CVE-2018-14647

Advisory

Python versions 2.7.16, 3.4.10, 3.5.7, 3.6.7 and 3.7.1 include a fix for CVE-2018-14647: Python's elementtree C accelerator failed to initialise Expat's hash salt during initialization. This could make it easy to conduct denial of service attacks against Expat by constructing an XML document that would cause pathological hash collisions in Expat's internal data structures, consuming large amounts CPU and RAM.
https://bugs.python.org/issue34623

Affected package

Affected versions

Fixed versions

Vulnerability changelog

This vulnerability has no description

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14647
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14647
• https://bugs.python.org/issue34623
• http://www.securityfocus.com/bid/105396
• https://www.debian.org/security/2018/dsa-4306
• https://www.debian.org/security/2018/dsa-4307
• http://www.securitytracker.com/id/1041740
• https://usn.ubuntu.com/3817-1/
• https://usn.ubuntu.com/3817-2/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/RBJCB2HWOJLP3L7CUQHJHNBHLSVOXJE5/
• https://access.redhat.com/errata/RHSA-2019:1260
• https://lists.debian.org/debian-lts-announce/2019/06/msg00023.html
• https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html
• https://access.redhat.com/errata/RHSA-2019:2030
• https://access.redhat.com/errata/RHSA-2019:3725
• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
• https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0@%3Cissues.bookkeeper.apache.org%3E