CVE-2021-29425

NameCVE-2021-29425
DescriptionIn Apache Commons IO before 2.7, When invoking the method FileNameUtils.normalize with an improper input string, like "//../foo", or "\\..\foo", the result would be the same value, thus possibly providing access to files in the parent directory, but not further above (thus "limited" path traversal), if the calling code would use the result to construct a path value.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
commons-io (PTS)stretch2.5-1vulnerable
buster2.6-2vulnerable
bullseye, sid2.8.0-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
commons-iosource(unstable)2.8.0-1

Notes

[stretch] - commons-io <no-dsa> (Minor issue)
https://www.openwall.com/lists/oss-security/2021/04/12/1
https://issues.apache.org/jira/browse/IO-556

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