CVE-2018-20406

Advisory

Python versions 3.4.10, 3.5.7, 3.6.7 and 3.7.1 include a fix for CVE-2018-20406: Modules/_pickle.c in Python before 3.7.1 has an integer overflow via a large LONG_BINPUT value that is mishandled during a "resize to twice the size" attempt. This issue might cause memory exhaustion, but is only relevant if the pickle format is used for serializing tens or hundreds of gigabytes of data.
https://bugs.python.org/issue34656

Affected package

Affected versions

Fixed versions

Vulnerability changelog

This vulnerability has no description

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20406
• https://github.com/python/cpython/commit/a4ae828ee416a66d8c7bf5ee71d653c2cc6a26dd
• https://bugs.python.org/issue34656
• https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html
• https://lists.fedoraproject.org/archives/list/[email protected]/message/JSKPGPZQNTAULHW4UH63KGOOUIDE4RRB/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/D3LXPABKVLFYUHRYJPM3CSS5MS6FXKS7/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/AEZ5IQT7OF7Q2NCGIVABOWYGKO7YU3NJ/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/ICBEGRHIPHWPG2VGYS6R4EVKVUUF4AQW/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/TR6GCO3WTV4D5L23WTCBF275VE6BVNI3/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/46PVWY5LFP4BRPG3BVQ5QEEFYBVEXHCK/
• https://security.netapp.com/advisory/ntap-20190416-0010/
• https://usn.ubuntu.com/4127-2/
• https://usn.ubuntu.com/4127-1/
• https://access.redhat.com/errata/RHSA-2019:3725
• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
• https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html