CVE-2016-0777

Publication date 14 January 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The resend_bytes function in roaming_common.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2 allows remote servers to obtain sensitive information from process memory by requesting transmission of an entire buffer, as demonstrated by reading a private key.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
openssh	15.10 wily	Fixed 1:6.9p1-2ubuntu0.1
	15.04 vivid	Fixed 1:6.7p1-5ubuntu1.4
	14.04 LTS trusty	Fixed 1:6.6p1-2ubuntu2.4
	12.04 LTS precise	Fixed 1:5.9p1-5ubuntu1.8

Severity score breakdown

CVSS version: CVSS v3.0

Base score 6.5 · Medium

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	None
Availability impact	None

Scores

Parameter	Value
Base score	6.5 · Medium
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-2869-1
OpenSSH vulnerabilities
14 January 2016