ALPINE-CVE-2026-33984
- Source
- https://security.alpinelinux.org/vuln/CVE-2026-33984
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-33984.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-33984
- Upstream
- Published
- 2026-03-30T22:16:19Z
- Modified
- 2026-11-03T06:32:54Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, in resize_vbar_entry() in libfreerdp/codec/clear.c, vBarEntry->size is updated to vBarEntry->count before the winpr_aligned_recalloc() call. If realloc fails, size is inflated while pixels still points to the old, smaller buffer. On a subsequent call where count <= size (the inflated value), realloc is skipped. The caller then writes count * bpp bytes of attacker-controlled pixel data into the undersized buffer, causing a heap buffer overflow. This issue has been patched in version 3.24.2.
- References
Affected packages
Alpine:v3.23 / freerdp
Package
- Name
- freerdp
- Purl
- pkg:apk/alpine/freerdp?arch=source