CVE-2016-7042

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.

• CVE ID
• CVE-2016-7042

• Assigner
• cve@mitre.org

• Vulnerability Status
• Modified

• Published Version
• 2016-10-16T21:59:10

• Last Modified Date
• 2018-01-05T02:31:10

• Version
• 2.0

• Vector String
• AV:L/AC:L/Au:N/C:N/I:N/A:C

• Access Vector
• LOCAL

• Access Compatibility
• LOW

• Authentication
• NONE

• Confidentiality Impact
• NONE

• Integrity Impact
• NONE

• Availability Impact
• COMPLETE

• Base Score
• 4.9

• Severity
• MEDIUM

• Exploitability Score
• 3.9

• Impact Score
• 6.9

• Version
• 3.0

• Vector String
• CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

• Attack Vector
• LOCAL

• Attack Compatibility
• LOW

• Privileges Required
• NONE

• User Interaction
• NONE

• Scope
• UNCHANGED

• Confidentiality Impact
• NONE

• Availability Impact
• HIGH

• Base Score
• 6.2

• Base Severity
• MEDIUM

• Exploitability Score
• 2.5

• Impact Score
• 3.6