CVE-2022-27418
NixOS vulnerability analysis and mitigation

Overview

Tcpreplay version 4.4.1 contains a heap-based buffer overflow vulnerability in the do_checksum_math function located at /tcpedit/checksum.c. The vulnerability was discovered in early 2022 and affects the packet editing functionality of the software (GitHub Issue).

Technical details

The vulnerability is a heap-based buffer overflow that occurs during packet checksum calculation in the do_checksum_math function. When triggered, it causes a READ operation of size 2 at an unauthorized memory location. The issue was identified using AddressSanitizer and occurs specifically when processing packet checksums (GitHub Issue).

Impact

The vulnerability could potentially lead to denial of service conditions when processing malformed network traffic (Gentoo Advisory).

Mitigation and workarounds

Users should upgrade to Tcpreplay version 4.4.2 or later which contains fixes for this vulnerability. For Gentoo users, the recommended mitigation is to execute 'emerge --ask --oneshot --verbose ">=net-analyzer/tcpreplay-4.4.2"' (Gentoo Advisory).

Additional resources


SourceThis report was generated using AI

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