What is CVE-2020-5312?

CVE-2020-5312 is a critical-severity software vulnerability (Buffer overflow) with a CVSS score of 9.8. libImaging/PcxDecode.c in Pillow before 6.2.2 has a PCX P mode buffer overflow.

Is CVE-2020-5312 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 4%.

What products does CVE-2020-5312 affect?

Tracked products affected include Fedora. Check the version you run to see whether it is affected.

How do I fix CVE-2020-5312?

Apply the vendor fix promptly. An official patch or advisory is available. Upgrade affected products to a fixed version.

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CVE-2020-5312

CRITICAL severity · CVSS 9.8 · Buffer overflow

9.8CVSS CRITICAL

Summary

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

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

Confidentiality impactHigh

Integrity impactHigh

Availability impactHigh

Exploit probability (EPSS)4%

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products we track (1)

Fedora

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: https://github.com/python-pillow/Pillow/commit/93b22b846e0269ee9594ff71a72bec02d2bea8fd ↗

Additional information

NVD record
https://github.com/python-pillow/Pillow/commit/93b22b846e0269ee9594ff71a72bec02d2bea8fdPatch
https://access.redhat.com/errata/RHSA-2020:0566Advisory
https://access.redhat.com/errata/RHSA-2020:0578Advisory
https://access.redhat.com/errata/RHSA-2020:0580Advisory
https://access.redhat.com/errata/RHSA-2020:0681Advisory
https://access.redhat.com/errata/RHSA-2020:0683Advisory
https://access.redhat.com/errata/RHSA-2020:0694Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MMU3WT2X64GS5WHDPKKC2WZA7UIIQ3A/