Vulnerability in Sensiolabs Symfony
CVE-2018-11386
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.016 (75.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Sensiolabs Symfony
- Debian Linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- symfony.com/blog/cve-2018-11386-denial-of-service-when-using-pdosessionhandler (Vendor Advisory)
- www.debian.org/security/2018/dsa-4262 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-11386?
- CVE-2018-11386 is a medium-severity vulnerability in Sensiolabs Symfony, classified under Insufficient Session Expiration. CVSS score: 5.9/10. Published 2018-06-13.
- How severe is CVE-2018-11386?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2018-11386 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.