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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTU2cDgtM2ZoOS00Y3Zx
XStream is vulnerable to an attack using Regular Expression for a Denial of Service (ReDos)
The vulnerability may allow a remote attacker to occupy a thread that consumes maximum CPU time and will never return. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types.
If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
See workarounds for the different versions covering all CVEs.
See full information about the nature of the vulnerability and the steps to reproduce it in XStream's documentation for CVE-2021-21348.
The vulnerability was discovered and reported by threedr3am.
For more information
If you have any questions or comments about this advisory:https://github.com/advisories/GHSA-56p8-3fh9-4cvq
Source: GitHub Advisory Database
Published: over 2 years ago
Updated: 8 months ago
CVSS Score: 5.3
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Identifiers: GHSA-56p8-3fh9-4cvq, CVE-2021-21348
- https://lists.fedoraproject.org/archives/list/[email protected]/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/QGXIU3YDPG6OGTDHMBLAFN7BPBERXREB/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7/
Fixed in: 1.4.16