CVE-2019-19911

Description

There is a DoS vulnerability in Pillow before 6.2.2 caused by FpxImagePlugin.py calling the range function on an unvalidated 32-bit integer if the number of bands is large. On Windows running 32-bit Python, this results in an OverflowError or MemoryError due to the 2 GB limit. However, on Linux running 64-bit Python this results in the process being terminated by the OOM killer.

Predictions

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

References

• https://nvd.nist.gov/vuln/detail/CVE-2019-19911
• https://github.com/python-pillow/Pillow/commit/774e53bb132461d8d5ebefec1162e29ec0ebc63d
• https://github.com/advisories/GHSA-5gm3-px64-rw72
• https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2020-172.yaml
• https://github.com/python-pillow/Pillow/blob/master/CHANGES.rst#622-2020-01-02
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3DUMIBUYGJRAVJCTFUWBRLVQKOUTVX5P
• https://pillow.readthedocs.io/en/stable/releasenotes/6.2.2.html
• https://usn.ubuntu.com/4272-1
• https://www.debian.org/security/2020/dsa-4631
• https://www.suse.com/security/cve/CVE-2019-19911.html
• https://usn.ubuntu.com/4272-1/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3DUMIBUYGJRAVJCTFUWBRLVQKOUTVX5P/
• https://security-tracker.debian.org/tracker/CVE-2019-19911