#VU35181 Out-of-bounds write in IrfanView - CVE-2019-17250

Vulnerability identifier: #VU35181

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/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-2019-17250

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IrfanView
Client/Desktop applications / Office applications

Vendor: Irfan Skiljan

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

IrfanView 4.53 allows a User Mode Write AV starting at WSQ!ReadWSQ+0x00000000000042f5.

Mitigation
Install update from vendor's website.

Vulnerable software versions

IrfanView: 4.53

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External links
https://github.com/linhlhq/research/blob/master/README.md
https://www.irfanview.com/main_history.htm

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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.