# CVE-2020-17498: libwireshark13: In Wireshark 3.2.0 to 3.2.5, the Kafka protocol dissector could crash

CVE-2020-17498 is fixed in 9 products on 1 platform, first by libwireshark-data 3.2.3-1ubuntu0.1~esm1, released October 6, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-17498
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0258
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 13, 2020

## Description

In Wireshark 3.2.0 to 3.2.5, the Kafka protocol dissector could crash. This was addressed in epan/dissectors/packet-kafka.c by avoiding a double free during LZ4 decompression.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libwireshark-data Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | [libwireshark-data 3.2.3-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libwireshark-data-3.2.3-1ubuntu0.1-esm1.md) | Oct 6, 2020 |
| Linux | libwireshark13 Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | [libwireshark13 3.2.3-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libwireshark13-3.2.3-1ubuntu0.1-esm1.md) | Oct 6, 2020 |
| Linux | libwiretap10 Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | [libwiretap10 3.2.3-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libwiretap10-3.2.3-1ubuntu0.1-esm1.md) | Oct 6, 2020 |
| Linux | libwsutil11 Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | [libwsutil11 3.2.3-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libwsutil11-3.2.3-1ubuntu0.1-esm1.md) | Oct 6, 2020 |
| Linux | tshark Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | [tshark 3.2.3-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-tshark-3.2.3-1ubuntu0.1-esm1.md) | Oct 6, 2020 |
| Linux | wireshark Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | [wireshark 3.2.3-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-wireshark-3.2.3-1ubuntu0.1-esm1.md) | Oct 6, 2020 |
| Linux | wireshark-common Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | [wireshark-common 3.2.3-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-wireshark-common-3.2.3-1ubuntu0.1-esm1.md) | Oct 6, 2020 |
| Linux | wireshark-gtk Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | [wireshark-gtk 3.2.3-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-wireshark-gtk-3.2.3-1ubuntu0.1-esm1.md) | Oct 6, 2020 |
| Linux | wireshark-qt Ubuntu 20.04 LTS (focal) | 3.2.3-1ubuntu0.1~esm1 | [wireshark-qt 3.2.3-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-wireshark-qt-3.2.3-1ubuntu0.1-esm1.md) | Oct 6, 2020 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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