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CVE-2026-43384

Опубликовано: 08 мая 2026
Источник: redhat
EPSS Низкий

Описание

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.

A flaw was found in the Linux kernel's TCP Authentication Option (TCP-AO) implementation. This vulnerability arises from a non-constant-time comparison of Message Authentication Codes (MACs). A remote attacker could potentially exploit this timing discrepancy to perform a timing attack, which may lead to the disclosure of sensitive information.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelNot affected
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-rtNot affected
Red Hat Enterprise Linux 8kernelNot affected
Red Hat Enterprise Linux 8kernel-rtNot affected
Red Hat Enterprise Linux 9kernelNot affected
Red Hat Enterprise Linux 9kernel-rtNot affected

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Дополнительная информация

Дефект:
CWE-208
https://bugzilla.redhat.com/show_bug.cgi?id=2468142kernel: net/tcp-ao: Fix MAC comparison to be constant-time

EPSS

Процентиль: 37%
0.00457
Низкий

Связанные уязвимости

CVSS3: 9.8
ubuntu
3 месяца назад

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.

CVSS3: 9.8
nvd
3 месяца назад

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.

CVSS3: 9.8
debian
3 месяца назад

In the Linux kernel, the following vulnerability has been resolved: n ...

CVSS3: 9.8
github
3 месяца назад

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.

suse-cvrf
19 дней назад

Security update for the Linux Kernel

EPSS

Процентиль: 37%
0.00457
Низкий