CVE-2016-7042

MEDIUM

Linux Kernel < 4.8.2 - Denial of Service via /proc/keys Buffer Overflow

Title source: llm
STIX 2.1

Description

The proc_keys_show function in security/keys/proc.c in the Linux kernel through 4.8.2, when the GNU Compiler Collection (gcc) stack protector is enabled, uses an incorrect buffer size for certain timeout data, which allows local users to cause a denial of service (stack memory corruption and panic) by reading the /proc/keys file.

References (8)

Core 8
Core References
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1373966
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/10/13/5
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2669
Vendor Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2017-0817.html
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2077
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:1842
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/93544

Scores

CVSS v3 6.2
EPSS 0.0040
EPSS Percentile 31.5%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-119
Status published
Products (1)
linux/linux_kernel < 4.8.2
Published Oct 16, 2016
Tracked Since Feb 18, 2026