Frr
Monthly
FRRouting before version 10.5.3 contains an integer overflow vulnerability in OSPF Traffic Engineering and Segment Routing TLV parser functions that allows attackers with an established OSPF adjacency to send a malicious Type 10 or Type 11 Opaque LSA and trigger out-of-bounds memory reads, crashing all affected routers in the OSPF area. The vulnerability results from a uint16_t accumulator variable truncating uint32_t values returned by the TLV_SIZE() macro, causing the loop termination condition to fail while pointer advancement continues unchecked. This is a denial-of-service attack requiring OSPF neighbor status but no user interaction or additional privileges.
Remote improper access control in FRRouting FRR up to version 10.5.1 allows authenticated remote attackers to bypass authorization checks in the EVPN Type-2 Route Handler (process_type2_route function), potentially leading to integrity and availability impacts. The vulnerability requires high attack complexity and authenticated access (PR:L), limiting immediate exploitation risk. An upstream fix (commit 7676cad65114aa23adde583d91d9d29e2debd045) is available; no public exploit code or active CISA KEV designation identified at time of analysis.
FRRouting before version 10.5.3 contains an integer overflow vulnerability in OSPF Traffic Engineering and Segment Routing TLV parser functions that allows attackers with an established OSPF adjacency to send a malicious Type 10 or Type 11 Opaque LSA and trigger out-of-bounds memory reads, crashing all affected routers in the OSPF area. The vulnerability results from a uint16_t accumulator variable truncating uint32_t values returned by the TLV_SIZE() macro, causing the loop termination condition to fail while pointer advancement continues unchecked. This is a denial-of-service attack requiring OSPF neighbor status but no user interaction or additional privileges.
Remote improper access control in FRRouting FRR up to version 10.5.1 allows authenticated remote attackers to bypass authorization checks in the EVPN Type-2 Route Handler (process_type2_route function), potentially leading to integrity and availability impacts. The vulnerability requires high attack complexity and authenticated access (PR:L), limiting immediate exploitation risk. An upstream fix (commit 7676cad65114aa23adde583d91d9d29e2debd045) is available; no public exploit code or active CISA KEV designation identified at time of analysis.