Remote code execution in libheif

1) Buffer overflow

EUVDB-ID: #VU74494

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-23109

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when processing HEIF files within the convert_colorspace() function in heif_colorconversion.cc. A remote attacker can create a specially crafted HEIF image, trick the victim into opening it, trigger memory corruption 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

libheif: 1.0.0 - 1.6.2

CPE2.3

• cpe:2.3:a:strukturag:libheif:1.6.2:*:*:*:*:*:*:*
• cpe:2.3:a:strukturag:libheif:1.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:strukturag:libheif:1.6.0:*:*:*:*:*:*:*

External links

http://github.com/strukturag/libheif/issues/207

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.