CVE-2018-11386

medium

Description

An issue was discovered in the HttpFoundation component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. The PDOSessionHandler class allows storing sessions on a PDO connection. Under some configurations and with a well-crafted payload, it was possible to do a denial of service on a Symfony application without too much resources.

References

https://lists.fedoraproject.org/archives/list/[email protected]/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJV/

https://lists.fedoraproject.org/archives/list/[email protected]/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBW/

https://lists.fedoraproject.org/archives/list/[email protected]/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WH/

https://symfony.com/blog/cve-2018-11386-denial-of-service-when-using-pdosessionhandler

https://www.debian.org/security/2018/dsa-4262

Details

Source: MITRE

Published: 2018-06-13

Updated: 2019-03-29

Type: CWE-613

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 5.9

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

Impact Score: 3.6

Exploitability Score: 2.2

Severity: MEDIUM