# CVE-2018-17582: tcpreplay: Tcpreplay v4.3.0 beta1 contains a heap-based buffer over-read

CVE-2018-17582 is fixed in tcpreplay on 1 platform by tcpreplay 4.2.6-1ubuntu0.1~esm1 (version 4.2.6-1ubuntu0.1~esm1), released October 16, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-17582
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0121
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 28, 2018

## Description

Tcpreplay v4.3.0 beta1 contains a heap-based buffer over-read. The get_next_packet() function in the send_packets.c file uses the memcpy() function unsafely to copy sequences from the source buffer pktdata to the destination (*prev_packet)->pktdata. This will result in a Denial of Service (DoS) and potentially Information Exposure when the application attempts to process a file.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | tcpreplay Ubuntu 18.04.6 LTS (bionic) | 4.2.6-1ubuntu0.1~esm1 | [tcpreplay 4.2.6-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-tcpreplay-4.2.6-1ubuntu0.1-esm1.md) | Oct 16, 2018 |

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