PT-2016-7192 · Gnu+6 · Gnu Compiler Collection+6

Adam Mariš · Published 2016-10-16 · Updated 2024-06-15 · CVE-2016-7042

Positive Technologies (AI Summary)

CVSS v3.1

6.2

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.8.3

Description The issue allows local users to cause a denial of service, resulting in stack memory corruption and panic, by reading the /proc/keys file. This occurs due to the proc keys show function using an incorrect buffer size for certain timeout data when the GNU Compiler Collection (gcc) stack protector is enabled.

Recommendations For Linux kernel versions prior to 4.8.3, update to version 4.8.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the /proc/keys file to minimize the risk of exploitation.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2016-2218

ALT-PU-2017-1330

CESA-2017_0817

CESA-2017_1842

CVE-2016-7042

DLA-670-1

DSA-3696-1

MGASA-2016-0401

MGASA-2016-0411

MGASA-2016-0412

OPENSUSE-SU-2016_3021-1

OPENSUSE-SU-2016_3050-1

OPENSUSE-SU-2016_3058-1

OPENSUSE-SU-2016_3061-1

OPENSUSE-SU-2024:10128-1

RHSA-2017:0817

RHSA-2017:1842

RHSA-2017:2077

RHSA-2017:2669

RHSA-2017_0817

RHSA-2017_1842

RHSA-2017_2077

SUSE-SU-2016:2912-1

SUSE-SU-2016:2976-1

SUSE-SU-2016:3304-1

SUSE-SU-2017:0181-1

SUSE-SU-2017:0333-1

SUSE-SU-2017:0471-1

SUSE-SU-2017:0494-1

SUSE-SU-2017:1102-1

USN-3126-1

USN-3126-2

USN-3127-1

USN-3127-2

USN-3128-1

USN-3128-2

USN-3128-3

USN-3129-1

USN-3129-2

USN-3161-3

Affected Products

Alt Linux

Centos

Gnu Compiler Collection

Linux Kernel

Red Hat

Suse

Ubuntu

References · 673

• https://osv.dev/vulnerability/SUSE-SU-2016:2912-1 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3696-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3129-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3127-2 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2016-7042 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2016-0401 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:2976-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3127-1 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2017:1842 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8964 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4568 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2016-0411.html · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2016:3304-1 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2016-0412 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-8633 · Vendor Advisory