mysql: use of SSL/TLS not enforced in libmysqld (Return of BACKRONYM)
Published Jul 18, 2018
3.1
LOWCVSS 3.1
EPSS 1.58%
Description
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Security: Encryption). Supported versions that are affected are 5.5.60 and prior, 5.6.40 and prior and 5.7.22 and prior. Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Server accessible data. CVSS 3.0 Base Score 3.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N).
Affected products
-
- Version 5.5.60 and priorStatusaffectedConstraints-
- Version 5.6.40 and priorStatusaffectedConstraints-
- Version 5.7.22 and priorStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oracle Corporation | MySQL Server | n/a |
|
Configuration 1
Configuration 2
- 8.0
- 9.0
Configuration 3
- 12.04
- 14.04
- 16.04
- 18.04
Configuration 4
- 12
- 7.0
- 7.5
- 7.6
- 7.7
- 7.0
- 7.6
- 7.7
- 7.6
- 7.7
- 7.0
Configuration 5
Configuration 6
- n/a
- n/a
- n/a
No data.
Red Hat Enterprise Linux 7
mariadb-1:5.5.60-1.el7_5
Fixed · RHSA-2018:2439
Red Hat Enterprise Linux 5
mysql55
Will not fix
Red Hat Enterprise Linux 6
mysql
Not affected
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
mariadb-galera
Not affected
Red Hat Mobile Application Platform 4
rhmap-mysql-docker
Not affected
Red Hat OpenStack Platform 10 (Newton)
mariadb-galera
Not affected
Red Hat OpenStack Platform 11 (Ocata)
mariadb-galera
Not affected
Red Hat OpenStack Platform 12 (Pike)
mariadb-galera
Not affected
Red Hat OpenStack Platform 13 (Queens)
mariadb-galera
Not affected
Red Hat OpenStack Platform 8 (Liberty)
mariadb-galera
Not affected
Red Hat OpenStack Platform 9 (Mitaka)
mariadb-galera
Not affected
Red Hat Software Collections
rh-mariadb100-mariadb
Not affected
Red Hat Software Collections
rh-mariadb101-mariadb
Not affected
Red Hat Software Collections
rh-mariadb102-mariadb
Not affected
Red Hat Software Collections
rh-mysql56-mysql
Not affected
Red Hat Software Collections
rh-mysql57-mysql
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | mariadb-1:5.5.60-1.el7_5 | Fixed | RHSA-2018:2439 |
| Red Hat Enterprise Linux 5 | mysql55 | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | mysql | Not affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | mariadb-galera | Not affected | n/a |
| Red Hat Mobile Application Platform 4 | rhmap-mysql-docker | Not affected | n/a |
| Red Hat OpenStack Platform 10 (Newton) | mariadb-galera | Not affected | n/a |
| Red Hat OpenStack Platform 11 (Ocata) | mariadb-galera | Not affected | n/a |
| Red Hat OpenStack Platform 12 (Pike) | mariadb-galera | Not affected | n/a |
| Red Hat OpenStack Platform 13 (Queens) | mariadb-galera | Not affected | n/a |
| Red Hat OpenStack Platform 8 (Liberty) | mariadb-galera | Not affected | n/a |
| Red Hat OpenStack Platform 9 (Mitaka) | mariadb-galera | Not affected | n/a |
| Red Hat Software Collections | rh-mariadb100-mariadb | Not affected | n/a |
| Red Hat Software Collections | rh-mariadb101-mariadb | Not affected | n/a |
| Red Hat Software Collections | rh-mariadb102-mariadb | Not affected | n/a |
| Red Hat Software Collections | rh-mysql56-mysql | Not affected | n/a |
| Red Hat Software Collections | rh-mysql57-mysql | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
AV:N/AC:M/Au:S/C:P/I:N/A:N
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Oct 2, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.58% (0.01579) | 74.63th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.52% (0.01515) | 71.13th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.38% (0.00377) | 56.29th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.98% (0.01978) | 72.70th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.39% (0.00387) | 57.81th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.12% (0.00119) | 47.80th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.11% (0.00109) | 43.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.13% (0.00128) | 45.80th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.27% (0.02273) | 50.89th | v5 (v2026.06.15) |
| Apr 14, 2021 | 2.27% (0.02273) | 0.00th | v1 |
References (14)
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html x_refsource_CONFIRMPatchVendor Advisory
- http://www.securityfocus.com/bid/103954 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041294 vdb-entryx_refsource_SECTRACKBroken LinkThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:2439 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2729 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-2767 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1564965 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2018/11/msg00004.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-2767
- https://security.netapp.com/advisory/ntap-20180726-0002/ x_refsource_CONFIRMThird Party Advisory
- https://usn.ubuntu.com/3725-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3725-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-2767
- https://www.debian.org/security/2018/dsa-4341 vendor-advisoryx_refsource_DEBIANThird Party Advisory
Change history (0)
No recorded changes yet.