4.8
CVSS 4.0
Няма данни
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Няма потвърждение
Атакува се
Няма данни
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
Описание
Оригинално описание
wlroots before 0.20.2 contains an out-of-bounds read vulnerability in read_surface_class() in xwayland/xwm.c that allows local X11 clients to leak compositor heap memory. Attackers can set a WM_CLASS property with a NUL-terminated instance but unterminated class, exposing over-read heap bytes as the window class or app_id over IPC.
Засегнати продукти
- wlroots wlroots: преди 0.20.2
Вид слабост
История
- 3 ноември 2026 Публикувано
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-121604
- https://nvd.nist.gov/vuln/detail/CVE-2026-121604
- https://gitlab.freedesktop.org/wlroots/wlroots/-/work_items/4092
- https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/5374
- https://gitlab.freedesktop.org/wlroots/wlroots/-/commit/851cdd0089004884bd85a95ad21f04009cb5a53a
- https://gitlab.freedesktop.org/wlroots/wlroots/-/commit/4412992469540b1d578cb94a5cd4e6e5829812dc
- https://gitlab.freedesktop.org/wlroots/wlroots/-/releases/0.20.2
- https://gitlab.freedesktop.org/wlroots/wlroots/-/blob/0.20.1/xwayland/xwm.c#L661-L678
- https://www.vulncheck.com/advisories/wlroots-before-0.20.2-out-of-bounds-read-via-read-surface-class-in-xwm-c