CVE-2016-0778

NameCVE-2016-0778
DescriptionThe (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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-387-1, DSA-3446-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openssh (PTS)wheezy1:6.0p1-4+deb7u4fixed
wheezy (security)1:6.0p1-4+deb7u6fixed
jessie (security), jessie1:6.7p1-5+deb8u3fixed
stretch1:7.4p1-10+deb9u1fixed
buster, sid1:7.6p1-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
opensshsource(unstable)1:7.1p2-1medium
opensshsourcejessie1:6.7p1-5+deb8u1mediumDSA-3446-1
opensshsourcesqueeze1:5.5p1-6+squeeze8mediumDLA-387-1
opensshsourcewheezy1:6.0p1-4+deb7u3mediumDSA-3446-1

Notes

https://www.qualys.com/2016/01/14/cve-2016-0777-cve-2016-0778/openssh-cve-2016-0777-cve-2016-0778.txt

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