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TI-2016-00695 Aliases CVE-2016-0777GHSA-9h73-2pqx-3jh8

The resend_bytes function in roaming_common.c in the client in OpenSSH 5.x, 6.x, and 7.x…

Priority MEDIUM 64CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-200.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.63468 99th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 58

CPEVersionsRoleVendor
cpe:2.3:a:sophos:unified_threat_management_software:9.318:*:*:*:*:*:*:*9.318VulnerableSophos
cpe:2.3:a:sophos:unified_threat_management_software:9.353:*:*:*:*:*:*:*9.353VulnerableSophos
cpe:2.3:h:sophos:unified_threat_management:110:*:*:*:*:*:*:*110Running onSophos
cpe:2.3:h:sophos:unified_threat_management:120:*:*:*:*:*:*:*120Running onSophos
cpe:2.3:h:sophos:unified_threat_management:220:*:*:*:*:*:*:*220Running onSophos
cpe:2.3:h:sophos:unified_threat_management:320:*:*:*:*:*:*:*320Running onSophos
cpe:2.3:h:sophos:unified_threat_management:425:*:*:*:*:*:*:*425Running onSophos
cpe:2.3:h:sophos:unified_threat_management:525:*:*:*:*:*:*:*525Running onSophos
cpe:2.3:h:sophos:unified_threat_management:625:*:*:*:*:*:*:*625Running onSophos
cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*7VulnerableOracle
  • cpe:2.3:a:sophos:unified_threat_management_software:9.318:*:*:*:*:*:*:* Versions 9.318 Vulnerable ·Sophos
  • cpe:2.3:a:sophos:unified_threat_management_software:9.353:*:*:*:*:*:*:* Versions 9.353 Vulnerable ·Sophos
  • cpe:2.3:h:sophos:unified_threat_management:110:*:*:*:*:*:*:* Versions 110 Running on ·Sophos
  • cpe:2.3:h:sophos:unified_threat_management:120:*:*:*:*:*:*:* Versions 120 Running on ·Sophos
  • cpe:2.3:h:sophos:unified_threat_management:220:*:*:*:*:*:*:* Versions 220 Running on ·Sophos
  • cpe:2.3:h:sophos:unified_threat_management:320:*:*:*:*:*:*:* Versions 320 Running on ·Sophos
  • cpe:2.3:h:sophos:unified_threat_management:425:*:*:*:*:*:*:* Versions 425 Running on ·Sophos
  • cpe:2.3:h:sophos:unified_threat_management:525:*:*:*:*:*:*:* Versions 525 Running on ·Sophos
  • cpe:2.3:h:sophos:unified_threat_management:625:*:*:*:*:*:*:* Versions 625 Running on ·Sophos
  • cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* Versions 7 Vulnerable ·Oracle
Show 48 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:*11.3VulnerableOracle
cpe:2.3:a:openbsd:openssh:5.0:*:*:*:*:*:*:*5.0VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.0:p1:*:*:*:*:*:*5.0 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.1:*:*:*:*:*:*:*5.1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.1:p1:*:*:*:*:*:*5.1 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.2:*:*:*:*:*:*:*5.2VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.2:p1:*:*:*:*:*:*5.2 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.3:*:*:*:*:*:*:*5.3VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.3:p1:*:*:*:*:*:*5.3 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.4:*:*:*:*:*:*:*5.4VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.4:p1:*:*:*:*:*:*5.4 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.5:*:*:*:*:*:*:*5.5VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.5:p1:*:*:*:*:*:*5.5 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.6:*:*:*:*:*:*:*5.6VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.6:p1:*:*:*:*:*:*5.6 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.7:*:*:*:*:*:*:*5.7VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.7:p1:*:*:*:*:*:*5.7 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.8:*:*:*:*:*:*:*5.8VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.8:p1:*:*:*:*:*:*5.8 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.9:*:*:*:*:*:*:*5.9VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:5.9:p1:*:*:*:*:*:*5.9 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.0:*:*:*:*:*:*:*6.0VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.0:p1:*:*:*:*:*:*6.0 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.1:*:*:*:*:*:*:*6.1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.1:p1:*:*:*:*:*:*6.1 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.2:*:*:*:*:*:*:*6.2VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.2:p1:*:*:*:*:*:*6.2 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.2:p2:*:*:*:*:*:*6.2 p2VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.3:*:*:*:*:*:*:*6.3VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.3:p1:*:*:*:*:*:*6.3 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.4:*:*:*:*:*:*:*6.4VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.4:p1:*:*:*:*:*:*6.4 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.5:*:*:*:*:*:*:*6.5VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.5:p1:*:*:*:*:*:*6.5 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.6:*:*:*:*:*:*:*6.6VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.6:p1:*:*:*:*:*:*6.6 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.7:*:*:*:*:*:*:*6.7VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.7:p1:*:*:*:*:*:*6.7 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.8:*:*:*:*:*:*:*6.8VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.8:p1:*:*:*:*:*:*6.8 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.9:*:*:*:*:*:*:*6.9VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.9:p1:*:*:*:*:*:*6.9 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:7.0:*:*:*:*:*:*:*7.0VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:7.0:p1:*:*:*:*:*:*7.0 p1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:7.1:*:*:*:*:*:*:*7.1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:7.1:p1:*:*:*:*:*:*7.1 p1VulnerableOpenBSD
cpe:2.3:a:hp:remote_device_access_virtual_customer_access_system:*:*:*:*:*:*:*:*up to 15.07VulnerableHewlett Packard Enterprise
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*up to 10.11.3VulnerableApple
  • cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:* Versions 11.3 Vulnerable ·Oracle
  • cpe:2.3:a:openbsd:openssh:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.0:p1:*:*:*:*:*:* Versions 5.0 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.1:*:*:*:*:*:*:* Versions 5.1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.1:p1:*:*:*:*:*:* Versions 5.1 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.2:*:*:*:*:*:*:* Versions 5.2 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.2:p1:*:*:*:*:*:* Versions 5.2 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.3:*:*:*:*:*:*:* Versions 5.3 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.3:p1:*:*:*:*:*:* Versions 5.3 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.4:*:*:*:*:*:*:* Versions 5.4 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.4:p1:*:*:*:*:*:* Versions 5.4 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.5:*:*:*:*:*:*:* Versions 5.5 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.5:p1:*:*:*:*:*:* Versions 5.5 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.6:*:*:*:*:*:*:* Versions 5.6 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.6:p1:*:*:*:*:*:* Versions 5.6 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.7:*:*:*:*:*:*:* Versions 5.7 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.7:p1:*:*:*:*:*:* Versions 5.7 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.8:*:*:*:*:*:*:* Versions 5.8 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.8:p1:*:*:*:*:*:* Versions 5.8 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.9:*:*:*:*:*:*:* Versions 5.9 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:5.9:p1:*:*:*:*:*:* Versions 5.9 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.0:p1:*:*:*:*:*:* Versions 6.0 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.1:*:*:*:*:*:*:* Versions 6.1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.1:p1:*:*:*:*:*:* Versions 6.1 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.2:*:*:*:*:*:*:* Versions 6.2 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.2:p1:*:*:*:*:*:* Versions 6.2 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.2:p2:*:*:*:*:*:* Versions 6.2 p2 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.3:*:*:*:*:*:*:* Versions 6.3 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.3:p1:*:*:*:*:*:* Versions 6.3 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.4:*:*:*:*:*:*:* Versions 6.4 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.4:p1:*:*:*:*:*:* Versions 6.4 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.5:*:*:*:*:*:*:* Versions 6.5 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.5:p1:*:*:*:*:*:* Versions 6.5 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.6:*:*:*:*:*:*:* Versions 6.6 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.6:p1:*:*:*:*:*:* Versions 6.6 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.7:*:*:*:*:*:*:* Versions 6.7 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.7:p1:*:*:*:*:*:* Versions 6.7 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.8:*:*:*:*:*:*:* Versions 6.8 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.8:p1:*:*:*:*:*:* Versions 6.8 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.9:*:*:*:*:*:*:* Versions 6.9 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.9:p1:*:*:*:*:*:* Versions 6.9 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:7.0:p1:*:*:*:*:*:* Versions 7.0 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:7.1:*:*:*:*:*:*:* Versions 7.1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:7.1:p1:*:*:*:*:*:* Versions 7.1 p1 Vulnerable ·OpenBSD
  • cpe:2.3:a:hp:remote_device_access_virtual_customer_access_system:*:*:*:*:*:*:*:* Versions up to 15.07 Vulnerable ·Hewlett Packard Enterprise
  • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions up to 10.11.3 Vulnerable ·Apple

Remediation

Red Hat 1 advisory

  • RHSA-2016:0043 Released 2016-01-14 · Red Hat rating Moderate
    openssh security update
    • Red Hat Enterprise Linux Client (v. 7) openssh-6.6.1p1-23.el7_2, openssh-askpass-6.6.1p1-23.el7_2, openssh-clients-6.6.1p1-23.el7_2 +2
    • Red Hat Enterprise Linux Client Optional (v. 7) openssh-ldap-6.6.1p1-23.el7_2, openssh-server-sysvinit-6.6.1p1-23.el7_2, pam_ssh_agent_auth-0.9.3-9.23.el7_2
    • Red Hat Enterprise Linux ComputeNode (v. 7) openssh-6.6.1p1-23.el7_2, openssh-clients-6.6.1p1-23.el7_2, openssh-keycat-6.6.1p1-23.el7_2 +1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) openssh-askpass-6.6.1p1-23.el7_2, openssh-ldap-6.6.1p1-23.el7_2, openssh-server-sysvinit-6.6.1p1-23.el7_2 +1
    • Red Hat Enterprise Linux Server (v. 7) openssh-6.6.1p1-23.el7_2, openssh-askpass-6.6.1p1-23.el7_2, openssh-clients-6.6.1p1-23.el7_2 +2
    • Red Hat Enterprise Linux Server Optional (v. 7) openssh-ldap-6.6.1p1-23.el7_2, openssh-server-sysvinit-6.6.1p1-23.el7_2, pam_ssh_agent_auth-0.9.3-9.23.el7_2 +1
    • Red Hat Enterprise Linux Workstation (v. 7) openssh-6.6.1p1-23.el7_2, openssh-askpass-6.6.1p1-23.el7_2, openssh-clients-6.6.1p1-23.el7_2 +2
    • Red Hat Enterprise Linux Workstation Optional (v. 7) openssh-ldap-6.6.1p1-23.el7_2, openssh-server-sysvinit-6.6.1p1-23.el7_2, pam_ssh_agent_auth-0.9.3-9.23.el7_2

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2016:0043
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2016:0043
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2016:0043
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2016:0043
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:0043
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2016:0043
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:0043
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2016:0043
Not affected: 3 products
  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-0777
  2. 2026-10-03 Alias added: GHSA-9h73-2pqx-3jh8

References

Advisory 30

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences