Vulnerability identifier: #VU33389

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

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
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00029.html
http://lists.debian.org/debian-lts-announce/2019/07/msg00026.html
http://talosintelligence.com/vulnerability_reports/TALOS-2019-0820
http://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.