CVE-2016-0778

Advisory lineage Upstream: 0 Downstream: 12
Modified
Published: 14 Jan 2016, 00:00
Last modified:29 May 2026, 20:28

Vulnerability Summary

Overall Risk (default)
medium
43/100
CVSS Score
8.1 HIGH
v3.1 (nvd)
EPSS Score
0.79% LOW
1% probability -0.81%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

14 Jan 2016, 00:00
Published
Vulnerability first disclosed
29 May 2026, 20:28
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•HIGH•Score: 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v3.0•HIGH•Score: 8.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 4.6AV:N/AC:H/Au:S/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.79%• Percentile: 74%

Techniques & Countermeasures

  • CWE-119•Improper Restriction of Operations within the Bounds of a Memory Buffer

    The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Affected Systems

  • apple•mac_os_x

    ≥ 10.9.0, ≤ 10.9.5 | ≥ 10.10.0, ≤ 10.10.5 | ≥ 10.11.0, ≤ 10.11.3

  • hp•virtual_customer_access_system

    ≤ 15.07

  • openbsd•openssh

    5.4 | 5.4:p1 | 5.5 | 5.5:p1 | 5.6 | 5.6:p1 | 5.7 | 5.7:p1 | 5.8 | 5.8:p1 | 5.9 | 5.9:p1 | 6.0 | 6.0:p1 | 6.1 | 6.1:p1 | 6.2 | 6.2:p1 | 6.2:p2 | 6.3 | 6.3:p1 | 6.4 | 6.4:p1 | 6.5 | 6.5:p1 | 6.6 | 6.6:p1 | 6.7 | 6.7:p1 | 6.8 | 6.8:p1 | 6.9 | 6.9:p1 | 7.0 | 7.0:p1 | 7.1 | 7.1:p1

  • oracle•linux

    7

  • Unknown•Solaris

    11.3

  • sophos•unified_threat_management_software

    9.353

References (31)