Medium severity · published Jun 13, 2018
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
5.9
CVSS
1.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0 · source: NVD
SY
Symfony · Sensiolabs
2.7.0 before 2.7.48; 2.8.0 before 2.8.41; 3.3.0 before 3.3.17; 3.4.0 before 3.4.11; 4.0.0 before 4.0.11 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-11386
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-11386
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJV/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBW/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WH/
Vendor Advisory
https://symfony.com/blog/cve-2018-11386-denial-of-service-when-using-pdosessionhandler
Third Party Advisory
https://www.debian.org/security/2018/dsa-4262
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