Към съдържанието
Търсене

CVE-2026-98490: Linux

9.8

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.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: conntrack: fix helper UAF due to extensions realloc While calling the helpers, a raw pointer to the extensions area is wired into expectations list: -> nf_ct_helper() -> helper->help() -> nf_ct_expect_related_report() -> nf_ct_expect_insert() -> hlist_add_head_rcu(&exp->lnode, &master_help->expectations) In case the connection is not confirmed yet, more extensions can be added afterwards with *_ext_add() calls reallocating the extension space and leaving the now invalid pointer in the expectations list that is later accessed while removing the expectation. Make sure that helpers are called at the end after all the other extensions are already added. Note that the helper rejection now leaves the mark and labels set, but that's not different from how the NAT was handled before or how the mark and the labels were handled on confirmation failure. And there are no atomicity guarantees provided by the API anyway.

    Засегнати продукти

    • Linux Linux: cae3a2627520c3795b54533c5328b77af3405dbe преди f53d13a286fb275bda0efdf445b8a1e4dfcb717b; cae3a2627520c3795b54533c5328b77af3405dbe преди 84d47a83b7b717576de0defab46b8823a22853b0; cae3a2627520c3795b54533c5328b77af3405dbe преди 9f308197395c1a524b736e401cbc8a2ed7d246c9; cae3a2627520c3795b54533c5328b77af3405dbe преди 18866dc1f525f9ee4de7709529d1ae1af8d8e8be; cae3a2627520c3795b54533c5328b77af3405dbe преди afcf362625190c5260530b1d6c7daa98831f6b83; cae3a2627520c3795b54533c5328b77af3405dbe преди 5f23080a625dd7855ab91485c8d691a54a1979f0; cae3a2627520c3795b54533c5328b77af3405dbe преди e02a83bb0b7a203f6a22f55ad5f426765560f811; cae3a2627520c3795b54533c5328b77af3405dbe преди 1a4151e6be57b098b7a5ebfbde58585e83200cdc
    • Linux Linux: 4.3; преди 4.3; 5.10.273 до 5.10.*; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.112 до 6.12.*; 6.18.55 до 6.18.*; 7.2.9 до 7.2.*; от 7.3 нататък

    История

    • 18 октомври 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98490: Linux | freedomonline.bg