ALPINE-CVE-2023-43787 — Vulnetix

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ALPINE-CVE-2023-43787 PUBLISHED CVSS 7.800000190734863 HIGH

A vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated privileges.

Risk Scores

CVSS v3.1

7.800000190734863

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions
Alpine:v3.20	libx11	1.5.99.902-r0, 1.8.6-r0, 1.8.5-r2
Alpine:v3.21	libx11	1.1.99.2-r0, 1.8.6-r0, 1.8.5-r2
Alpine:v3.19	libx11	1.6.5-r2, 1.8.4-r4, 1.8.5-r0
Alpine:v3.18	libx11	1.7.2-r0, 1.7.3-r0, 1.7.3.1-r0
Alpine:v3.23	libx11	1.8.6-r0, 0, 1.1.99.2-r0
Alpine:v3.17	libx11	1.3.3-r1, 1.3.5-r0, 1.3.6-r0
Alpine:v3.22	libx11	1.7.2-r0, 1.7.3-r0, 1.7.3.1-r0
Alpine:v3.16	libx11	0, 1.4.0-r0, 1.1.99.2-r0

Timeline

Oct 10, 2023 CVE Published
Dec 3, 2025 CVE Updated
Apr 30, 2026 Distribution Patch

References

https://security.alpinelinux.org/vuln/CVE-2023-43787 advisory

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