Explain 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.
Affected Products: n/a
References: [{'name': 'USN-2967-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2967-1'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://source.android.com/security/bulletin/2016-05-01.html'}, {'name': 'SUSE-SU-2016:1038', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html'}, {'name': 'SUSE-SU-2016:1033', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html'}, {'name': 'DSA-3503', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2016/dsa-3503'}, {'name': 'SUSE-SU-2016:1034', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html'}, {'name': 'USN-2967-2', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2967-2'}, {'name': 'RHSA-2016:0494', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://rhn.redhat.com/errata/RHSA-2016-0494.html'}, {'name': 'USN-2968-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2968-1'}, {'name': 'SUSE-SU-2016:1035', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html'}, {'name': 'SUSE-SU-2016:1031', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html'}, {'name': 'SUSE-SU-2016:1037', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html'}, {'name': 'SUSE-SU-2016:1045', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html'}, {'name': 'USN-2968-2', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2968-2'}, {'name': 'SUSE-SU-2016:1032', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html'}, {'name': 'SUSE-SU-2016:1039', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html'}, {'name': 'RHSA-2016:0617', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://rhn.redhat.com/errata/RHSA-2016-0617.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://security-tracker.debian.org/tracker/CVE-2016-0774'}, {'name': 'SUSE-SU-2016:1041', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html'}, {'name': 'SUSE-SU-2016:1046', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html'}, {'name': '84126', 'tags': ['vdb-entry', 'x_refsource_BID'], 'url': 'http://www.securityfocus.com/bid/84126'}, {'name': 'SUSE-SU-2016:1040', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1303961'}]
CVE State: PUBLISHED