A vulnerability was found in GNU LibreDWG 0.7/0.7.1645 (Image Processing Software). It has been declared as problematic. Affected by this vulnerability is the function dwg_dxf_LTYPE. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

An issue was discovered in GNU LibreDWG 0.7 and 0.7.1645. There is a NULL pointer dereference in the function dwg_dxf_LTYPE at dwg.spec (earlier than CVE-2019-9776).

The bug was discovered 03/12/2019. The weakness was released 03/14/2019 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2019-9779 since 03/14/2019. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 0.7 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-131730, VDB-131723, VDB-131724 and VDB-131725. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Image Processing Software

Vendor

• GNU

Name

• LibreDWG

Version

• 0.7
• 0.7.1645

License

• open-source

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CPE 2.2info

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