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No exploitation reportedFix available

CVE-2021-40145

No exploitation reported by the sources we read.

  • Published2021-08-26
  • WeaknessCWE-415

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

gdImageGd2Ptr in gd_gd2.c in the GD Graphics Library (aka LibGD) through 2.3.2 has a double free. NOTE: the vendor's position is "The GD2 image format is a proprietary image format of libgd. It has to be regarded as being obsolete, and should only be used for development and testing purposes.

Timeline

dates in UTC
  1. 2021-08-2601:15CVE publishedNVD

Versions per branch

NVD
Libgd
BranchAffectedFixed in
2.3≤ 2.3.2no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • gdTuxCare:RHEL:7all versions · fixed in 2.0.35-27.el7_9.tuxcare.els1and 2 other packages
  • gdTuxCare:OracleLinux:7all versions · fixed in 2.0.35-27.el7_9.tuxcare.els1and 2 other packages
  • gdTuxCare:OracleLinux:6all versions · fixed in 2.0.35-12.el6.cloudlinux.elsand 2 other packages
  • gdTuxCare:CentOS:8.5all versions · fixed in 2.2.5-7.el8.tuxcare.els1and 2 other packages
  • gdTuxCare:CentOS:8.4all versions · fixed in 2.2.5-7.el8.tuxcare.els1and 2 other packages
  • gdTuxCare:CentOS:6all versions · fixed in 2.0.35-12.el6.cloudlinux.elsand 2 other packages
  • gdTuxCare:CentOS-Stream:8all versions · fixed in 2.2.5-7.el8.tuxcare.els1and 2 other packages
  • gdTuxCare:AlmaLinux:9.2all versions · fixed in 2.3.2-3.el9.tuxcare.els1and 2 other packages

31 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2021-08-26
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-8rm3-jg2c-hvfh

Frequently asked questions

What is CVE-2021-40145?

gdImageGd2Ptr in gd_gd2.c in the GD Graphics Library (aka LibGD) through 2.3.2 has a double free. NOTE: the vendor's position is "The GD2 image format is a proprietary image format of libgd. It has to be regarded as being obsolete, and should only be used for development and testing purposes.

Is CVE-2021-40145 actively exploited?

Active exploitation of CVE-2021-40145 has not been confirmed. Its EPSS score was 2.1% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-40145?

CVE-2021-40145 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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