CVE-2017-7375

NameCVE-2017-7375
DescriptionA flaw in libxml2 allows remote XML entity inclusion with default parser flags (i.e., when the caller did not request entity substitution, DTD validation, external DTD subset loading, or default DTD attributes). Depending on the context, this may expose a higher-risk attack surface in libxml2 not usually reachable with default parser flags, and expose content from local files, HTTP, or FTP servers (which might be otherwise unreachable).
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)
ReferencesDLA-1008-1, DSA-3952-1
NVD severityhigh (attack range: remote)
Debian Bugs870867

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxml2 (PTS)jessie (security), jessie2.9.1+dfsg1-5+deb8u6fixed
stretch (security), stretch2.9.4+dfsg1-2.2+deb9u2fixed
buster, sid2.9.4+dfsg1-7fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libxml2source(unstable)2.9.4+dfsg1-3.1high870867
libxml2sourcejessie2.9.1+dfsg1-5+deb8u5highDSA-3952-1
libxml2sourcestretch2.9.4+dfsg1-2.2+deb9u1highDSA-3952-1
libxml2sourcewheezy2.8.0+dfsg1-7+wheezy8highDLA-1008-1

Notes

https://bugzilla.gnome.org/show_bug.cgi?id=780691 (not yet public)
Android patch: https://android.googlesource.com/platform/external/libxml2/+/308396a55280f69ad4112d4f9892f4cbeff042aa
Fix upstream: https://git.gnome.org/browse/libxml2/commit/?id=90ccb58242866b0ba3edbef8fe44214a101c2b3e

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