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Golang Facebook Thrift servers vulnerable to denial of service

High severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Sep 29, 2023

Package

gomod github.com/facebook/fbthrift (Go)

Affected versions

< 0.31.1-0.20200311080807-483ed864d69f

Patched versions

0.31.1-0.20200311080807-483ed864d69f

Description

Golang Facebook Thrift servers would not error upon receiving messages declaring containers of sizes larger than the payload. As a result, malicious clients could send short messages which would result in a large memory allocation, potentially leading to denial of service. This issue affects Facebook Thrift prior to v2020.03.16.00.

Specific Go Packages Affected

github.com/facebook/fbthrift/thrift/lib/go/thrift

References

Published by the National Vulnerability Database Mar 18, 2020
Published to the GitHub Advisory Database May 24, 2022
Reviewed Feb 8, 2023
Last updated Sep 29, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.105%
(44th percentile)

Weaknesses

CVE ID

CVE-2019-11939

GHSA ID

GHSA-w3r9-r9w7-8h48

Source code

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