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CVE-2026-74282: Linux

7.5

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 може да се автоматизира

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: tipc: prevent snt_unacked underflow on CONN_ACK tipc_sk_conn_proto_rcv() subtracts the peer-supplied connection ack count from the unsigned 16-bit send counter snt_unacked without checking that it does not exceed the number of messages actually outstanding: tsk->snt_unacked -= msg_conn_ack(hdr); msg_conn_ack() is read straight from a received CONN_MANAGER/CONN_ACK message. If the ack count is larger than snt_unacked, the subtraction wraps to a near-maximum value, leaving tsk_conn_cong() permanently true and starving the connection of further transmits. Validate the ACK count at the start of the CONN_ACK block and drop the message if it acknowledges more messages than are outstanding. A peer (or, for a local connection, the connected peer socket) can otherwise wedge a TIPC connection's send side by sending an oversized connection ack.

Засегнати продукти

  • Linux Linux: 10724cc7bb7832b482df049c20fd824d928c5eaa преди 3388145d258cf2c4c98278e3987296007d30672e; 10724cc7bb7832b482df049c20fd824d928c5eaa преди 67e55b054bf8025658dc0e255057f2a6236416bd; 10724cc7bb7832b482df049c20fd824d928c5eaa преди 96f91b8ae1a489b3eca137e7acf42cf985fb8939; 10724cc7bb7832b482df049c20fd824d928c5eaa преди 47ed873e4ceda34098bd46d8e96b4bb13cad3a04; 10724cc7bb7832b482df049c20fd824d928c5eaa преди b44bebdd32c9ff66ee2aebfc317ced44bedd9335; 10724cc7bb7832b482df049c20fd824d928c5eaa преди 3cfa3d8e0dc167850edeb5bf5a07757db83fd54e; 10724cc7bb7832b482df049c20fd824d928c5eaa преди 1e2c956745777e6ffdee7f30da5935741c03ee1e; 10724cc7bb7832b482df049c20fd824d928c5eaa преди ab3e10b44ba5411779aac7afd2477917dd77750f
  • Linux Linux: 4.7; преди 4.7; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък

История

  • 15 август 2026 Публикувано

Други уязвимости в Linux Linux

Първоизточници

CVE-2026-74282: Linux | freedomonline.bg