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TI-2016-01878 Aliases CVE-2016-2047GHSA-gw5g-54qg-7583

The ssl_verify_server_cert function in sql-common/client.c in MariaDB before 5.5.47…

Priority LOW 33CWE-254Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Partial Red Hat: 16 fixed, 6 without a fix

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

Summary

The ssl_verify_server_cert function in sql-common/client.c in MariaDB before 5.5.47, 10.0.x before 10.0.23, and 10.1.x before 10.1.10; Oracle MySQL 5.5.48 and earlier, 5.6.29 and earlier, and 5.7.11 and earlier; and Percona Server do not properly verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a "/CN=" string in a field in a certificate, as demonstrated by "/OU=/CN=bar.com/CN=foo.com."

Why it matters now

EPSS 0.03741 89th percentileScored 2026-11-07
Fix Partial Red Hat: 5 advisoriesRed Hat: 16 fixed, 6 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 · 12

CPEVersionsRoleVendor
cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*5.5.20 to before 5.5.47; 10.0.0 to before 10.0.23; 10.1.0 to before 10.1.10VulnerableMariaDB
cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*7VulnerableOracle
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*5.5.0 – 5.5.48; 5.6.0 – 5.6.29; 5.7.0 – 5.7.11VulnerableOracle
cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*42.1VulnerableopenSUSE
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
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:a:mariadb:mariadb:*:*:*:*:*:*:*:* Versions 5.5.20 to before 5.5.47; 10.0.0 to before 10.0.23; 10.1.0 to before 10.1.10 Vulnerable ·MariaDB
  • cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* Versions 7 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:* Versions 5.5.0 – 5.5.48; 5.6.0 – 5.6.29; 5.7.0 – 5.7.11 Vulnerable ·Oracle
  • cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* Versions 42.1 Vulnerable ·openSUSE
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 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
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*15.10VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
  • cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* Versions 15.10 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical

Remediation

Red Hat 5 advisories

  • RHSA-2016:1480 Released 2016-07-25 · Red Hat rating Important
    mysql55-mysql security update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) mysql55-mysql-5.5.50-1.el6, mysql55-mysql-bench-5.5.50-1.el6, mysql55-mysql-devel-5.5.50-1.el6 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) mysql55-mysql-5.5.50-1.el7, mysql55-mysql-bench-5.5.50-1.el7, mysql55-mysql-devel-5.5.50-1.el7 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) mysql55-mysql-5.5.50-1.el6, mysql55-mysql-bench-5.5.50-1.el6, mysql55-mysql-devel-5.5.50-1.el6 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) mysql55-mysql-5.5.50-1.el6, mysql55-mysql-bench-5.5.50-1.el6, mysql55-mysql-devel-5.5.50-1.el6 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) mysql55-mysql-5.5.50-1.el7, mysql55-mysql-bench-5.5.50-1.el7, mysql55-mysql-devel-5.5.50-1.el7 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) mysql55-mysql-5.5.50-1.el7, mysql55-mysql-bench-5.5.50-1.el7, mysql55-mysql-devel-5.5.50-1.el7 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) mysql55-mysql-5.5.50-1.el6, mysql55-mysql-bench-5.5.50-1.el6, mysql55-mysql-devel-5.5.50-1.el6 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) mysql55-mysql-5.5.50-1.el7, mysql55-mysql-bench-5.5.50-1.el7, mysql55-mysql-devel-5.5.50-1.el7 +3
  • RHSA-2016:1481 Released 2016-07-25 · Red Hat rating Moderate
    mariadb55-mariadb security update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) mariadb55-mariadb-5.5.49-1.el6, mariadb55-mariadb-bench-5.5.49-1.el6, mariadb55-mariadb-devel-5.5.49-1.el6 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) mariadb55-mariadb-5.5.49-1.el7, mariadb55-mariadb-bench-5.5.49-1.el7, mariadb55-mariadb-devel-5.5.49-1.el7 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) mariadb55-mariadb-5.5.49-1.el6, mariadb55-mariadb-bench-5.5.49-1.el6, mariadb55-mariadb-devel-5.5.49-1.el6 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) mariadb55-mariadb-5.5.49-1.el6, mariadb55-mariadb-bench-5.5.49-1.el6, mariadb55-mariadb-devel-5.5.49-1.el6 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) mariadb55-mariadb-5.5.49-1.el7, mariadb55-mariadb-bench-5.5.49-1.el7, mariadb55-mariadb-devel-5.5.49-1.el7 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) mariadb55-mariadb-5.5.49-1.el7, mariadb55-mariadb-bench-5.5.49-1.el7, mariadb55-mariadb-devel-5.5.49-1.el7 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) mariadb55-mariadb-5.5.49-1.el6, mariadb55-mariadb-bench-5.5.49-1.el6, mariadb55-mariadb-devel-5.5.49-1.el6 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) mariadb55-mariadb-5.5.49-1.el7, mariadb55-mariadb-bench-5.5.49-1.el7, mariadb55-mariadb-devel-5.5.49-1.el7 +3
  • RHSA-2016:1132 Released 2016-05-26 · Red Hat rating Important
    rh-mariadb100-mariadb security update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-mariadb100-mariadb-1:10.0.25-4.el6, rh-mariadb100-mariadb-bench-1:10.0.25-4.el6, rh-mariadb100-mariadb-common-1:10.0.25-4.el6 +6
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-mariadb100-mariadb-1:10.0.25-4.el7, rh-mariadb100-mariadb-bench-1:10.0.25-4.el7, rh-mariadb100-mariadb-common-1:10.0.25-4.el7 +6
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) rh-mariadb100-mariadb-1:10.0.25-4.el6, rh-mariadb100-mariadb-bench-1:10.0.25-4.el6, rh-mariadb100-mariadb-common-1:10.0.25-4.el6 +6
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) rh-mariadb100-mariadb-1:10.0.25-4.el6, rh-mariadb100-mariadb-bench-1:10.0.25-4.el6, rh-mariadb100-mariadb-common-1:10.0.25-4.el6 +6
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) rh-mariadb100-mariadb-1:10.0.25-4.el7, rh-mariadb100-mariadb-bench-1:10.0.25-4.el7, rh-mariadb100-mariadb-common-1:10.0.25-4.el7 +6
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) rh-mariadb100-mariadb-1:10.0.25-4.el7, rh-mariadb100-mariadb-bench-1:10.0.25-4.el7, rh-mariadb100-mariadb-common-1:10.0.25-4.el7 +6
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-mariadb100-mariadb-1:10.0.25-4.el6, rh-mariadb100-mariadb-bench-1:10.0.25-4.el6, rh-mariadb100-mariadb-common-1:10.0.25-4.el6 +6
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-mariadb100-mariadb-1:10.0.25-4.el7, rh-mariadb100-mariadb-bench-1:10.0.25-4.el7, rh-mariadb100-mariadb-common-1:10.0.25-4.el7 +6
Show 2 more Red Hat advisories
  • RHSA-2016:0705 Released 2016-05-02 · Red Hat rating Critical
    rh-mysql56-mysql security update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-mysql56-mysql-5.6.30-1.el6, rh-mysql56-mysql-bench-5.6.30-1.el6, rh-mysql56-mysql-common-5.6.30-1.el6 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-mysql56-mysql-5.6.30-1.el7, rh-mysql56-mysql-bench-5.6.30-1.el7, rh-mysql56-mysql-common-5.6.30-1.el7 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) rh-mysql56-mysql-5.6.30-1.el6, rh-mysql56-mysql-bench-5.6.30-1.el6, rh-mysql56-mysql-common-5.6.30-1.el6 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) rh-mysql56-mysql-5.6.30-1.el6, rh-mysql56-mysql-bench-5.6.30-1.el6, rh-mysql56-mysql-common-5.6.30-1.el6 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) rh-mysql56-mysql-5.6.30-1.el7, rh-mysql56-mysql-bench-5.6.30-1.el7, rh-mysql56-mysql-common-5.6.30-1.el7 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) rh-mysql56-mysql-5.6.30-1.el7, rh-mysql56-mysql-bench-5.6.30-1.el7, rh-mysql56-mysql-common-5.6.30-1.el7 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-mysql56-mysql-5.6.30-1.el6, rh-mysql56-mysql-bench-5.6.30-1.el6, rh-mysql56-mysql-common-5.6.30-1.el6 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-mysql56-mysql-5.6.30-1.el7, rh-mysql56-mysql-bench-5.6.30-1.el7, rh-mysql56-mysql-common-5.6.30-1.el7 +5
  • RHSA-2016:0534 Released 2016-03-31 · Red Hat rating Moderate
    mariadb security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) mariadb-1:5.5.47-1.el7_2, mariadb-libs-1:5.5.47-1.el7_2, mariadb-server-1:5.5.47-1.el7_2
    • Red Hat Enterprise Linux Client Optional (v. 7) mariadb-bench-1:5.5.47-1.el7_2, mariadb-devel-1:5.5.47-1.el7_2, mariadb-embedded-1:5.5.47-1.el7_2 +2
    • Red Hat Enterprise Linux ComputeNode (v. 7) mariadb-1:5.5.47-1.el7_2, mariadb-libs-1:5.5.47-1.el7_2
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) mariadb-bench-1:5.5.47-1.el7_2, mariadb-devel-1:5.5.47-1.el7_2, mariadb-embedded-1:5.5.47-1.el7_2 +3
    • Red Hat Enterprise Linux Server (v. 7) mariadb-1:5.5.47-1.el7_2, mariadb-bench-1:5.5.47-1.el7_2, mariadb-devel-1:5.5.47-1.el7_2 +5
    • Red Hat Enterprise Linux Server Optional (v. 7) mariadb-embedded-1:5.5.47-1.el7_2, mariadb-embedded-1:5.5.47-1.el7_2.ppc, mariadb-embedded-devel-1:5.5.47-1.el7_2 +1
    • Red Hat Enterprise Linux Workstation (v. 7) mariadb-1:5.5.47-1.el7_2, mariadb-bench-1:5.5.47-1.el7_2, mariadb-devel-1:5.5.47-1.el7_2 +3
    • Red Hat Enterprise Linux Workstation Optional (v. 7) mariadb-embedded-1:5.5.47-1.el7_2, mariadb-embedded-devel-1:5.5.47-1.el7_2

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 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux OpenStack Platform 6 (Juno)AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)AffectedNo fix planned: Will not fix
Red Hat OpenStack Platform 8 (Liberty)AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2016:0534
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2016:0534
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2016:0534
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2016:0534
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:0534
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2016:0534
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:0534
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2016:0534
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2016:0705, RHSA-2016:1132, RHSA-2016:1480, RHSA-2016:1481
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:0705, RHSA-2016:1132, RHSA-2016:1480, RHSA-2016:1481
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6)Fixed RHSA-2016:0705, RHSA-2016:1132, RHSA-2016:1480, RHSA-2016:1481
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7)Fixed RHSA-2016:0705, RHSA-2016:1132, RHSA-2016:1480, RHSA-2016:1481
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1)Fixed RHSA-2016:0705, RHSA-2016:1132, RHSA-2016:1480, RHSA-2016:1481
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2)Fixed RHSA-2016:0705, RHSA-2016:1132, RHSA-2016:1480, RHSA-2016:1481
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2016:0705, RHSA-2016:1132, RHSA-2016:1480, RHSA-2016:1481
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:0705, RHSA-2016:1132, RHSA-2016:1480, RHSA-2016:1481
Not affected: 1 product
  • Red Hat Software Collections

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-2047
  2. 2026-10-03 Alias added: GHSA-gw5g-54qg-7583

References

Patch 1

Advisory 21

Sources

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