CVE-2021-40812: Medium severity Libgd Libgd vulnerability

Published Sep 8, 2021
·
Updated

Last updated 15 November 2024

Other sources

The GD Graphics Library (aka LibGD) through 2.3.2 has an out-of-bounds read because of the lack of certain gdGetBuf and gdPutBuf return value checks.

Affected Software

2 affected componentsFixes available
debian/libgd2<=2.3.0-2
2.3.3-92.3.3-12
Libgd Libgd<=2.3.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/libgd2 to a version that resolves this vulnerability.

    Fixed in 2.3.3-9Fixed in 2.3.3-12
  2. Upgrade

    Upgrade GD Graphics Library (LibGD) to a version that resolves this vulnerability.

    Fixed in 2.3.2

Event History

Sep 8, 2021
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·09:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Nov 15, 2024
Data Sourced
via Launchpad·02:03 AM
Description
Nov 19, 2024
Data Sourced
via Ubuntu·02:03 AM
RemedyDescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is CVE-2021-40812?

CVE-2021-40812 is a vulnerability in the GD Graphics Library (LibGD) that allows for an out-of-bounds read due to the lack of certain return value checks in gdGetBuf and gdPutBuf.

2

How severe is CVE-2021-40812?

CVE-2021-40812 has a severity rating of 6.5, making it a medium severity vulnerability.

3

What software is affected by CVE-2021-40812?

The LibGD library version up to and including 2.3.2 is affected by CVE-2021-40812.

4

What is the Common Weakness Enumeration (CWE) ID for CVE-2021-40812?

The CWE ID for CVE-2021-40812 is CWE-125, which corresponds to Out-of-bounds Read.

5

How can I mitigate CVE-2021-40812?

To mitigate CVE-2021-40812, it is recommended to update LibGD to a version that includes the fix, such as version 2.3.3 or later.

Company

Resources

Contact

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CVE-2021-40812 - Medium severity Libgd Libgd vulnerability - SecAlerts