GHSA-6wf9-jmg9-vxcc

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GHSA-6wf9-jmg9-vxcc

Summary: XStream can cause a Denial of Service

Details: ### Impact The vulnerability may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. ### Patches XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose. ### Workarounds See [workarounds](https://x-stream.github.io/security.html#workaround) for the different versions covering all CVEs. ### References See full information about the nature of the vulnerability and the steps to reproduce it in XStream's documentation for [CVE-2021-39140](https://x-stream.github.io/CVE-2021-39140.html). ### Credits The vulnerability was discovered and reported by Lai Han of nsfocus security team. ### For more information If you have any questions or comments about this advisory: * Open an issue in [XStream](https://github.com/x-stream/xstream/issues) * Contact us at [XStream Google Group](https://groups.google.com/group/xstream-user)

References: https://github.com/x-stream/xstream/security/advisories/GHSA-6wf9-jmg9-vxcc, https://nvd.nist.gov/vuln/detail/CVE-2021-39140, https://github.com/x-stream/xstream, https://lists.debian.org/debian-lts-announce/2021/09/msg00017.html, https://lists.fedoraproject.org/archives/list/[email protected]/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP, https://lists.fedoraproject.org/archives/list/[email protected]/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7, https://lists.fedoraproject.org/archives/list/[email protected]/message/QGXIU3YDPG6OGTDHMBLAFN7BPBERXREB, https://security.netapp.com/advisory/ntap-20210923-0003, https://www.debian.org/security/2021/dsa-5004, https://www.oracle.com/security-alerts/cpuapr2022.html, https://www.oracle.com/security-alerts/cpujan2022.html, https://www.oracle.com/security-alerts/cpujul2022.html, https://x-stream.github.io/CVE-2021-39140.html