Описание
A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.
Отчет
Xorg server does not run with root privileges in Red Hat Enterprise Linux 8 and 9, therefore, Red Hat Enterprise Linux 8 and 9 have been rated with a Moderate severity and are not affected by this bug.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | tigervnc | Affected | ||
| Red Hat Enterprise Linux 6 | xorg-x11-server | Out of support scope | ||
| Red Hat Enterprise Linux 8 | xorg-x11-server | Not affected | ||
| Red Hat Enterprise Linux 8 | xorg-x11-server-Xwayland | Not affected | ||
| Red Hat Enterprise Linux 10 | xorg-x11-server-Xwayland | Fixed | RHSA-2025:7458 | 13.05.2025 |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | tigervnc | Fixed | RHSA-2025:2861 | 17.03.2025 |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | xorg-x11-server | Fixed | RHSA-2025:2879 | 17.03.2025 |
| Red Hat Enterprise Linux 8 | tigervnc | Fixed | RHSA-2025:2502 | 10.03.2025 |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | tigervnc | Fixed | RHSA-2025:2866 | 17.03.2025 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | tigervnc | Fixed | RHSA-2025:2865 | 17.03.2025 |
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Дополнительная информация
Статус:
EPSS
7.8 High
CVSS3
Связанные уязвимости
A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.
A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.
A buffer overflow flaw was found in X.Org and Xwayland. The code in Xk ...
EPSS
7.8 High
CVSS3