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python-pillow/pillow · Security

Pillow Denial of Service by Uncontrolled Resource Consumption

GHSA ID
GHSA-95q3-8gr9-gm8w
CVE ID
CVE-2021-27923
Severity
high
Published
Updated
CVSS
7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v3
7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Description

Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICO container, and thus an attempted memory allocation can be very large.

CWEs

  • CWE-20 · Improper Input Validation
  • CWE-400 · Uncontrolled Resource Consumption

References

Open GitHub