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TI-2015-04361 Aliases CVE-2015-5195GHSA-rr6m-2g2v-4vm5

ntp_openssl.m4 in ntpd in NTP before 4.2.7p112 allows remote attackers to cause a denial…

Priority MEDIUM 44CWE-20Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

Summary

ntp_openssl.m4 in ntpd in NTP before 4.2.7p112 allows remote attackers to cause a denial of service (segmentation fault) via a crafted statistics or filegen configuration command that is not enabled during compilation.

Why it matters now

EPSS 0.08753 95th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 16 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

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

CPE configurations NVD · 18

CPEVersionsRoleVendor
cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*21VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*22VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*23VulnerableFedoraproject
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_hpc_node:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
  • cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:* Versions 21 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* Versions 22 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* Versions 23 Vulnerable ·Fedoraproject
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_hpc_node:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
Show 8 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*12.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*15.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*15.10VulnerableCanonical
cpe:2.3:a:ntp:ntp:*:p111:*:*:*:*:*:*up to 4.2.7VulnerableNTP Project
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* Versions 12.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:* Versions 15.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* Versions 15.10 Vulnerable ·Canonical
  • cpe:2.3:a:ntp:ntp:*:p111:*:*:*:*:*:* Versions up to 4.2.7 Vulnerable ·NTP Project

Remediation

Red Hat 2 advisories

  • RHSA-2016:2583 Released 2016-11-03 · Red Hat rating Moderate
    ntp security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) ntp-4.2.6p5-25.el7, ntpdate-4.2.6p5-25.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) ntp-doc-4.2.6p5-25.el7, ntp-perl-4.2.6p5-25.el7, sntp-4.2.6p5-25.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) ntp-4.2.6p5-25.el7, ntpdate-4.2.6p5-25.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) ntp-doc-4.2.6p5-25.el7, ntp-perl-4.2.6p5-25.el7, sntp-4.2.6p5-25.el7
    • Red Hat Enterprise Linux Server (v. 7) ntp-4.2.6p5-25.el7, ntpdate-4.2.6p5-25.el7
    • Red Hat Enterprise Linux Server Optional (v. 7) ntp-doc-4.2.6p5-25.el7, ntp-perl-4.2.6p5-25.el7, sntp-4.2.6p5-25.el7
    • Red Hat Enterprise Linux Workstation (v. 7) ntp-4.2.6p5-25.el7, ntpdate-4.2.6p5-25.el7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) ntp-doc-4.2.6p5-25.el7, ntp-perl-4.2.6p5-25.el7, sntp-4.2.6p5-25.el7
  • RHSA-2016:0780 Released 2016-05-10 · Red Hat rating Moderate
    ntp security and bug fix update
    • Red Hat Enterprise Linux Desktop (v. 6) ntp-4.2.6p5-10.el6, ntpdate-4.2.6p5-10.el6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) ntp-doc-4.2.6p5-10.el6, ntp-perl-4.2.6p5-10.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) ntp-4.2.6p5-10.el6, ntpdate-4.2.6p5-10.el6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) ntp-doc-4.2.6p5-10.el6, ntp-perl-4.2.6p5-10.el6
    • Red Hat Enterprise Linux Server (v. 6) ntp-4.2.6p5-10.el6, ntpdate-4.2.6p5-10.el6
    • Red Hat Enterprise Linux Server Optional (v. 6) ntp-doc-4.2.6p5-10.el6, ntp-perl-4.2.6p5-10.el6
    • Red Hat Enterprise Linux Workstation (v. 6) ntp-4.2.6p5-10.el6, ntpdate-4.2.6p5-10.el6
    • Red Hat Enterprise Linux Workstation Optional (v. 6) ntp-doc-4.2.6p5-10.el6, ntp-perl-4.2.6p5-10.el6

Vendor assessments

Red Hat

Red Hat rating: Low. 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-2016:2583
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2016:2583
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2016:2583
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2016:2583
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2016:0780
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2016:0780
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2016:0780
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2016:0780
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2016:0780
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:2583
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2016:0780
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2016:2583
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2016:0780
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:2583
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2016:0780
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2016:2583

Timeline

  1. 2026-10-02 Threatist record created from CVE-2015-5195
  2. 2026-10-03 Alias added: GHSA-rr6m-2g2v-4vm5
  3. 2026-10-07 EPSS moved to the 95th–99th percentile

References

Patch 2

Advisory 12

Other 2

Sources

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