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TI-2014-02136 Aliases CVE-2014-2653GHSA-52r2-7jx8-c8gc

The verify_host_key function in sshconnect.c in the client in OpenSSH 6.6 and earlier…

Priority LOW 33CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Partial Red Hat: 16 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.

Summary

The verify_host_key function in sshconnect.c in the client in OpenSSH 6.6 and earlier allows remote servers to trigger the skipping of SSHFP DNS RR checking by presenting an unacceptable HostCertificate.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01988 80th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 2 advisoriesRed Hat: 16 fixed, 1 without a fix

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 · 7

CPEVersionsRoleVendor
cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*up to 6.6VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.0:*:*:*:*:*:*:*6.0VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.1:*:*:*:*:*:*:*6.1VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.2:*:*:*:*:*:*:*6.2VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.3:*:*:*:*:*:*:*6.3VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.4:*:*:*:*:*:*:*6.4VulnerableOpenBSD
cpe:2.3:a:openbsd:openssh:6.5:*:*:*:*:*:*:*6.5VulnerableOpenBSD
  • cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* Versions up to 6.6 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.1:*:*:*:*:*:*:* Versions 6.1 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.2:*:*:*:*:*:*:* Versions 6.2 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.3:*:*:*:*:*:*:* Versions 6.3 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.4:*:*:*:*:*:*:* Versions 6.4 Vulnerable ·OpenBSD
  • cpe:2.3:a:openbsd:openssh:6.5:*:*:*:*:*:*:* Versions 6.5 Vulnerable ·OpenBSD

Remediation

Red Hat 2 advisories

  • RHSA-2015:0425 Released 2015-03-05 · Red Hat rating Moderate
    openssh security, bug fix and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) openssh-6.6.1p1-11.el7, openssh-askpass-6.6.1p1-11.el7, openssh-clients-6.6.1p1-11.el7 +2
    • Red Hat Enterprise Linux Client Optional (v. 7) openssh-ldap-6.6.1p1-11.el7, openssh-server-sysvinit-6.6.1p1-11.el7, pam_ssh_agent_auth-0.9.3-9.11.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) openssh-6.6.1p1-11.el7, openssh-clients-6.6.1p1-11.el7, openssh-keycat-6.6.1p1-11.el7 +1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) openssh-askpass-6.6.1p1-11.el7, openssh-ldap-6.6.1p1-11.el7, openssh-server-sysvinit-6.6.1p1-11.el7 +1
    • Red Hat Enterprise Linux Server (v. 7) openssh-6.6.1p1-11.el7, openssh-askpass-6.6.1p1-11.el7, openssh-clients-6.6.1p1-11.el7 +2
    • Red Hat Enterprise Linux Server Optional (v. 7) openssh-ldap-6.6.1p1-11.el7, openssh-server-sysvinit-6.6.1p1-11.el7, pam_ssh_agent_auth-0.9.3-9.11.el7 +1
    • Red Hat Enterprise Linux Workstation (v. 7) openssh-6.6.1p1-11.el7, openssh-askpass-6.6.1p1-11.el7, openssh-clients-6.6.1p1-11.el7 +2
    • Red Hat Enterprise Linux Workstation Optional (v. 7) openssh-ldap-6.6.1p1-11.el7, openssh-server-sysvinit-6.6.1p1-11.el7, pam_ssh_agent_auth-0.9.3-9.11.el7
  • RHSA-2014:1552 Released 2014-10-13 · Red Hat rating Moderate
    openssh security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Desktop (v. 6) openssh-5.3p1-104.el6, openssh-askpass-5.3p1-104.el6, openssh-clients-5.3p1-104.el6 +1
    • Red Hat Enterprise Linux Desktop Optional (v. 6) openssh-ldap-5.3p1-104.el6, pam_ssh_agent_auth-0.9.3-104.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) openssh-5.3p1-104.el6, openssh-clients-5.3p1-104.el6, openssh-server-5.3p1-104.el6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) openssh-askpass-5.3p1-104.el6, openssh-ldap-5.3p1-104.el6, pam_ssh_agent_auth-0.9.3-104.el6
    • Red Hat Enterprise Linux Server (v. 6) openssh-5.3p1-104.el6, openssh-askpass-5.3p1-104.el6, openssh-clients-5.3p1-104.el6 +1
    • Red Hat Enterprise Linux Server Optional (v. 6) openssh-ldap-5.3p1-104.el6, pam_ssh_agent_auth-0.9.3-104.el6, pam_ssh_agent_auth-0.9.3-104.el6.ppc
    • Red Hat Enterprise Linux Workstation (v. 6) openssh-5.3p1-104.el6, openssh-askpass-5.3p1-104.el6, openssh-clients-5.3p1-104.el6 +1
    • Red Hat Enterprise Linux Workstation Optional (v. 6) openssh-ldap-5.3p1-104.el6, pam_ssh_agent_auth-0.9.3-104.el6

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2015:0425
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2015:0425
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2015:0425
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2015:0425
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2014:1552
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2014:1552
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2014:1552
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2014:1552
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2014:1552
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2015:0425
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2014:1552
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2015:0425
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2014:1552
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2015:0425
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2014:1552
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2015:0425

Timeline

  1. 2026-10-02 Threatist record created from CVE-2014-2653
  2. 2026-10-03 Alias added: GHSA-52r2-7jx8-c8gc

References

Exploit 1

Advisory 9

Other 4

  • TI-2023-19792 The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently… CVSS 3.1CRITICAL 9.8
  • TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
  • TI-2023-10601 OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during… CVSS 3.1MEDIUM 6.5
  • TI-2018-11033 OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying… CVSS 3.1MEDIUM 5.9
  • TI-2016-08105 Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4… CVSS 3.1HIGH 7.3
  • TI-2023-28040 In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host… CVSS 3.1MEDIUM 6.5
See all 145 →

Sources

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