Buffer overflow in libexif

1) Buffer overflow

EUVDB-ID: #VU48198

Risk: High

CVSSv3.1: 3.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-0452

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 compiler optimization that removes protection against buffer overflow in libexif. A remote attacker can create a specially crafted EXIF file, 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

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

libexif: 0.6.9 - 0.6.22

External links

http://github.com/libexif/libexif/commit/9266d14b5ca4e29b970fa03272318e5f99386e06
http://source.android.com/security/bulletin/2020-11-01

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.