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: ipvs: use parsed transport offset in SCTP state lookup set_sctp_state() reads the SCTP chunk header again in order to drive the IPVS SCTP state table. For IPv6 it computes the offset with sizeof(struct ipv6hdr), while the surrounding IPVS code uses iph.len from ip_vs_fill_iph_skb(), where ipv6_find_hdr() has already skipped extension headers and found the real transport header. This makes the state machine read from the wrong offset for IPv6 SCTP packets that carry extension headers. For example, an INIT packet with an 8-byte destination options header can be scheduled correctly by sctp_conn_schedule(), but set_sctp_state() reads the first byte of the SCTP verification tag as a DATA chunk type. The connection then moves from NONE to ESTABLISHED instead of INIT1, gets the longer established timeout, and updates the active/inactive destination counters incorrectly. This happens even though the SCTP handshake has not completed. Use the parsed transport offset passed down from ip_vs_set_state() for the SCTP chunk-header lookup. For IPv4 and IPv6 packets without extension headers this preserves the existing offset.
Засегнати продукти
- Linux Linux: 2906f66a5682e5670a5eefe991843689b8d8563f преди d2b8b1557ec07ea1bb5dddbceaf4dfe63d388e27; 2906f66a5682e5670a5eefe991843689b8d8563f преди 9f94573ab962a9e81954b755da016fa3cd2f5039; 2906f66a5682e5670a5eefe991843689b8d8563f преди 290e9e8389b556efc603522e28bd1543846aa336; 2906f66a5682e5670a5eefe991843689b8d8563f преди 9cb5ac594ca76d3a71803b23b74c835b0721e628; 2906f66a5682e5670a5eefe991843689b8d8563f преди a4a2d2e483d79cc2ad3a170674cf159644acf22b; 2906f66a5682e5670a5eefe991843689b8d8563f преди 247d055504dcc852e539b9f7f30d19f9741474bf; 2906f66a5682e5670a5eefe991843689b8d8563f преди e5d0bb8871668f20de8f3c94b5ae3f372346bc6e; 2906f66a5682e5670a5eefe991843689b8d8563f преди 2f75c0faa3361b28e36cc0512b3299e163e25789
- Linux Linux: 2.6.34; преди 2.6.34; 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
Вид слабост
История
- 15 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-72021
- https://nvd.nist.gov/vuln/detail/CVE-2026-72021
- https://git.kernel.org/stable/c/d2b8b1557ec07ea1bb5dddbceaf4dfe63d388e27
- https://git.kernel.org/stable/c/9f94573ab962a9e81954b755da016fa3cd2f5039
- https://git.kernel.org/stable/c/290e9e8389b556efc603522e28bd1543846aa336
- https://git.kernel.org/stable/c/9cb5ac594ca76d3a71803b23b74c835b0721e628
- https://git.kernel.org/stable/c/a4a2d2e483d79cc2ad3a170674cf159644acf22b
- https://git.kernel.org/stable/c/247d055504dcc852e539b9f7f30d19f9741474bf
- https://git.kernel.org/stable/c/e5d0bb8871668f20de8f3c94b5ae3f372346bc6e
- https://git.kernel.org/stable/c/2f75c0faa3361b28e36cc0512b3299e163e25789