#VU67136 Integer overflow in libEMF - CVE-2020-13999

Vulnerability identifier: #VU67136

Vulnerability risk: High

CVSSv4.0: 6.1 [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/E:U/U:Amber]

CVE-ID: CVE-2020-13999

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

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

Vendor: libemf

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow within the ScaleViewPortExtEx() function in libemf.cpp when processing EMF files. A remote attacker can pass specially crafted EMF file to the application, trigger an integer overflow and crash the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libEMF: 0.0 - 1.0.12

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External links
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/555PIBSHDUZD26UCJ5DHCQ4W7RXEZC66/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CVZXYNDM4YOONMXYPW2GTMIS6V6JBIL6/
https://sourceforge.net/p/libemf/news/2020/06/release-of-libemf-1013/

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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.