#VU24412 Double Free in LibreDWG


Published: 2020-01-20

Vulnerability identifier: #VU24412

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-20014

CWE-ID: CWE-415

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
LibreDWG
Universal components / Libraries / Libraries used by multiple products

Vendor: GNU

Description

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

The vulnerability exists due to a boundary error in "dwg_free" in "free.c". A remote attacker can 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

LibreDWG: 0.3 - 0.9.2.2470


External links
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00033.html
http://github.com/LibreDWG/libredwg/compare/0.9.2...0.9.3
http://github.com/LibreDWG/libredwg/issues/176
http://github.com/LibreDWG/libredwg/issues/176#issuecomment-568643172


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.


Latest bulletins with this vulnerability