PT-2017-2223 · Linux+5 · Linux Kernel+5

Andrey Konovalov · Published 2017-05-19 · Updated 2023-02-24 · CVE-2017-9075

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 4.11.1

Description The issue is related to the sctp v6 create accept sk function in net/sctp/ipv6.c, which mishandles inheritance. This allows local users to cause a denial of service or possibly have other unspecified impacts via crafted system calls.

Recommendations For Linux kernel versions prior to 4.11.1, update to version 4.11.1 or later to resolve the issue. As a temporary workaround, consider restricting access to the sctp v6 create accept sk function to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-19

Related Identifiers

ALT-PU-2017-1699

ALT-PU-2017-1808

ALT-PU-2017-1854

BDU:2017-01416

CESA-2017_1842

CESA-2018_1854

CVE-2017-9075

DLA-993-1

DSA-3886-1

MGASA-2017-0186

MGASA-2017-0187

MGASA-2017-0188

OPENSUSE-SU-2017_1513-1

RHSA-2017:1842

RHSA-2017:2077

RHSA-2017:2669

RHSA-2017_1842

RHSA-2017_2077

RHSA-2018:1854

RHSA-2018_1854

SUSE-SU-2017:1853-1

SUSE-SU-2017:1990-1

SUSE-SU-2017:2342-1

SUSE-SU-2017:2389-1

SUSE-SU-2017:2525-1

SUSE-SU-2017:2908-1

SUSE-SU-2017:2920-1

USN-3342-1

USN-3342-2

USN-3343-1

USN-3343-2

USN-3344-1

USN-3344-2

USN-3345-1

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

Ubuntu

References · 684

• https://github.com/torvalds/linux/commit/fdcee2cbb8438702ea1b328fb6e0ac5e9a40c7f8 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdcee2cbb8438702ea1b328fb6e0ac5e9a40c7f8 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-0605 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2017-3637.html · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2017:2077 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9075 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9077 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2018-1854.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9076 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2017-0186.html · Security Note
• https://ubuntu.com/security/CVE-2017-1000363 · Vendor Advisory
• https://patchwork.ozlabs.org/patch/763569 · Patch
• https://ubuntu.com/security/CVE-2014-9940 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3345-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9074 · Vendor Advisory