CVE-2020-17498 Use after free in n/a

What is CVE-2020-17498?

CVE-2020-17498 is a medium-severity use after free vulnerability in Fedoraproject Fedora, published on 13 Aug 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-415

Which versions are affected by CVE-2020-17498?

It affects 4 products.

Products include Fedoraproject Fedora, Opensuse Leap, Oracle Zfs Storage Appliance Kit, Wireshark Wireshark.

How do I fix CVE-2020-17498?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2020-17498 being exploited?

There is no known exploitation of CVE-2020-17498 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-17498, GHSA-948p-p2c6-64q4, UBUNTU-CVE-2020-17498.