Pillow before 2.7.0 allows remote attackers to cause a denial of service via a compressed text chunk in a PNG image that has a large size when it is decompressed.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-9601
• python-pillow/Pillow#1060
• https://www.djangoproject.com/weblog/2015/jan/02/pillow-security-release/
• http://lists.fedoraproject.org/pipermail/package-announce/2015-January/148442.html
• http://lists.opensuse.org/opensuse-updates/2015-04/msg00056.html
• http://pillow.readthedocs.org/releasenotes/2.7.0.html
• http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
• https://web.archive.org/web/20200227221255/http://www.securityfocus.com/bid/77758