What is CVE-2020-5311?

CVE-2020-5311 is a critical-severity software vulnerability (Buffer overflow) with a CVSS score of 9.8. libImaging/SgiRleDecode.c in Pillow before 6.2.2 has an SGI buffer overflow.

Is CVE-2020-5311 being actively exploited?

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

What products does CVE-2020-5311 affect?

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

How do I fix CVE-2020-5311?

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

← All products

CVE-2020-5311

CRITICAL severity · CVSS 9.8 · Buffer overflow

9.8CVSS CRITICAL

Summary

libImaging/SgiRleDecode.c in Pillow before 6.2.2 has an SGI 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/a79b65c47c7dc6fe623aadf09aa6192fc54548f3 ↗

Additional information

NVD record
https://github.com/python-pillow/Pillow/commit/a79b65c47c7dc6fe623aadf09aa6192fc54548f3Patch
https://access.redhat.com/errata/RHSA-2020:0566Advisory
https://access.redhat.com/errata/RHSA-2020:0580Advisory
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.htmlAdvisory
https://usn.ubuntu.com/4272-1/Advisory
https://www.debian.org/security/2020/dsa-4631Advisory