CVE-2017-7509: An input validation error was found in Red Hat Certificate System's handling of client provided certificates before 8.1.20-1

Medium severity · published Jul 26, 2018

CVE-2017-7509

An input validation error was found in Red Hat Certificate System's handling of client provided certificates before 8.1.20-1

6.5

CVSS

0.7%

EPSS

On KEV

Description

An input validation error was found in Red Hat Certificate System's handling of client provided certificates before 8.1.20-1. If the certreq field is not present in a certificate an assertion error is triggered causing a denial of service.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack vector

Network

Complexity

Low

Privileges

Low

User interaction

None

Confidentiality

None

Integrity

None

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.7% · higher than 54% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Certificate System · Redhat

before 8.1.20-1 · source: NVD

Affected product

Certificate System

Redhat

All Certificate System CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2017-7509

CVE.org

https://www.cve.org/CVERecord?id=CVE-2017-7509

Third Party Advisory

http://www.securitytracker.com/id/1039248

Vendor Advisory

https://access.redhat.com/errata/RHSA-2017:2560

Issue Tracking

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7509