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CVE-2022-40302

Status Candidate

Overview

An issue was discovered in bgpd in FRRouting (FRR) through 8.4. By crafting a BGP OPEN message with an option of type 0xff (Extended Length from RFC 9072), attackers may cause a denial of service (assertion failure and daemon restart, or out-of-bounds read). This is possible because of inconsistent boundary checks that do not account for reading 3 bytes (instead of 2) in this 0xff case.

Related Files

Debian Security Advisory 5495-1
Posted Sep 11, 2023
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5495-1 - Multiple vulnerabilities were discovered in frr, the FRRouting suite of internet protocols, while processing malformed requests and packets the BGP daemon may have reachable assertions, NULL pointer dereference, out-of-bounds memory access, which may lead to denial of service attack.

tags | advisory, denial of service, vulnerability, protocol
systems | linux, debian
advisories | CVE-2022-36440, CVE-2022-40302, CVE-2022-40318, CVE-2022-43681, CVE-2023-31490, CVE-2023-38802, CVE-2023-41358
SHA-256 | d06548bf0cf528ba563ac32c8ca312f486ccd0a61d69e2f799300dc7e15d96e7
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