Описание
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region function in drivers/video/console/vgacon.c.
A flaw was found in the Linux kernel’s implementation of the invert video code on VGA consoles when a local attacker attempts to resize the console. An out-of-bounds read can occur, leaking information to the console.
Отчет
This flaw is rated as a having Moderate impact, it is an infoleak that is written to the screen.
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 5 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 6 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 7 | kernel-alt | Will not fix | ||
| Red Hat Enterprise MRG 2 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Fixed | RHSA-2020:4062 | 29.09.2020 |
| Red Hat Enterprise Linux 7 | kernel | Fixed | RHSA-2020:4060 | 29.09.2020 |
| Red Hat Enterprise Linux 8 | kernel-rt | Fixed | RHSA-2020:4609 | 04.11.2020 |
| Red Hat Enterprise Linux 8 | kernel | Fixed | RHSA-2020:4431 | 04.11.2020 |
| Red Hat Enterprise Linux 8.2 Extended Update Support | kernel-rt | Fixed | RHSA-2022:1209 | 05.04.2022 |
| Red Hat Enterprise Linux 8.2 Extended Update Support | kernel | Fixed | RHSA-2022:1213 | 05.04.2022 |
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Дополнительная информация
Статус:
EPSS
5.9 Medium
CVSS3
Связанные уязвимости
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region function in drivers/video/console/vgacon.c.
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region function in drivers/video/console/vgacon.c.
There is a use-after-free vulnerability in the Linux kernel through 5. ...
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region function in drivers/video/console/vgacon.c.
EPSS
5.9 Medium
CVSS3