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OpenBSD 7.2 ip_srcroute() Overflow

Posted by deepcore on March 8, 2023 – 8:44 am

OpenBSD version 7.2 suffers from an overflow vulnerability. ip_dooptions() will allow IPOPT_SSRR with optlen = 2. save_rte() will set isr_nhops to very large value, which will cause an overflow in the next ip_srcroute() call.


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