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CVE-2021-20321

Опубликовано: 11 окт. 2021
Источник: redhat
CVSS3: 5.5

Описание

A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS. A local user could use this flaw to crash the system.

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

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 5kernelNot affected
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernelOut of support scope
Red Hat Enterprise Linux 7kernel-rtOut of support scope
Red Hat Enterprise Linux 9kernelNot affected
Red Hat Enterprise Linux 8kernel-rtFixedRHSA-2021:524121.12.2021
Red Hat Enterprise Linux 8kernelFixedRHSA-2021:522721.12.2021

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-362
https://bugzilla.redhat.com/show_bug.cgi?id=2013242kernel: In Overlayfs missing a check for a negative dentry before calling vfs_rename()

5.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 4.7
ubuntu
больше 3 лет назад

A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS. A local user could use this flaw to crash the system.

CVSS3: 4.7
nvd
больше 3 лет назад

A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS. A local user could use this flaw to crash the system.

CVSS3: 4.7
msrc
больше 3 лет назад

Описание отсутствует

CVSS3: 4.7
debian
больше 3 лет назад

A race condition accessing file object in the Linux kernel OverlayFS s ...

oracle-oval
больше 3 лет назад

ELSA-2021-5227: kernel security and bug fix update (MODERATE)

5.5 Medium

CVSS3