PT-2017-15053 · Linux+3 · Linux Kernel+3

Alexei Starovoitov · Published 2017-12-23 · Updated 2024-06-15 · CVE-2017-17862

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.14.9

Description The issue is related to the Linux kernel's handling of unreachable code in the kernel/bpf/verifier.c component. This behavior is also considered an improper branch-pruning logic issue. It could be used by local users to cause a denial of service. The estimated number of potentially affected devices is not specified.

Recommendations For Linux kernel versions prior to 4.14.9, update to version 4.14.9 or later to resolve the issue. As a temporary workaround, consider restricting access to the kernel/bpf/verifier.c component to minimize the risk of exploitation.

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2018-1016

ALT-PU-2018-1991

CVE-2017-17862

DSA-4073-1

MGASA-2018-0062

MGASA-2018-0063

MGASA-2018-0064

OPENSUSE-SU-2018_0408-1

OPENSUSE-SU-2024:10728-1

OPENSUSE-SU-2024:13704-1

SUSE-SU-2018:0383-1

SUSE-SU-2018:0416-1

SUSE-SU-2018:0482-1

SUSE-SU-2018:0986-1

SUSE-SU-2021:3935-1

USN-3523-1

USN-3523-2

USN-3523-3

USN-3619-1

USN-3619-2

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 599

• https://usn.ubuntu.com/3619-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-1000026 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:0482-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-17862 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-6927 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-17863 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16528 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16995 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2018-0064.html · Security Note
• https://usn.ubuntu.com/3619-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-17558 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16645 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2018-0063.html · Security Note
• https://osv.dev/vulnerability/DSA-4073-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16911 · Vendor Advisory