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CVE-2017-3309

22
FAUCET Score

CVE-2017-3309 is a denial-of-service vulnerability affecting the MySQL Server component (Optimizer subcomponent) in Oracle MySQL versions 5.5.54 and earlier, 5.6.35 and earlier, and 5.7.17 and earlier, also impacting Debian, MariaDB, and Red Hat. This easily exploitable flaw allows a low-privileged network attacker to cause a complete and frequently repeatable crash of the MySQL Server. With a CVSS v3.0 base score of 7.7 (High), the primary impact is to availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.5.0, <= 5.5.54CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
>= 5.6.0, <= 5.6.35CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
>= 5.7.0, <= 5.7.17CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
>= 5.5.0, < 5.5.55CPE matchmatch criteria
cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.7HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.1
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.08%
Probability of exploitation in next 30 days
EPSS Percentile
86.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0308 is in the 85th percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (35)

oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: mariadb-1:5.5.56-2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-mysql56-mysql-0:5.6.37-5.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-mysql57-mysql-0:5.7.19-6.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-mariadb100-mariadb-1:10.0.33-3.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-mariadb101-galera-0:25.3.12-12.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-mariadb101-mariadb-1:10.1.29-3.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-mysql56-mysql-0:5.6.37-5.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-mysql57-mysql-0:5.7.19-6.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-mariadb100-mariadb-1:10.0.33-3.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-mariadb101-galera-0:25.3.12-12.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-mariadb101-mariadb-1:10.1.29-3.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mysql56-mysql-0:5.6.37-5.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mysql57-mysql-0:5.7.19-6.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mariadb100-mariadb-1:10.0.33-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mariadb101-galera-0:25.3.12-12.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mariadb101-mariadb-1:10.1.29-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSFixed in: rh-mysql56-mysql-0:5.6.37-5.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSFixed in: rh-mysql57-mysql-0:5.7.19-6.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSFixed in: rh-mariadb100-mariadb-1:10.0.33-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSFixed in: rh-mariadb101-galera-0:25.3.12-12.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSFixed in: rh-mariadb101-mariadb-1:10.1.29-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: rh-mariadb100-mariadb-1:10.0.33-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: rh-mariadb101-galera-0:25.3.12-12.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: rh-mariadb101-mariadb-1:10.1.29-3.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: mysql55-mysql
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: mysql
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)Fixed in: mariadb-galera
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6 (Juno)Fixed in: mariadb-galera
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)Fixed in: mariadb-galera
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 10 (Newton)Fixed in: mariadb-galera
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 11 (Ocata)Fixed in: mariadb-galera
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 12 (Pike)Fixed in: mariadb-galera
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 8 (Liberty)Fixed in: mariadb-galera
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 9 (Mitaka)Fixed in: mariadb-galera

Vendor Advisories (1)

redhatCVE-2017-3309Moderate

mysql: Server: Optimizer unspecified vulnerability (CPU Apr 2017)

Apr 19, 2017

References

access.redhat.com / errata/RHSA-2017:2192
Third Party Advisory
access.redhat.com / errata/RHSA-2017:2787
Third Party Advisory
access.redhat.com / errata/RHSA-2017:2886
Third Party Advisory
access.redhat.com / errata/RHSA-2018:0279
Third Party Advisory
access.redhat.com / errata/RHSA-2018:0574
Third Party Advisory
debian.org / security/2017/dsa-3834
Third Party Advisory
debian.org / security/2017/dsa-3944
Third Party Advisory
oracle.com / technetwork/security-advisory/cpuapr2017-3236618.html
PatchVendor Advisory
securityfocus.com / bid/97742
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038287
Broken LinkThird Party AdvisoryVDB Entry