#VU58428 Stack-based buffer overflow in AfreecaTV - CVE-2020-7881

Vulnerability identifier: #VU58428

Vulnerability risk: Medium

CVSSv4.0: 5.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-7881

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
AfreecaTV
Client/Desktop applications / Other client software

Vendor: AfreecaTV

Description

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

The vulnerability exists due to a boundary error in the "strcpy()" function within the FanTicket field. A remote authenticated attacker can trigger stack-based buffer overflow 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

AfreecaTV: 1.0.0.1

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External links
https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36357

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.