CVE-2021-28678

Description

An issue was discovered in Pillow before 8.2.0. For BLP data, BlpImagePlugin did not properly check that reads (after jumping to file offsets) returned data. This could lead to a DoS where the decoder could be run a large number of times on empty data.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.38%
Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory readthedocs.io
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28678-fix-blp-dos release notes vendor advisory
https://github.com/python-pillow/Pillow/pull/5377 third party advisory patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/ vendor advisory
https://security.gentoo.org/glsa/202107-33 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-28678?
CVE-2021-28678 has been scored as a medium severity vulnerability.
How to fix CVE-2021-28678?
To fix CVE-2021-28678, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-28678 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-28678 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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