high
7.5
CWE
400 20
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2021-27922: Input Validation

First published: Wed Mar 03 2021(Updated: )

Pillow before 8.1.1 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICNS container, and thus an attempted memory allocation can be very large.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/python-pillow<0:5.1.1-16.el8
0:5.1.1-16.el8
Python Pillow<8.1.1
Fedoraproject Fedora=32
Fedoraproject Fedora=33
Fedoraproject Fedora=34
redhat/python-pillow<8.1.2
8.1.2
pip/Pillow<8.1.1
8.1.1
Fedora=32
Fedora=33
Fedora=34

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2021-27922?

    CVE-2021-27922 is a vulnerability found in python-pillow that allows attackers to cause a denial of service due to improper checking of the reported size of an ICNS container, resulting in large memory allocation.

  • How does CVE-2021-27922 impact the affected software?

    CVE-2021-27922 can cause a denial of service by consuming excessive memory in the affected software.

  • How severe is CVE-2021-27922?

    CVE-2021-27922 has a severity rating of 7.5 out of 10, indicating a high severity.

  • How can I fix CVE-2021-27922 in Pillow?

    To fix CVE-2021-27922 in Pillow, update to version 8.1.1 or later.

  • Where can I find more information about CVE-2021-27922?

    You can find more information about CVE-2021-27922 at the following references: - [CVE Record](https://www.cve.org/CVERecord?id=CVE-2021-27922) - [NVD](https://nvd.nist.gov/vuln/detail/CVE-2021-27922) - [Red Hat Bugzilla](https://bugzilla.redhat.com/show_bug.cgi?id=1935396) - [Red Hat Advisory](https://access.redhat.com/errata/RHSA-2021:4149)

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