CVSS 4.0
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, `xf_Pointer_New` frees `cursorPixels` on failure, then `pointer_free` calls `xf_Pointer_Free` and frees it again, triggering ASan UAF. A malicious server can trigger a client‑side use after free, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout. Version 3.21.0 contains a patch for the issue.
Засегнати продукти
- FreeRDP FreeRDP: < 3.21.0
Red Hat: още 10 продукта, добавени от Red Hat
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7
Вид слабост
История
- 19 януари 2026 Публикувано
Други уязвимости в FreeRDP FreeRDP
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-23883
- https://nvd.nist.gov/vuln/detail/CVE-2026-23883
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qcrr-85qx-4p6x
- https://github.com/FreeRDP/FreeRDP/blob/3370e30e92a021eb680892dda14d642bc8b8727c/client/X11/xf_graphics.c#L312-L319
- https://github.com/FreeRDP/FreeRDP/blob/3370e30e92a021eb680892dda14d642bc8b8727c/client/X11/xf_graphics.c#L340
- https://github.com/FreeRDP/FreeRDP/blob/3370e30e92a021eb680892dda14d642bc8b8727c/libfreerdp/cache/pointer.c#L164-L174
- https://github.com/FreeRDP/FreeRDP/releases/tag/3.21.0
- https://access.redhat.com/security/cve/CVE-2026-23883
- https://bugzilla.redhat.com/show_bug.cgi?id=2430885
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23883.json
- https://access.redhat.com/errata/RHSA-2026:2952
- https://access.redhat.com/errata/RHSA-2026:2222
- https://access.redhat.com/errata/RHSA-2026:2081
- https://access.redhat.com/errata/RHSA-2026:2770
- https://access.redhat.com/errata/RHSA-2026:2824
- https://access.redhat.com/errata/RHSA-2026:2736
- https://access.redhat.com/errata/RHSA-2026:3037
- https://access.redhat.com/errata/RHSA-2026:2048