High severity · published Mar 22, 2023
CVE-2023-28119
The crewjam/saml go library contains a partial implementation of the SAML standard in golang
7.5
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SA
Saml · Saml Project
0.4.12 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-28119
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-28119
Patch
https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021
Vendor Advisory
https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p
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