CVE-2021-45943

Name: CVE-2021-45943
Creator: NVD / NIST
Published: 2022-01-01T01:15:09.1+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.49%

Last modified Jun 17, 2026

CVE-2021-45943 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. GDAL 3.3.0 through 3.4.0 has a heap-based buffer overflow in PCIDSK::CPCIDSKFile::ReadFromFile (called from PCIDSK::CPCIDSKSegment::ReadFromFile and PCIDSK::CPCIDSKBinarySegment::CPCIDSKBinarySegment).. EPSS estimates a 1.49% chance of exploitation in the next 30 days.

Description

GDAL 3.3.0 through 3.4.0 has a heap-based buffer overflow in PCIDSK::CPCIDSKFile::ReadFromFile (called from PCIDSK::CPCIDSKSegment::ReadFromFile and PCIDSK::CPCIDSKBinarySegment::CPCIDSKBinarySegment).

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

1.49%

70.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Osgeo	Gdal	>= 3.3.0, <= 3.4.0
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0
Fedoraproject	Fedora	34
Fedoraproject	Fedora	35
Oracle	Spatial And Graph	19c
Oracle	Spatial And Graph	21c

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41993Exploit, Issue Tracking, Mailing List, Patch, Third Party Advisory
https://github.com/OSGeo/gdal/commit/1ca6a3e5168c200763fa46d8aa7e698d0b757e7ePatch, Third Party Advisory
https://github.com/OSGeo/gdal/pull/4944Exploit, Patch, Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/gdal/OSV-2021-1651.yamlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/01/msg00004.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00040.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JBPJGXY7IYY65NVJBLP3RONXE7ZBVCNU/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P23E4DEHY5FJCR5VJ46I6TO32DT7Y3T4/
https://security.gentoo.org/glsa/202210-15Third Party Advisory
https://www.debian.org/security/2022/dsa-5239Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41993Exploit, Issue Tracking, Mailing List, Patch, Third Party Advisory
https://github.com/OSGeo/gdal/commit/1ca6a3e5168c200763fa46d8aa7e698d0b757e7ePatch, Third Party Advisory
https://github.com/OSGeo/gdal/pull/4944Exploit, Patch, Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/gdal/OSV-2021-1651.yamlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/01/msg00004.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00040.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JBPJGXY7IYY65NVJBLP3RONXE7ZBVCNU/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P23E4DEHY5FJCR5VJ46I6TO32DT7Y3T4/
https://security.gentoo.org/glsa/202210-15Third Party Advisory
https://www.debian.org/security/2022/dsa-5239Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory

Timeline

Published: Jan 1, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45943?

How severe is CVE-2021-45943?

CVE-2021-45943 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.49% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45943?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-45943?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST