# CVE-2018-16301: tcpdump: The command-line argument parser in tcpdump before 4.99.0 has a buffer overflow in tcpdump.c:read_infile()

CVE-2018-16301 is fixed in tcpdump on 1 platform, first by tcpdump 4.9.3-0ubuntu0.18.04.2, released November 4, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-16301
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0063
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 29, 2019

## Description

The command-line argument parser in tcpdump before 4.99.0 has a buffer overflow in tcpdump.c:read_infile(). To trigger this vulnerability the attacker needs to create a 4GB file on the local filesystem and to specify the file name as the value of the -F command-line argument of tcpdump.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | tcpdump Ubuntu 18.04.6 LTS (bionic) | 4.9.3-0ubuntu0.18.04.2 | [tcpdump 4.9.3-0ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-tcpdump-4.9.3-0ubuntu0.18.04.2.md) | Nov 4, 2020 |
| Linux | tcpdump Ubuntu 20.04 LTS (focal) | 4.9.3-4ubuntu0.1 | [tcpdump 4.9.3-4ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-tcpdump-4.9.3-4ubuntu0.1.md) | Nov 4, 2020 |

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