Описание
brace-expansion through 5.0.6 is vulnerable to denial of service. The expand() function exhibits exponential-time complexity in the number of consecutive non-expanding '{}' brace groups. An attacker who passes a crafted string to expand(), directly or transitively, can cause significant CPU consumption and event-loop blocking. The max option does not mitigate this, as it bounds the output size rather than the recursion work.
A flaw was found in brace-expansion. An attacker can exploit a vulnerability in the expand() function by providing a specially crafted string. This string, containing consecutive non-expanding brace groups, can trigger exponential-time complexity, leading to significant CPU consumption and event-loop blocking. This can result in a Denial of Service (DoS) for the affected system.
Отчет
A flaw was found in brace-expansion, a widely-used npm package for expanding brace sequences. The expand() function exhibits exponential-time complexity when processing consecutive non-expanding brace groups. An attacker who can supply crafted input to expand(), directly or transitively via minimatch or glob, can cause significant CPU consumption and event-loop blocking, resulting in denial of service. The max option does not mitigate this issue, as it bounds the output size rather than the recursion work.
Меры по смягчению последствий
There is no practical mitigation for this vulnerability. The brace-expansion package is typically a transitive dependency pulled in via minimatch and glob, making it difficult to isolate. Users should upgrade to a fixed version of brace-expansion when one becomes available.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Confidential Compute Attestation | openshift-sandboxed-containers/osc-pccs | Will not fix | ||
| Cryostat 4 | brace-expansion | Not affected | ||
| Cryostat 4 | cryostat-openshift-console-plugin-npm | Not affected | ||
| Exploit Intelligence | exploit-intelligence-tech-preview/vulnerability-analysis-rhel9 | Affected | ||
| Gatekeeper 3 | gatekeeper/gatekeeper-rhel9 | Not affected | ||
| Migration Toolkit for Applications 8 | mta/mta-ui-rhel8 | Not affected | ||
| Node HealthCheck Operator | workload-availability/node-healthcheck-must-gather-rhel9 | Affected | ||
| Node HealthCheck Operator | workload-availability/node-healthcheck-operator-bundle | Affected | ||
| Node HealthCheck Operator | workload-availability/node-healthcheck-rhel9-operator | Affected | ||
| Node HealthCheck Operator | workload-availability/node-remediation-console-rhel8 | Affected |
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Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
brace-expansion through 5.0.6 is vulnerable to denial of service. The expand() function exhibits exponential-time complexity in the number of consecutive non-expanding '{}' brace groups. An attacker who passes a crafted string to expand(), directly or transitively, can cause significant CPU consumption and event-loop blocking. The max option does not mitigate this, as it bounds the output size rather than the recursion work.
brace-expansion through 5.0.6 is vulnerable to denial of service. The expand() function exhibits exponential-time complexity in the number of consecutive non-expanding '{}' brace groups. An attacker who passes a crafted string to expand(), directly or transitively, can cause significant CPU consumption and event-loop blocking. The max option does not mitigate this, as it bounds the output size rather than the recursion work.
brace-expansion through 5.0.6 is vulnerable to denial of service. The ...
EPSS
7.5 High
CVSS3