29 · CVE-2017-16995

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/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

Description The issue is related to the check alu op function in kernel/bpf/verifier.c, which allows local users to cause a denial of service or possibly have other unspecified impacts by leveraging incorrect sign extension.

Recommendations For versions prior to 4.5, update to version 4.5 or later to resolve the issue.

Exploit

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALSA-2025_16880

ALT-PU-2017-2830

ALT-PU-2017-2831

ALT-PU-2017-2832

ALT-PU-2018-1016

ALT-PU-2018-1253

CVE-2017-16995

DSA-4073-1

MGASA-2018-0062

MGASA-2018-0063

MGASA-2018-0064

OPENSUSE-SU-2024:10728-1

OPENSUSE-SU-2024:13704-1

USN-3523-1

USN-3523-2

USN-3523-3

USN-3619-1

USN-3619-2

USN-3633-1

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 298

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/bpf_sign_extension_priv_esc.rb · Exploit
• 🔥 https://github.com/qazbnm456/awesome-cve-poc/blob/master/CVE-2017-16995.md · Exploit
• 🔥 https://github.com/Al1ex/CVE-2017-16995 · Exploit
• 🔥 https://exploit-db.com/exploits/45010 · Exploit
• 🔥 https://exploit-db.com/exploits/45058 · Exploit
• 🔥 https://exploit-db.com/exploits/44298 · Exploit
• https://ubuntu.com/security/CVE-2017-16536 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-16995 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16537 · Vendor Advisory
• https://usn.ubuntu.com/3619-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-1000026 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-17448 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-16995 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3619-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-6927 · Vendor Advisory