Wiz
Vulnerability DatabaseCVE-2023-2854

CVE-2023-2854: 
Wireshark vulnerability analysis and mitigation

Overview

CVE-2023-2854 affects Wireshark versions 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13, involving a BLF (Binary Logging Format) file parser crash that allows denial of service via a crafted capture file (NVD, Wireshark Advisory).

Technical details

The vulnerability exists in the blfreadapptextmessage function within the blf.c file, which is used by the Wireshark BLF plugin. The issue occurs when the gstrsplitset function is called with specific text parameters, leading to a heap buffer overflow. The vulnerability has been assigned a CVSS v3.1 base score of 6.5 MEDIUM (Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H) (NVD, Wireshark Issue).

Impact

When exploited, this vulnerability can cause Wireshark to crash, resulting in a denial of service condition. The impact occurs when processing malformed packet trace files or when malformed packets are injected into the network (Wireshark Advisory).

Mitigation and workarounds

Users are advised to upgrade to Wireshark version 4.0.6 or later, which contains the fix for this vulnerability. Multiple distributions have released security updates, including Debian (version 4.0.6-1~deb12u1) and Gentoo (version 4.0.6) (Debian Advisory, Gentoo Advisory).

Additional resources

Source: This report was generated using AI

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Additional Wiz resources

Cloud Vulnerability DB

Cloud Vulnerability DB

An open project to list all known cloud vulnerabilities and Cloud Service Provider security issues

Cloud threat landscape

Cloud threat landscape

A comprehensive threat intelligence database of cloud security incidents, actors, tools and techniques

PEACH

PEACH

A step-by-step framework for modeling and improving SaaS and PaaS tenant isolation

Get a personalized demo

Ready to see Wiz in action?

“Best User Experience I have ever seen, provides full visibility to cloud workloads.”
David EstlickCISO
“Wiz provides a single pane of glass to see what is going on in our cloud environments.”
Adam FletcherChief Security Officer
“We know that if Wiz identifies something as critical, it actually is.”
Greg PoniatowskiHead of Threat and Vulnerability Management
Get a demo