CVE-2017-9233

NameCVE-2017-9233
DescriptionXML External Entity vulnerability in libexpat 2.2.0 and earlier (Expat XML Parser Library) allows attackers to put the parser in an infinite loop using a malformed external entity definition from an external DTD.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-990-1, DSA-3898-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
expat (PTS)wheezy2.1.0-1+deb7u2vulnerable
wheezy (security)2.1.0-1+deb7u5fixed
jessie (security), jessie2.1.0-6+deb8u4fixed
stretch (security), stretch2.2.0-2+deb9u1fixed
buster, sid2.2.3-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
expatsource(unstable)2.2.1-1medium
expatsourcejessie2.1.0-6+deb8u4mediumDSA-3898-1
expatsourcestretch2.2.0-2+deb9u1mediumDSA-3898-1
expatsourcewheezy2.1.0-1+deb7u5mediumDLA-990-1

Notes

https://libexpat.github.io/doc/cve-2017-9233/
https://github.com/libexpat/libexpat/commit/c4bf96bb51dd2a1b0e185374362ee136fe2c9d7f

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