What’s Vulnerable › Vulnerabilities

CVE-2020-5312

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-01-03 · updated 2026-06-17
• Weakness: CWE-120

Description

libImaging/PcxDecode.c in Pillow before 6.2.2 has a PCX P mode buffer overflow.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 19.10
• Debian Linux: 9.0, 10.0
• Fedoraproject Fedora: 30, 31
• python-pillow Pillow: before 6.2.2 — fixed in 6.2.2

How to fix

Upgrade to a fixed version: python-pillow Pillow 6.2.2. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/errata/RHSA-2020:0566
• https://access.redhat.com/errata/RHSA-2020:0578
• https://access.redhat.com/errata/RHSA-2020:0580
• https://access.redhat.com/errata/RHSA-2020:0681
• https://access.redhat.com/errata/RHSA-2020:0683
• https://access.redhat.com/errata/RHSA-2020:0694
• https://github.com/python-pillow/Pillow/commit/93b22b846e0269ee9594ff71a72bec02d2bea8fd
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MMU3WT2X64GS5WHDPKKC2WZA7UIIQ3A/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.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

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