Explain CVE-2016-0778
The (1) roaming_read and (2) roaming_write functions in roaming_common.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2, when certain proxy and forward options are enabled, do not properly maintain connection file descriptors, which allows remote servers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact by requesting many forwardings.
Affected Products: n/a
References: [{'url': 'https://blogs.sophos.com/2016/02/17/utm-up2date-9-354-released/'}, {'name': 'SUSE-SU-2016:0117', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00006.html'}, {'url': 'https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/'}, {'name': 'APPLE-SA-2016-03-21-5', 'tags': ['vendor-advisory'], 'url': 'http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.html'}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05247375'}, {'name': '20160114 Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778', 'tags': ['mailing-list'], 'url': 'http://www.securityfocus.com/archive/1/537295/100/0/threaded'}, {'url': 'https://support.apple.com/HT206167'}, {'name': 'FEDORA-2016-4556904561', 'tags': ['vendor-advisory'], 'url': 'http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176349.html'}, {'url': 'http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10734'}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05385680'}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html'}, {'url': 'http://www.openssh.com/txt/release-7.1p2'}, {'name': 'openSUSE-SU-2016:0128', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00014.html'}, {'name': '80698', 'tags': ['vdb-entry'], 'url': 'http://www.securityfocus.com/bid/80698'}, {'name': 'FEDORA-2016-2e89eba0c1', 'tags': ['vendor-advisory'], 'url': 'http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176516.html'}, {'url': 'https://bto.bluecoat.com/security-advisory/sa109'}, {'name': '1034671', 'tags': ['vdb-entry'], 'url': 'http://www.securitytracker.com/id/1034671'}, {'name': 'openSUSE-SU-2016:0127', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00013.html'}, {'name': 'GLSA-201601-01', 'tags': ['vendor-advisory'], 'url': 'https://security.gentoo.org/glsa/201601-01'}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722'}, {'name': '[oss-security] 20160114 Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778', 'tags': ['mailing-list'], 'url': 'http://www.openwall.com/lists/oss-security/2016/01/14/7'}, {'name': '20160115 Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778', 'tags': ['mailing-list'], 'url': 'http://seclists.org/fulldisclosure/2016/Jan/44'}, {'name': 'SUSE-SU-2016:0119', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00008.html'}, {'url': 'http://packetstormsecurity.com/files/135273/Qualys-Security-Advisory-OpenSSH-Overflow-Leak.html'}, {'name': 'SUSE-SU-2016:0118', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00007.html'}, {'name': 'SUSE-SU-2016:0120', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00009.html'}, {'name': 'USN-2869-1', 'tags': ['vendor-advisory'], 'url': 'http://www.ubuntu.com/usn/USN-2869-1'}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05356388'}, {'url': 'http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html'}, {'name': 'DSA-3446', 'tags': ['vendor-advisory'], 'url': 'http://www.debian.org/security/2016/dsa-3446'}, {'url': 'https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf'}]
CVE State: PUBLISHED