CVE-2017-3305
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: C API).
Does this matter?
Lower severity and a low EPSS score (1.36%). Track it; it rarely justifies an emergency change on its own.
Description
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: C API). Supported versions that are affected are 5.5.55 and earlier and 5.6.35 and earlier. 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 access to critical data or complete access to all MySQL Server accessible data. CVSS 3.0 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N). NOTE: the previous information is from the April 2017 CPU. Oracle has not commented on third-party claims that this issue allows man-in-the-middle attackers to hijack the authentication of users by leveraging incorrect ordering of security parameter verification in a client, aka, "The Riddle".
- CVSS 3.0
- 5.3 MEDIUMCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.36% probability · 72th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-319
- Affected
- oracle/mysql · debian/debian linux
- Source
- secalert_us@oracle.com
EPSS 1.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://riddle.link/Third Party Advisory
- http://www.debian.org/security/2017/dsa-3834Third Party Advisory
- http://www.openwall.com/lists/oss-security/2017/03/17/3Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.htmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/97023Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038287Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2787Third Party Advisory
- http://riddle.link/Third Party Advisory
- http://www.debian.org/security/2017/dsa-3834Third Party Advisory
- http://www.openwall.com/lists/oss-security/2017/03/17/3Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.htmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/97023Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038287Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2787Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.