CVE-2020-25866 Null dereference in n/a

What is CVE-2020-25866?

CVE-2020-25866 is a high-severity vulnerability in Fedoraproject Fedora, published on 6 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Wireshark 3.2.0 to 3.2.6 and 3.0.0 to 3.0.13, the BLIP protocol dissector has a NULL pointer dereference because a buffer was sized for compressed (not uncompressed) messages. This was addressed in epan/dissectors/packet-blip.c by allowing reasonable compression ratios and rejecting ZIP bombs.

Weakness: CWE-476

Which versions are affected by CVE-2020-25866?

It affects 4 products.

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

How do I fix CVE-2020-25866?

Upgrade to a fixed version.

Is CVE-2020-25866 being exploited?

There is no known exploitation of CVE-2020-25866 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-2020-25866, GHSA-j5p6-gc45-8fh8, UBUNTU-CVE-2020-25866.