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CVE-2024-47678: Linux

9.4

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.

  • Експлоатация: няма данни за експлоатация
  • Атаката не може да се автоматизира

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: icmp: change the order of rate limits ICMP messages are ratelimited : After the blamed commits, the two rate limiters are applied in this order: 1) host wide ratelimit (icmp_global_allow()) 2) Per destination ratelimit (inetpeer based) In order to avoid side-channels attacks, we need to apply the per destination check first. This patch makes the following change : 1) icmp_global_allow() checks if the host wide limit is reached. But credits are not yet consumed. This is deferred to 3) 2) The per destination limit is checked/updated. This might add a new node in inetpeer tree. 3) icmp_global_consume() consumes tokens if prior operations succeeded. This means that host wide ratelimit is still effective in keeping inetpeer tree small even under DDOS. As a bonus, I removed icmp_global.lock as the fast path can use a lock-free operation.

Засегнати продукти

  • Linux Linux: 4cdf507d54525842dfd9f6313fdafba039084046 преди 997ba8889611891f91e8ad83583466aeab6239a3; 4cdf507d54525842dfd9f6313fdafba039084046 преди 662ec52260cc07b9ae53ecd3925183c29d34288b; 4cdf507d54525842dfd9f6313fdafba039084046 преди a7722921adb046e3836eb84372241f32584bdb07; 4cdf507d54525842dfd9f6313fdafba039084046 преди 483397b4ba280813e4a9c161a0a85172ddb43d19; 4cdf507d54525842dfd9f6313fdafba039084046 преди 8c2bd38b95f75f3d2a08c93e35303e26d480d24e
  • Linux Linux: 3.18; преди 3.18; 6.1.113 до 6.1.*; 6.6.54 до 6.6.*; 6.10.13 до 6.10.*; 6.11.2 до 6.11.*; 6.12 до *

История

  • 21 октомври 2024 Публикувано

Други уязвимости в Linux Linux

Първоизточници

CVE-2024-47678: Linux | freedomonline.bg