Multiple vulnerabilities in GDAL

Published: 2019-10-14 | Updated: 2019-11-10

Severity	High
Patch available	YES
Number of vulnerabilities	2
CVE ID	CVE-2019-17545 CVE-2019-17546
CWE ID	CWE-415 CWE-190
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	GDAL Subscribe
Vendor	gdal.org

Security Advisory

1) Double Free

Severity: High

CVSSv3: 7.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2019-17545

CWE-ID: CWE-415 - Double Free

Description

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

The vulnerability exists due to a boundary error within the OGRExpatRealloc() function in ogr/ogr_expat.cpp. A remote attacker can pass a large amount of data to the application (more than 10M), trigger double free error and execute arbitrary code on the target system.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

GDAL: 2.4.0, 2.4.1, 2.4.2, 3.0.0, 3.0.1

CPE

External links

http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00022.html
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16178
https://github.com/OSGeo/gdal/commit/148115fcc40f1651a5d15fa34c9a8c528e7147bb

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Integer overflow