CVE-2016-0778

Published: 14 January 2016

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.

Priority

Cvss 3 Severity Score

8.1

Score breakdown

Status

Package	Release	Status
openssh Launchpad, Ubuntu, Debian	precise	Released (1:5.9p1-5ubuntu1.8)
	trusty	Released (1:6.6p1-2ubuntu2.4)
	upstream	Released (7.1p2)
	vivid	Released (1:6.7p1-5ubuntu1.4)
	wily	Released (1:6.9p1-2ubuntu0.1)

Severity score breakdown

Parameter	Value
Base score	8.1
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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