Out-of-bounds Read in Python Pillow

CVE-2020-10177

Pillow before 7.1.0 has multiple out-of-bounds reads in libImaging/FliDecode.c.

Vulnerability class: Buffer Overflow

EPSS: 0.015 (71.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-10177?
CVE-2020-10177 is a medium-severity vulnerability in Python Pillow, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2020-06-25.
How severe is CVE-2020-10177?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2020-10177 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.