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CVE-2026-4897

Опубликовано: 26 мар. 2026
Источник: redhat
CVSS3: 5.5
EPSS Низкий

Описание

A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the polkit-agent-helper-1 setuid binary via standard input (stdin). This unbounded input can lead to an out-of-memory (OOM) condition, resulting in a Denial of Service (DoS) for the system.

Отчет

A moderate severity issue, a denial of service flaw exists in polkit where a local attacker can exhaust system memory. This vulnerability arises from the polkit-agent-helper-1 setuid binary processing excessively long input via standard input without size limitations, leading to an out-of-memory condition.

Меры по смягчению последствий

Mitigation for this issue is either not available or the currently available options do not 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 10polkitAffected
Red Hat Enterprise Linux 6polkitFix deferred
Red Hat Enterprise Linux 7polkitFix deferred
Red Hat Enterprise Linux 8polkitFix deferred
Red Hat Enterprise Linux 9polkitAffected
Red Hat OpenShift Container Platform 4rhcosFix deferred

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-770
https://bugzilla.redhat.com/show_bug.cgi?id=2451739polkit: Polkit: Denial of Service via unbounded input processing through standard input

EPSS

Процентиль: 3%
0.00014
Низкий

5.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.5
ubuntu
13 дней назад

A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the `polkit-agent-helper-1` setuid binary via standard input (stdin). This unbounded input can lead to an out-of-memory (OOM) condition, resulting in a Denial of Service (DoS) for the system.

CVSS3: 5.5
nvd
13 дней назад

A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the `polkit-agent-helper-1` setuid binary via standard input (stdin). This unbounded input can lead to an out-of-memory (OOM) condition, resulting in a Denial of Service (DoS) for the system.

msrc
7 дней назад

Polkit: polkit: denial of service via unbounded input processing through standard input

CVSS3: 5.5
debian
13 дней назад

A flaw was found in polkit. A local user can exploit this by providing ...

CVSS3: 5.5
github
13 дней назад

A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the `polkit-agent-helper-1` setuid binary via standard input (stdin). This unbounded input can lead to an out-of-memory (OOM) condition, resulting in a Denial of Service (DoS) for the system.

EPSS

Процентиль: 3%
0.00014
Низкий

5.5 Medium

CVSS3