PT-2017-3585 · Linux+2 · Linux Kernel+2

Published 2017-12-22 · Updated 2023-02-07 · CVE-2017-18075

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 4.14.13

Description: The issue is related to errors in resource management within the Parallel Crypto Engine (crypto/pcrypt.c) subsystem of the Linux operating system. It can be exploited by executing a specially crafted sequence of system calls, potentially allowing an attacker to cause a denial of service or have other unspecified impacts. A local user with access to the AF ALG-based AEAD interface and pcrypt can exploit this issue.

Recommendations: For Linux kernel versions prior to 4.14.13, update to version 4.14.13 or later to resolve the issue. As a temporary workaround, consider restricting access to the AF ALG-based AEAD interface and pcrypt to minimize the risk of exploitation.

Fix

DoS

Weakness Enumeration

CWE-763

CWE-399

Related Identifiers

ALT-PU-2018-1021

ALT-PU-2018-1022

BDU:2018-00517

CVE-2017-18075

RHSA-2018:2948

SUSE-SU-2018:0568-1

SUSE-SU-2018:0572-1

SUSE-SU-2018:0573-1

SUSE-SU-2018:0574-1

SUSE-SU-2018:0575-1

SUSE-SU-2018:0576-1

SUSE-SU-2018:0577-1

SUSE-SU-2018:0578-1

SUSE-SU-2018:0579-1

SUSE-SU-2018:0582-1

SUSE-SU-2018:0584-1

SUSE-SU-2018:0586-1

SUSE-SU-2018:0590-1

SUSE-SU-2018:0591-1

SUSE-SU-2018:0592-1

SUSE-SU-2018:0593-1

SUSE-SU-2018:0594-1

SUSE-SU-2018:0595-1

SUSE-SU-2018:0596-1

SUSE-SU-2018:0597-1

USN-3619-1

USN-3619-2

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 106

• https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68 · Patch
• https://ubuntu.com/security/CVE-2017-17450 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-18075 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-15129 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16536 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-8043 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2018:0591-1 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:2948 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-0861 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16537 · Vendor Advisory
• https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13 · Vendor Advisory
• https://usn.ubuntu.com/3619-2 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:0595-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16912 · Vendor Advisory