CVE-2022-30973: Inefficient Regular Expression Complexity

May 31, 2022 (updated October 27, 2022)

We failed to apply the fix for CVE-2022-30126 to the 1.x branch in the 1.28.2 release. In Apache Tika, a regular expression in the StandardsText class, used by the StandardsExtractingContentHandler could lead to a denial of service caused by backtracking on a specially crafted file. This only affects users who are running the StandardsExtractingContentHandler, which is a non-standard handler. This is fixed in 1.28.3.

References

www.openwall.com/lists/oss-security/2022/05/31/2
lists.apache.org/thread/gqvb5t4p7tmdpl0y5bdbf72pgxj04h7p
nvd.nist.gov/vuln/detail/CVE-2022-30973

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