mysql: race condition while setting stats during MyISAM table repair (CPU Oct 2016)
Published Dec 13, 2016
7.0
HIGHCVSS 3.0
EPSS 4.31%
Description
Race condition in Oracle MySQL before 5.5.52, 5.6.x before 5.6.33, 5.7.x before 5.7.15, and 8.x before 8.0.1; MariaDB before 5.5.52, 10.0.x before 10.0.28, and 10.1.x before 10.1.18; Percona Server before 5.5.51-38.2, 5.6.x before 5.6.32-78-1, and 5.7.x before 5.7.14-8; and Percona XtraDB Cluster before 5.5.41-37.0, 5.6.x before 5.6.32-25.17, and 5.7.x before 5.7.14-26.17 allows local users with certain permissions to gain privileges by leveraging use of my_copystat by REPAIR TABLE to repair a MyISAM table.
Affected products
No data.
Configuration 1
Configuration 2
- ≥ 5.5 · < 5.5.51-38.2
- ≥ 5.6 · < 5.6.32-78.1
- ≥ 5.7 · < 5.7.14-8
- ≥ 5.5 · < 5.5.41-37.0
- ≥ 5.6 · < 5.6.32-25.17
- ≥ 5.7 · < 5.7.14-26.17
Configuration 3
No data.
Red Hat Enterprise Linux 6
mysql-0:5.1.73-8.el6_8
Fixed · RHSA-2017:0184
Red Hat Enterprise Linux 7
mariadb-1:5.5.52-1.el7
Fixed · RHSA-2016:2595
Red Hat Software Collections for Red Hat Enterprise Linux 6
mariadb55-mariadb-0:5.5.53-1.el6
Fixed · RHSA-2016:2131
Red Hat Software Collections for Red Hat Enterprise Linux 6
mysql55-mysql-0:5.5.52-1.el6
Fixed · RHSA-2016:2130
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-mariadb100-mariadb-1:10.0.28-5.el6
Fixed · RHSA-2016:2927
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-mariadb101-mariadb-1:10.1.19-6.el6
Fixed · RHSA-2016:2928
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-mysql56-mysql-0:5.6.34-2.el6
Fixed · RHSA-2016:2749
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
mariadb55-mariadb-0:5.5.53-1.el6
Fixed · RHSA-2016:2131
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
mysql55-mysql-0:5.5.52-1.el6
Fixed · RHSA-2016:2130
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
mariadb55-mariadb-0:5.5.53-1.el6
Fixed · RHSA-2016:2131
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
mysql55-mysql-0:5.5.52-1.el6
Fixed · RHSA-2016:2130
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-mariadb100-mariadb-1:10.0.28-5.el6
Fixed · RHSA-2016:2927
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-mariadb101-mariadb-1:10.1.19-6.el6
Fixed · RHSA-2016:2928
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-mysql56-mysql-0:5.6.34-2.el6
Fixed · RHSA-2016:2749
Red Hat Software Collections for Red Hat Enterprise Linux 7
mariadb55-mariadb-0:5.5.53-1.el7
Fixed · RHSA-2016:2131
Red Hat Software Collections for Red Hat Enterprise Linux 7
mysql55-mysql-0:5.5.52-1.el7
Fixed · RHSA-2016:2130
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-mariadb100-mariadb-1:10.0.28-5.el7
Fixed · RHSA-2016:2927
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-mariadb101-mariadb-1:10.1.19-6.el7
Fixed · RHSA-2016:2928
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-mysql56-mysql-0:5.6.34-2.el7
Fixed · RHSA-2016:2749
Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
mariadb55-mariadb-0:5.5.53-1.el7
Fixed · RHSA-2016:2131
Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
mysql55-mysql-0:5.5.52-1.el7
Fixed · RHSA-2016:2130
Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
rh-mysql56-mysql-0:5.6.34-2.el7
Fixed · RHSA-2016:2749
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
mariadb55-mariadb-0:5.5.53-1.el7
Fixed · RHSA-2016:2131
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
mysql55-mysql-0:5.5.52-1.el7
Fixed · RHSA-2016:2130
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-mariadb100-mariadb-1:10.0.28-5.el7
Fixed · RHSA-2016:2927
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-mariadb101-mariadb-1:10.1.19-6.el7
Fixed · RHSA-2016:2928
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-mysql56-mysql-0:5.6.34-2.el7
Fixed · RHSA-2016:2749
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-mariadb100-mariadb-1:10.0.28-5.el7
Fixed · RHSA-2016:2927
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-mariadb101-mariadb-1:10.1.19-6.el7
Fixed · RHSA-2016:2928
Red Hat Enterprise Linux 5
mysql
Will not fix
Red Hat Enterprise Linux 5
mysql55-mysql
Will not fix
Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)
mariadb-galera
Will not fix
Red Hat Enterprise Linux OpenStack Platform 6 (Juno)
mariadb-galera
Will not fix
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
mariadb-galera
Will not fix
Red Hat Mobile Application Platform 4
millicore
Under investigation
Red Hat OpenStack Platform 10 (Newton)
mariadb-galera
Will not fix
Red Hat OpenStack Platform 11 (Ocata)
mariadb-galera
Will not fix
Red Hat OpenStack Platform 12 (Pike)
mariadb-galera
Will not fix
Red Hat OpenStack Platform 8 (Liberty)
mariadb-galera
Will not fix
Red Hat OpenStack Platform 9 (Mitaka)
mariadb-galera
Will not fix
Red Hat Software Collections
rh-mysql57-mysql
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | mysql-0:5.1.73-8.el6_8 | Fixed | RHSA-2017:0184 |
| Red Hat Enterprise Linux 7 | mariadb-1:5.5.52-1.el7 | Fixed | RHSA-2016:2595 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | mariadb55-mariadb-0:5.5.53-1.el6 | Fixed | RHSA-2016:2131 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | mysql55-mysql-0:5.5.52-1.el6 | Fixed | RHSA-2016:2130 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-mariadb100-mariadb-1:10.0.28-5.el6 | Fixed | RHSA-2016:2927 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-mariadb101-mariadb-1:10.1.19-6.el6 | Fixed | RHSA-2016:2928 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-mysql56-mysql-0:5.6.34-2.el6 | Fixed | RHSA-2016:2749 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | mariadb55-mariadb-0:5.5.53-1.el6 | Fixed | RHSA-2016:2131 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | mysql55-mysql-0:5.5.52-1.el6 | Fixed | RHSA-2016:2130 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | mariadb55-mariadb-0:5.5.53-1.el6 | Fixed | RHSA-2016:2131 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | mysql55-mysql-0:5.5.52-1.el6 | Fixed | RHSA-2016:2130 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-mariadb100-mariadb-1:10.0.28-5.el6 | Fixed | RHSA-2016:2927 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-mariadb101-mariadb-1:10.1.19-6.el6 | Fixed | RHSA-2016:2928 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-mysql56-mysql-0:5.6.34-2.el6 | Fixed | RHSA-2016:2749 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | mariadb55-mariadb-0:5.5.53-1.el7 | Fixed | RHSA-2016:2131 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | mysql55-mysql-0:5.5.52-1.el7 | Fixed | RHSA-2016:2130 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-mariadb100-mariadb-1:10.0.28-5.el7 | Fixed | RHSA-2016:2927 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-mariadb101-mariadb-1:10.1.19-6.el7 | Fixed | RHSA-2016:2928 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-mysql56-mysql-0:5.6.34-2.el7 | Fixed | RHSA-2016:2749 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS | mariadb55-mariadb-0:5.5.53-1.el7 | Fixed | RHSA-2016:2131 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS | mysql55-mysql-0:5.5.52-1.el7 | Fixed | RHSA-2016:2130 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS | rh-mysql56-mysql-0:5.6.34-2.el7 | Fixed | RHSA-2016:2749 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | mariadb55-mariadb-0:5.5.53-1.el7 | Fixed | RHSA-2016:2131 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | mysql55-mysql-0:5.5.52-1.el7 | Fixed | RHSA-2016:2130 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-mariadb100-mariadb-1:10.0.28-5.el7 | Fixed | RHSA-2016:2927 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-mariadb101-mariadb-1:10.1.19-6.el7 | Fixed | RHSA-2016:2928 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-mysql56-mysql-0:5.6.34-2.el7 | Fixed | RHSA-2016:2749 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-mariadb100-mariadb-1:10.0.28-5.el7 | Fixed | RHSA-2016:2927 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-mariadb101-mariadb-1:10.1.19-6.el7 | Fixed | RHSA-2016:2928 |
| Red Hat Enterprise Linux 5 | mysql | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | mysql55-mysql | Will not fix | n/a |
| Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse) | mariadb-galera | Will not fix | n/a |
| Red Hat Enterprise Linux OpenStack Platform 6 (Juno) | mariadb-galera | Will not fix | n/a |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | mariadb-galera | Will not fix | n/a |
| Red Hat Mobile Application Platform 4 | millicore | Under investigation | n/a |
| Red Hat OpenStack Platform 10 (Newton) | mariadb-galera | Will not fix | n/a |
| Red Hat OpenStack Platform 11 (Ocata) | mariadb-galera | Will not fix | n/a |
| Red Hat OpenStack Platform 12 (Pike) | mariadb-galera | Will not fix | n/a |
| Red Hat OpenStack Platform 8 (Liberty) | mariadb-galera | Will not fix | n/a |
| Red Hat OpenStack Platform 9 (Mitaka) | mariadb-galera | Will not fix | 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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.31% (0.04313) | 90.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.31% (0.04313) | 89.85th | v5 (v2026.06.15) |
| Jan 30, 2026 | 3.24% (0.03236) | 86.73th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.04% (0.02045) | 82.25th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.17% (0.03171) | 78.11th | v4 (v2025.03.14) |
| Mar 28, 2025 | 2.04% (0.02045) | 82.26th | v4 (v2025.03.14) |
| Mar 27, 2025 | 3.17% (0.03171) | 85.32th | v4 (v2025.03.14) |
| Mar 20, 2025 | 2.04% (0.02045) | 82.34th | v4 (v2025.03.14) |
| Mar 19, 2025 | 3.17% (0.03171) | 85.47th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.60% (0.01604) | 80.46th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00066) | 31.28th | v3 (v2023.03.01) |
| Jun 11, 2024 | 0.07% (0.00066) | 29.10th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00066) | 27.07th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.84% (0.05839) | 90.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.84% (0.05839) | 89.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.84% (0.05839) | 77.39th | v2 (v2022.01.01) |
References (29)
- http://rhn.redhat.com/errata/RHSA-2016-2130.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2131.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2595.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2749.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2927.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2928.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0184.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://seclists.org/fulldisclosure/2016/Nov/4 mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/25/4 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html x_refsource_CONFIRMPatchVendor Advisory
- http://www.securityfocus.com/bid/92911 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/93614 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-6663 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1378936 Issue Tracking
- https://dev.mysql.com/doc/relnotes/mysql/5.5/en/news-5-5-52.html x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-33.html x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-15.html x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-1.html x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://github.com/MariaDB/server/commit/347eeefbfc658c8531878218487d729f4e020805 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/mysql/mysql-server/commit/4e5473862e6852b0f3802b0cd0c6fa10b5253291 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://legalhackers.com/advisories/MySQL-Maria-Percona-PrivEscRace-CVE-2016-6663-5616-Exploit.html x_refsource_MISCExploitThird Party Advisory
- https://legalhackers.com/advisories/MySQL-Maria-Percona-PrivEscRace-CVE-2016-6663-5616-Exploit.txt
- https://mariadb.com/kb/en/mariadb/mariadb-10028-release-notes/ x_refsource_CONFIRMRelease NotesVendor Advisory
- https://mariadb.com/kb/en/mariadb/mariadb-10118-release-notes/ x_refsource_CONFIRMRelease NotesVendor Advisory
- https://mariadb.com/kb/en/mariadb/mariadb-5552-release-notes/ x_refsource_CONFIRMRelease NotesVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-6663
- https://www.cve.org/CVERecord?id=CVE-2016-6663
- https://www.exploit-db.com/exploits/40678/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
- https://www.percona.com/blog/2016/11/02/percona-responds-to-cve-2016-6663-and-cve-2016-6664/ x_refsource_CONFIRMVendor Advisory
Change history (0)
No recorded changes yet.