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Fencer Intel
high 7.5

CVE-2010-5107 in the critical feed json

The default configuration of OpenSSH through 6.1 enforces a fixed time limit between establishing a TCP connection and completing a login,…

published 13y ago modified 4mo ago also EUVD-2010-5067

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
16.9%
EPSS 16.9% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

The default configuration of OpenSSH through 6.1 enforces a fixed time limit between establishing a TCP connection and completing a login, which makes it easier for remote attackers to cause a denial of service (connection-slot exhaustion) by periodically making many new TCP connections.

Patch / fix

  • openssh Debian 14, Debian 13, Debian 12 1:6.0p1-4

debian advisories DEBIAN-CVE-2010-5107

  • rhev-hypervisor6 RHEL 6 6.5-20131115.0.3.2.el6_5
  • openssh RHEL 6 5.3p1-94.el6
  • openssh-ldap RHEL 6 5.3p1-94.el6
  • openssh-server RHEL 6 5.3p1-94.el6
  • openssh-askpass RHEL 6 5.3p1-94.el6
  • openssh-clients RHEL 6 5.3p1-94.el6
  • pam_ssh_agent_auth RHEL 6 0.9.3-94.el6

red hat advisories RHSA-2013:1527RHSA-2013:1591

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-5107 updated cvss 5.0

openssh: Prevent connection slot exhaustion attacks

  • Red Hat Enterprise Linux 5 openssh
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Desktop (v. 6) openssh 5.3p1-94.el6, openssh-server 5.3p1-94.el6, openssh-askpass 5.3p1-94.el6, openssh-clients 5.3p1-94.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) openssh 5.3p1-94.el6, openssh-ldap 5.3p1-94.el6, pam_ssh_agent_auth 0.9.3-94.el6 Red Hat Enterprise Linux HPC Node (v. 6) openssh 5.3p1-94.el6, openssh-server 5.3p1-94.el6, openssh-clients 5.3p1-94.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) openssh 5.3p1-94.el6, openssh-ldap 5.3p1-94.el6, openssh-askpass 5.3p1-94.el6, pam_ssh_agent_auth 0.9.3-94.el6 Red Hat Enterprise Linux Server (v. 6) openssh 5.3p1-94.el6, openssh-server 5.3p1-94.el6, openssh-askpass 5.3p1-94.el6, openssh-clients 5.3p1-94.el6 Red Hat Enterprise Linux Server Optional (v. 6) openssh 5.3p1-94.el6, openssh-ldap 5.3p1-94.el6, pam_ssh_agent_auth 0.9.3-94.el6
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) openssh 5.3p1-94.el6, openssh-server 5.3p1-94.el6, openssh-askpass 5.3p1-94.el6, openssh-clients 5.3p1-94.el6 Red Hat Enterprise Linux Workstation Optional (v. 6) openssh 5.3p1-94.el6, openssh-ldap 5.3p1-94.el6, pam_ssh_agent_auth 0.9.3-94.el6
    fixed: vendor fix RHSA-2013:1591
  • Red Hat RHEV Hypervisor for RHEL-6 rhev-hypervisor6 6.5-20131115.0.3.2.el6_5
    fixed: vendor fix RHSA-2013:1527

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5mo ago

Exploit prediction

16.95% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.