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Vulnerability DatabaseCVE-2023-1801

CVE-2023-1801: 
NixOS vulnerability analysis and mitigation

Overview

The SMB protocol decoder in tcpdump version 4.99.3 contains a vulnerability (CVE-2023-1801) that can perform an out-of-bounds write when decoding a crafted network packet. This vulnerability was discovered in early 2023 and affects tcpdump installations prior to version 4.99.4 (Debian Tracker).

Technical details

The vulnerability exists in the SMB protocol decoder functionality of tcpdump. When processing specially crafted network packets, the decoder can perform an out-of-bounds write operation, which could lead to memory corruption. The issue was fixed in tcpdump version 4.99.4 through improved input validation (Debian Tracker).

Impact

An attacker in a privileged network position may be able to execute arbitrary code by exploiting this vulnerability through sending specially crafted network packets (Apple Security).

Mitigation and workarounds

The vulnerability has been fixed in tcpdump version 4.99.4 and later. Users are advised to upgrade to the patched version. For Debian-based systems, fixed versions are available in the sid and trixie releases. The fix was implemented through commits 7578e1c and 03c037b in the tcpdump repository (Debian Tracker).

Additional resources

Source: This report was generated using AI

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