CVE-2019-11830

Description

PharMetaDataInterceptor in the PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before 3.1.1 for TYPO3 mishandles Phar stub parsing, which allows attackers to bypass a deserialization protection mechanism.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 2.54% Top 20%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory typo3.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://typo3.org/security/advisory/typo3-psa-2019-008/ vendor advisory
https://github.com/TYPO3/phar-stream-wrapper/releases/tag/v3.1.1 third party advisory release notes
https://github.com/TYPO3/phar-stream-wrapper/releases/tag/v2.1.1 third party advisory release notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6JX7WR6DPMKCZQP7EYFACYXSGJ3K523/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUEXS4HRI4XZ2DTZMWAVQBYBTFSJ34AR/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/65ODQHDHWR74L6TCAPAQR5FQHG6MCXAW/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-11830?
CVE-2019-11830 has been scored as a critical severity vulnerability.
How to fix CVE-2019-11830?
To fix CVE-2019-11830, 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-2019-11830 being actively exploited in the wild?
It is possible that CVE-2019-11830 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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