#VU33389 Buffer overflow in sdl2_image - CVE-2019-5051

Vulnerability identifier: #VU33389

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/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-2019-5051

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
sdl2_image
Other software / Other software solutions

Vendor: zlib license

Description

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

An exploitable heap-based buffer overflow vulnerability exists when loading a PCX file in SDL2_image, version 2.0.4. A missing error handler can lead to a buffer overflow and potential code execution. An attacker can provide a specially crafted image file to trigger this vulnerability.

Mitigation
Install update from vendor's website.

Vulnerable software versions

sdl2_image: 2.0.4

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External links
https://lists.opensuse.org/opensuse-security-announce/2019-09/msg00012.html
https://lists.opensuse.org/opensuse-security-announce/2019-09/msg00029.html
https://lists.debian.org/debian-lts-announce/2019/07/msg00026.html
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0820
https://usn.ubuntu.com/4238-1/

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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.