mysql: insecure error log file handling in mysqld_safe (CPU Oct 2016)
Published Dec 13, 2016
7.0
HIGHCVSS 3.1
EPSS 2.97%
Description
mysqld_safe in Oracle MySQL through 5.5.51, 5.6.x through 5.6.32, and 5.7.x through 5.7.14; MariaDB; 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, when using file-based logging, allows local users with access to the mysql account to gain root privileges via a symlink attack on error logs and possibly other files.
Affected products
No data.
Configuration 1
Configuration 2
Configuration 3
- ≥ 5.5 · < 5.5.51-38.2
- ≥ 5.6 · < 5.6.32-78.1
- ≥ 5.7 · < 5.7.14-8
Configuration 4
- ≥ 5.5 · < 5.5.41-37.0
- ≥ 5.6 · < 5.6.32-25.17
- ≥ 5.7 · < 5.7.14-26.17
No data.
Red Hat Enterprise Linux 7
mariadb-1:5.5.56-2.el7
Fixed · RHSA-2017:2192
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-1:10.0.33-3.el6
Fixed · RHSA-2018:0279
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-mariadb101-galera-0:25.3.12-12.el6
Fixed · RHSA-2018:0574
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-mariadb101-mariadb-1:10.1.29-3.el6
Fixed · RHSA-2018:0574
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
mysql55-mysql-0:5.5.52-1.el6
Fixed · RHSA-2016:2130
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-1:10.0.33-3.el6
Fixed · RHSA-2018:0279
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-mariadb101-galera-0:25.3.12-12.el6
Fixed · RHSA-2018:0574
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-mariadb101-mariadb-1:10.1.29-3.el6
Fixed · RHSA-2018:0574
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
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-1:10.0.33-3.el7
Fixed · RHSA-2018:0279
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-mariadb101-galera-0:25.3.12-12.el7
Fixed · RHSA-2018:0574
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-mariadb101-mariadb-1:10.1.29-3.el7
Fixed · RHSA-2018:0574
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
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
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-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-1:10.0.33-3.el7
Fixed · RHSA-2018:0279
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-mariadb101-galera-0:25.3.12-12.el7
Fixed · RHSA-2018:0574
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-mariadb101-mariadb-1:10.1.29-3.el7
Fixed · RHSA-2018:0574
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS
rh-mariadb100-mariadb-1:10.0.33-3.el7
Fixed · RHSA-2018:0279
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS
rh-mariadb101-galera-0:25.3.12-12.el7
Fixed · RHSA-2018:0574
Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS
rh-mariadb101-mariadb-1:10.1.29-3.el7
Fixed · RHSA-2018:0574
Red Hat Enterprise Linux 5
mysql55-mysql
Will not fix
Red Hat Enterprise Linux 6
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 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
mariadb55-mariadb
Affected
Red Hat Software Collections
rh-mariadb100-mariadb
Affected
Red Hat Software Collections
rh-mariadb101-mariadb
Affected
Red Hat Software Collections
rh-mysql57-mysql
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | mariadb-1:5.5.56-2.el7 | Fixed | RHSA-2017:2192 |
| 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-1:10.0.33-3.el6 | Fixed | RHSA-2018:0279 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-mariadb101-galera-0:25.3.12-12.el6 | Fixed | RHSA-2018:0574 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-mariadb101-mariadb-1:10.1.29-3.el6 | Fixed | RHSA-2018:0574 |
| 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 | mysql55-mysql-0:5.5.52-1.el6 | Fixed | RHSA-2016:2130 |
| 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-1:10.0.33-3.el6 | Fixed | RHSA-2018:0279 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-mariadb101-galera-0:25.3.12-12.el6 | Fixed | RHSA-2018:0574 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-mariadb101-mariadb-1:10.1.29-3.el6 | Fixed | RHSA-2018:0574 |
| 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 | 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-1:10.0.33-3.el7 | Fixed | RHSA-2018:0279 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-mariadb101-galera-0:25.3.12-12.el7 | Fixed | RHSA-2018:0574 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-mariadb101-mariadb-1:10.1.29-3.el7 | Fixed | RHSA-2018:0574 |
| 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 | 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 | 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-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-1:10.0.33-3.el7 | Fixed | RHSA-2018:0279 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-mariadb101-galera-0:25.3.12-12.el7 | Fixed | RHSA-2018:0574 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-mariadb101-mariadb-1:10.1.29-3.el7 | Fixed | RHSA-2018:0574 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS | rh-mariadb100-mariadb-1:10.0.33-3.el7 | Fixed | RHSA-2018:0279 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS | rh-mariadb101-galera-0:25.3.12-12.el7 | Fixed | RHSA-2018:0574 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS | rh-mariadb101-mariadb-1:10.1.29-3.el7 | Fixed | RHSA-2018:0574 |
| Red Hat Enterprise Linux 5 | mysql55-mysql | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | 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 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 | mariadb55-mariadb | Affected | n/a |
| Red Hat Software Collections | rh-mariadb100-mariadb | Affected | n/a |
| Red Hat Software Collections | rh-mariadb101-mariadb | 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:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:M/Au:N/C:C/I:C/A:C
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 (26 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.97% (0.02966) | 86.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.08% (0.03080) | 85.93th | v5 (v2026.06.15) |
| May 26, 2026 | 62.12% (0.62118) | 98.37th | v4 (v2025.03.14) |
| May 24, 2026 | 65.91% (0.65906) | 98.53th | v4 (v2025.03.14) |
| May 22, 2026 | 62.12% (0.62118) | 98.37th | v4 (v2025.03.14) |
| Mar 6, 2026 | 54.39% (0.54393) | 97.97th | v4 (v2025.03.14) |
| Mar 2, 2026 | 44.69% (0.44687) | 97.52th | v4 (v2025.03.14) |
| Feb 18, 2026 | 47.12% (0.47117) | 97.60th | v4 (v2025.03.14) |
| Feb 7, 2026 | 44.69% (0.44687) | 97.47th | v4 (v2025.03.14) |
| Jan 24, 2026 | 47.12% (0.47117) | 97.58th | v4 (v2025.03.14) |
| Dec 14, 2025 | 44.69% (0.44687) | 97.43th | v4 (v2025.03.14) |
| Nov 19, 2025 | 40.20% (0.40198) | 97.17th | v4 (v2025.03.14) |
| Sep 11, 2025 | 47.13% (0.47131) | 97.61th | v4 (v2025.03.14) |
| May 30, 2025 | 44.69% (0.44687) | 97.40th | v4 (v2025.03.14) |
| May 6, 2025 | 47.35% (0.47351) | 97.51th | v4 (v2025.03.14) |
| Apr 23, 2025 | 49.77% (0.49767) | 97.62th | v4 (v2025.03.14) |
| Apr 3, 2025 | 47.35% (0.47351) | 97.45th | v4 (v2025.03.14) |
| Mar 17, 2025 | 44.69% (0.44687) | 97.27th | v4 (v2025.03.14) |
| Feb 10, 2025 | 6.07% (0.06074) | 93.51th | v3 (v2023.03.01) |
| Dec 17, 2024 | 21.40% (0.21402) | 96.43th | v3 (v2023.03.01) |
| May 8, 2023 | 11.76% (0.11756) | 94.42th | v3 (v2023.03.01) |
| Mar 7, 2023 | 11.36% (0.11358) | 94.28th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (20)
- http://legalhackers.com/advisories/MySQL-Maria-Percona-RootPrivEsc-CVE-2016-6664-5617-Exploit.html x_refsource_MISCExploitThird Party Advisory
- http://packetstormsecurity.com/files/139491/MySQL-MariaDB-PerconaDB-Root-Privilege-Escalation.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- http://rhn.redhat.com/errata/RHSA-2016-2130.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2749.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://seclists.org/fulldisclosure/2016/Nov/4 mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
- http://www.debian.org/security/2017/dsa-3770 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html x_refsource_CONFIRMPatchVendor Advisory
- http://www.securityfocus.com/archive/1/539695/100/0/threaded mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/93612 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:2192 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0279 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0574 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-6664 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1386564 Issue Tracking
- https://legalhackers.com/advisories/MySQL-Maria-Percona-RootPrivEsc-CVE-2016-6664-5617-Exploit.txt
- https://nvd.nist.gov/vuln/detail/CVE-2016-6664
- https://security.gentoo.org/glsa/201702-18 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-6664
- https://www.exploit-db.com/exploits/40679/ 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.