CVE-2016-0774

The (1) pipe_read and (2) pipe_write implementations in fs/pipe.c in a certain Linux kernel backport in the linux package before 3.2.73-2+deb7u3 on Debian wheezy and the kernel package before 3.10.0-229.26.2 on Red Hat Enterprise Linux (RHEL) 7.1 do not properly consider the side effects of failed __copy_to_user_inatomic and __copy_from_user_inatomic calls, which allows local users to cause a denial of service (system crash) or possibly gain privileges via a crafted application, aka an "I/O vector array overrun." NOTE: this vulnerability exists because of an incorrect fix for CVE-2015-1805.

• CVE ID
• CVE-2016-0774

• Assigner
• secalert@redhat.com

• Vulnerability Status
• Modified

• Published Version
• 2016-04-27T17:59:06

• Last Modified Date
• 2016-12-03T03:18:02

• Version
• 2.0

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

• Access Vector
• LOCAL

• Access Compatibility
• LOW

• Authentication
• NONE

• Confidentiality Impact
• PARTIAL

• Integrity Impact
• NONE

• Availability Impact
• COMPLETE

• Base Score
• 5.6

• Severity
• MEDIUM

• Exploitability Score
• 3.9

• Impact Score
• 7.8

• Version
• 3.0

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

• Attack Vector
• LOCAL

• Attack Compatibility
• LOW

• Privileges Required
• NONE

• User Interaction
• NONE

• Scope
• UNCHANGED

• Confidentiality Impact
• LOW

• Availability Impact
• HIGH

• Base Score
• 6.8

• Base Severity
• MEDIUM

• Exploitability Score
• 2.5

• Impact Score
• 4.2