PT-2018-17825 · Linux+5 · Linux Kernel+5

Li Jinyue · Published 2018-01-24 · Updated 2019-03-06 · CVE-2018-6927

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 4.14.15

Description The issue is related to the futex requeue function in kernel/futex.c, which might allow attackers to cause a denial of service or have other unspecified impacts by triggering a negative wake or requeue value. This could potentially lead to an integer overflow.

Recommendations For Linux kernel versions prior to 4.14.15, update to version 4.14.15 or later to resolve the issue. As a temporary workaround, consider restricting access to the futex requeue function to minimize the risk of exploitation.

Exploit

Fix

DoS

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

ALT-PU-2018-1077

ALT-PU-2018-1991

CESA-2018_1062

CVE-2018-6927

DLA-1369-1

DSA-4187-1

RHSA-2018:0654

RHSA-2018:0676

RHSA-2018:1062

RHSA-2018_0676

RHSA-2018_1062

SUSE-SU-2018:0834-1

SUSE-SU-2018:0848-1

SUSE-SU-2018:1080-1

SUSE-SU-2018:1172-1

SUSE-SU-2018:1309-1

USN-3619-1

USN-3619-2

USN-3697-1

USN-3697-2

USN-3698-1

USN-3698-2

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

Ubuntu

References · 212

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/solaris/local/rsh_stack_clash_priv_esc.rb · Exploit
• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/bpf_sign_extension_priv_esc.rb · Exploit
• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/rds_atomic_free_op_null_pointer_deref_priv_esc.rb · Exploit
• 🔥 https://github.com/qazbnm456/awesome-cve-poc/blob/master/CVE-2017-16995.md · Exploit
• 🔥 https://github.com/qazbnm456/awesome-cve-poc/blob/master/Stack-Clash.md · Exploit
• 🔥 https://github.com/qazbnm456/awesome-cve-poc/blob/master/CVE-2017-5754.md · Exploit
• 🔥 https://github.com/qazbnm456/awesome-cve-poc/blob/master/CVE-2017-5715.md · Exploit
• 🔥 https://github.com/qazbnm456/awesome-cve-poc/blob/master/CVE-2017-5753.md · Exploit
• 🔥 https://github.com/opsxcq/exploit-cve-2017-5715 · Exploit
• 🔥 https://github.com/Al1ex/CVE-2017-16995 · Exploit
• 🔥 https://github.com/GeneBlue/CVE-2017-10661_POC · Exploit
• 🔥 https://github.com/es0j/CVE-2023-0045 · Exploit
• 🔥 https://github.com/EdwardOwusuAdjei/Spectre-PoC · Exploit
• 🔥 https://github.com/ASkyeye/CVE-2023-0045 · Exploit
• https://github.com/torvalds/linux/commit/fbe0e839d1e22d88810f3ee3e2f1479be4c0aa4a · Patch