CVE-2016-0774 Details

CVE-2016-0774

Published: 2016-04-27
Last Modified: 2016-12-03
CVE Author: NIST National Vulnerability Database
CVE Assigner: secalert@redhat.com
Summary

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.

Analysis
Common Vulnerability Score System v2.0
Severity Medium
Base Score 5.6/10
Exploit Score 3.9/10
Access Vector Local
Access Complexity Low
Authentication None
Impact Score 7.8/10
Confidentiality Impact Partial
Availability Impact Complete
Integrity Impact None
Vector String AV:L/AC:L/Au:N/C:P/I:N/A:C
Common Vulnerability Score System v3.1
Severity Medium
Base Score 6.8/10
Exploit Score 2.5/10
Access Vector Local
Access Complexity Low
Privileges Required None
Impact Score 4.2/10
Confidentiality Impact Low
Availability Impact High
Integrity Impact None
Scope Unchanged
User Interaction None
Vector String CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Products Reported
CPE Vulnerable Start Excluding
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Yes - -
cpe:2.3:o:google:android:*:*:*:*:*:*:*:* Yes - -
References

https://bugzilla.redhat.com/show_bug.cgi?id=1303961
https://security-tracker.debian.org/tracker/CVE-2016-0774
http://source.android.com/security/bulletin/2016-05-01.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.securityfocus.com/bid/84126
http://rhn.redhat.com/errata/RHSA-2016-0494.html
http://www.ubuntu.com/usn/USN-2968-1
http://www.debian.org/security/2016/dsa-3503
http://www.ubuntu.com/usn/USN-2967-1
http://www.ubuntu.com/usn/USN-2967-2
http://rhn.redhat.com/errata/RHSA-2016-0617.html
http://www.ubuntu.com/usn/USN-2968-2
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html

CVE ID
CVE-2016-0774
Published
2016-04-27
Modified
2016-12-03
CVSSv2.0
Medium
CVSSv3.1
Medium
PCI Compliance
Fail
US-CERT Alert
No
CWE
CWE-20

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