FreeRDP: ClearCodec resize_vbar_entry() Heap OOB Write
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 0.4%
probabilidad de explotación
0.4%top 66% de las CVE
explotación observada
noninguna fuente lo reporta
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Productos afectados
FreeRDP · FreeRDPReferencias
https://access.redhat.com/errata/RHSA-2026:10709https://access.redhat.com/errata/RHSA-2026:11332https://access.redhat.com/errata/RHSA-2026:11333https://access.redhat.com/errata/RHSA-2026:11336https://access.redhat.com/errata/RHSA-2026:11649https://access.redhat.com/errata/RHSA-2026:11651https://access.redhat.com/errata/RHSA-2026:12359https://access.redhat.com/errata/RHSA-2026:12388https://access.redhat.com/errata/RHSA-2026:19033https://access.redhat.com/errata/RHSA-2026:19349https://access.redhat.com/errata/RHSA-2026:8457https://access.redhat.com/errata/RHSA-2026:8458