CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
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: sctp: auth: verify auth requirement when auth_chunk is NULL sctp_auth_chunk_verify() returns true unconditionally when chunk->auth_chunk is NULL, silently skipping authentication. This is incorrect when: 1. skb_clone() failed in the BH receive path, leaving auth_chunk NULL. In sctp_endpoint_bh_rcv() asoc is NULL for new connections, so the early sctp_auth_recv_cid() check cannot catch this. 2. No AUTH chunk precedes COOKIE-ECHO, so skb_clone() is never called and auth_chunk remains NULL. Fix by checking sctp_auth_recv_cid() when auth_chunk is NULL: if authentication is required, return false to drop the chunk; otherwise continue normally.
Засегнати продукти
- Linux Linux: bbd0d59809f923ea2b540cbd781b32110e249f6e преди a129792b3aef15002746c13522781d92ed3522c3; bbd0d59809f923ea2b540cbd781b32110e249f6e преди 5a022ac51ad83b4ce6c898f4b9eefc65bd26b247; bbd0d59809f923ea2b540cbd781b32110e249f6e преди 6caf0e8590c0bf05a76b0d387726adf3a6f3725c; bbd0d59809f923ea2b540cbd781b32110e249f6e преди ec2e157fc9678a9bc411305a25aec3fd337d7efb; bbd0d59809f923ea2b540cbd781b32110e249f6e преди 28c5fdce9dd955d2baf5e28987819b6d7cfaf646; bbd0d59809f923ea2b540cbd781b32110e249f6e преди 18957373920caf5cdaf5cf32e5d1d7a99ca7700a; bbd0d59809f923ea2b540cbd781b32110e249f6e преди 83f5031f2a6a49d696eb4cc0898345d12f9c6451; bbd0d59809f923ea2b540cbd781b32110e249f6e преди 8e04823c120b376ef7dab14b60ebf6823aa16c14
- Linux Linux: 2.6.24; преди 2.6.24; 5.10.265 до 5.10.*; 5.15.216 до 5.15.*; 6.1.183 до 6.1.*; 6.6.148 до 6.6.*; 6.12.101 до 6.12.*; 6.18.42 до 6.18.*; 7.1.6 до 7.1.*; от 7.2 нататък
Вид слабост
История
- 10 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-68300
- https://nvd.nist.gov/vuln/detail/CVE-2026-68300
- https://git.kernel.org/stable/c/a129792b3aef15002746c13522781d92ed3522c3
- https://git.kernel.org/stable/c/5a022ac51ad83b4ce6c898f4b9eefc65bd26b247
- https://git.kernel.org/stable/c/6caf0e8590c0bf05a76b0d387726adf3a6f3725c
- https://git.kernel.org/stable/c/ec2e157fc9678a9bc411305a25aec3fd337d7efb
- https://git.kernel.org/stable/c/28c5fdce9dd955d2baf5e28987819b6d7cfaf646
- https://git.kernel.org/stable/c/18957373920caf5cdaf5cf32e5d1d7a99ca7700a
- https://git.kernel.org/stable/c/83f5031f2a6a49d696eb4cc0898345d12f9c6451
- https://git.kernel.org/stable/c/8e04823c120b376ef7dab14b60ebf6823aa16c14