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CVE-2016-7042

Date: October 16, 2016

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.

Language: C

Severity Score

Related Resources (13)

https://access.redhat.com/errata/RHSA-2017:1842
https://access.redhat.com/security/cve/CVE-2016-7042
http://www.openwall.com/lists/oss-security/2016/10/13/5
https://access.redhat.com/errata/RHSA-2017:2669
https://source.android.com/security/bulletin/2017-01-01.html
https://bugzilla.redhat.com/show_bug.cgi?id=1373966
http://www.securityfocus.com/bid/93544
https://people.canonical.com/~ubuntu-security/cve/CVE-2016-7042
https://nvd.nist.gov/vuln/detail/CVE-2016-7042
https://access.redhat.com/errata/RHSA-2017:2077
https://security-tracker.debian.org/tracker/CVE-2016-7042
http://rhn.redhat.com/errata/RHSA-2017-0817.html
https://www.mend.io/vulnerability-database/CVE-2016-7042

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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