Descriptionperl-XML-Twig: The option to `expand_external_ents`, documented as controlling external entity expansion in XML::Twig does not work. External entities are always expanded, regardless of the option's setting.
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
Debian Bugs842893

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxml-twig-perl (PTS)stretch1:3.50-1vulnerable
bullseye, sid1:3.52-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[stretch] - libxml-twig-perl <no-dsa> (Minor issue; can be fixed via point release)
[jessie] - libxml-twig-perl <no-dsa> (Minor issue; can be fixed via point release)
[wheezy] - libxml-twig-perl <no-dsa> (Minor issue, new flag would require changes to applications too, not worth the effort)
Release 3.50 adds a no_xxe flag which will fail to parse files with external entities.
2016-12-13: The corresponding changes is not in the public git repository yet:

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