CVE-2019-3558 Information

Description

Python Facebook Thrift servers would not error upon receiving messages with containers of fields of unknown type. As a result malicious clients could send short messages which would take a long time for the server to parse potentially leading to denial of service. This issue affects Facebook Thrift prior to v2019.02.18.00.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/108274 https://github.com/facebook/fbthrift/commit/c5d6e07588cd03061bc54d451a7fa6e84883d62b https://www.facebook.com/security/advisories/cve-2019-3558

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5