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CVE-2020-25656

Опубликовано: 16 окт. 2020
Источник: redhat
CVSS3: 4.1
EPSS Низкий

Описание

A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.

Отчет

This issue is rated as having Moderate impact because of the attack scenario limitation where only local user with access to VT console if at least CAP_SYS_TTY_CONFIG enabled can trigger this issue.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 5kernelNot affected
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernel-altWill not fix
Red Hat Enterprise MRG 2kernelOut of support scope
Red Hat Enterprise Linux 7kernel-rtFixedRHSA-2021:085716.03.2021
Red Hat Enterprise Linux 7kernelFixedRHSA-2021:085616.03.2021
Red Hat Enterprise Linux 8kernel-rtFixedRHSA-2024:295022.05.2024
Red Hat Enterprise Linux 8kernelFixedRHSA-2024:313822.05.2024

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-416
https://bugzilla.redhat.com/show_bug.cgi?id=1888726kernel: use-after-free in read in vt_do_kdgkb_ioctl

EPSS

Процентиль: 1%
0.00011
Низкий

4.1 Medium

CVSS3

Связанные уязвимости

CVSS3: 4.1
ubuntu
больше 4 лет назад

A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.

CVSS3: 4.1
nvd
больше 4 лет назад

A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.

CVSS3: 4.1
msrc
больше 4 лет назад

Описание отсутствует

CVSS3: 4.1
debian
больше 4 лет назад

A flaw was found in the Linux kernel. A use-after-free was found in th ...

CVSS3: 4.1
github
около 3 лет назад

A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.

EPSS

Процентиль: 1%
0.00011
Низкий

4.1 Medium

CVSS3