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CVE-2022-43681

Status Candidate

Overview

An out-of-bounds read exists in the BGP daemon of FRRouting FRR through 8.4. When sending a malformed BGP OPEN message that ends with the option length octet (or the option length word, in case of an extended OPEN message), the FRR code reads of out of the bounds of the packet, throwing a SIGABRT signal and exiting. This results in a bgpd daemon restart, causing a Denial-of-Service condition.

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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