#VU17689 Heap out-of-bounds read in Simple DirectMedia Layer - CVE-2019-7637

Vulnerability identifier: #VU17689

Vulnerability risk: Low

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

CVE-ID: CVE-2019-7637

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Simple DirectMedia Layer
Client/Desktop applications / Multimedia software

Vendor: zlib license

Description

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

The vulnerability exists due to heap-based buffer over-read condition in the SDL_FillRect function. A remote attacker can trick the victim into accessing a crafted image file and perform a denial of service attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Simple DirectMedia Layer: 1.2.0 - 2.0.9

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External links
https://bugzilla.libsdl.org/show_bug.cgi?id=4499
https://discourse.libsdl.org/t/vulnerabilities-found-in-libsdl-1-2-15/25720

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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. However, proof of concept for this vulnerability is available.