Heap-based buffer overflow in GDAL - CVE-2021-45943

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Main Vulnerability Database Vulnerabilities #VU67710

Heap-based buffer overflow in GDAL - CVE-2021-45943

Published: September 28, 2022


Vulnerability identifier: #VU67710
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-45943
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the PCIDSK::CPCIDSKFile::ReadFromFile() function in frmts/pcidsk/sdk/segment/cpcidskbinarysegment.cpp. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

GDAL
Debian Linux
Gentoo Linux
Fedora
Oracle Database Server
gdal (Debian package)
gdal
mingw-gdal
sci-libs/gdal
mingw-python3

How to mitigate CVE-2021-45943

Install update from vendor's website.

gdal (Debian package) - update to 3.2.2+dfsg-2+deb11u2
gdal - addressed in versions 3.2.2-3.fc34, 3.3.3-1.fc35
mingw-gdal - addressed in versions 3.2.2-3.fc34, 3.3.3-3.fc35
sci-libs/gdal - update to 3.4.1
mingw-python3 - update to 3.10.4-1.fc35

External References

Related Security Bulletins