CVE-2023-28119

crewjam/saml vulnerable to Denial Of Service Via Deflate Decompression Bomb

Description

The crewjam/saml go library contains a partial implementation of the SAML standard in golang. Prior to version 0.4.13, the package's use of `flate.NewReader` does not limit the size of the input. The user can pass more than 1 MB of data in the HTTP request to the processing functions, which will be decompressed server-side using the Deflate algorithm. Therefore, after repeating the same request multiple times, it is possible to achieve a reliable crash since the operating system kills the process. This issue is patched in version 0.4.13.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.18%
Vendor Advisory github.com
Affected: crewjam saml
Published at:
Updated at:

References

Link Tags
https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p vendor advisory
https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021 patch

Frequently Asked Questions

What is the severity of CVE-2023-28119?
CVE-2023-28119 has been scored as a high severity vulnerability.
How to fix CVE-2023-28119?
To fix CVE-2023-28119, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-28119 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-28119 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-28119?
CVE-2023-28119 affects crewjam saml.
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