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Vulnerability record · CVE-2021-45943 · published 1 January 2022

CVE-2021-45943: Osgeo gdal out-of-bounds write vulnerability

Osgeo · Gdal

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).

5.5 CVSS 3.1 Medium EPSS 1.5% · top 26.9% CWE-787 · Out-of-bounds write
5.5CVSS 3.1 base score, v2 4.3
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
22References, 4 tagged exploit
17 Jun 2026Last modified by NVD

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).

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41993 ExploitIssue TrackingMailing ListPatchThird Party Advisory
https://github.com/OSGeo/gdal/commit/1ca6a3e5168c200763fa46d8aa7e698d0b757e7e PatchThird Party Advisory
https://github.com/OSGeo/gdal/pull/4944 ExploitPatchThird Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/gdal/OSV-2021-1651.yaml Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/01/msg00004.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00040.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JBPJGXY7IYY65NVJBLP3RON
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P23E4DEHY5FJCR5VJ46I6TO
https://security.gentoo.org/glsa/202210-15 Third Party Advisory
https://www.debian.org/security/2022/dsa-5239 Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html PatchThird Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41993 ExploitIssue TrackingMailing ListPatchThird Party Advisory
https://github.com/OSGeo/gdal/commit/1ca6a3e5168c200763fa46d8aa7e698d0b757e7e PatchThird Party Advisory
https://github.com/OSGeo/gdal/pull/4944 ExploitPatchThird Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/gdal/OSV-2021-1651.yaml Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/01/msg00004.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00040.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JBPJGXY7IYY65NVJBLP3RON
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P23E4DEHY5FJCR5VJ46I6TO
https://security.gentoo.org/glsa/202210-15 Third Party Advisory
https://www.debian.org/security/2022/dsa-5239 Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2021-45943), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.