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Rack rubygems receiving excessively long lines triggers out-of-memory error

Moderate severity GitHub Reviewed Published Oct 24, 2017 to the GitHub Advisory Database • Updated Aug 28, 2023

Package

bundler rack (RubyGems)

Affected versions

>= 1.3.0, < 1.3.8
>= 1.4.0, < 1.4.3

Patched versions

1.3.8
1.4.3

Description

multipart/parser.rb in Rack 1.3.x before 1.3.8 and 1.4.x before 1.4.3 allows remote attackers to cause a denial of service (memory consumption and out-of-memory error) via a long string in a Multipart HTTP packet.

References

Published by the National Vulnerability Database Mar 1, 2013
Published to the GitHub Advisory Database Oct 24, 2017
Reviewed Jun 16, 2020
Last updated Aug 28, 2023

Severity

Moderate

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(82nd percentile)

Weaknesses

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data. Learn more on MITRE.

Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource. Learn more on MITRE.

CVE ID

CVE-2013-0183

GHSA ID

GHSA-3pxh-h8hw-mj8w

Source code

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