CVE-2009-4377

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Last Modified: UTC

Description

The CVE Program describes this issue as:

The (1) SMB and (2) SMB2 dissectors in Wireshark 0.9.0 through 1.2.4 allow remote attackers to cause a denial of service (crash) via a crafted packet that triggers a NULL pointer dereference, as demonstrated by fuzz-2009-12-07-11141.pcap.

Additional information

  • Bugzilla 549578: wireshark: invalid pointer dereference in SMB/SMB2 dissectors
  • FAQ: Frequently asked questions about CVE-2009-4377

Common Vulnerability Scoring System (CVSS) Score Details

Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v2 Score Breakdown
Red HatNVD

CVSS v2 Base Score

5.4

4.3

Attack Vector

Adjacent Network

Network

Access Complexity

Medium

Medium

Authentication

None

None

Confidentiality Impact

Partial

None

Integrity Impact

Partial

None

Availability Impact

Partial

Partial

CVSS v2 Vector

Red Hat: AV:A/AC:M/Au:N/C:P/I:P/A:P

NVD: AV:N/AC:M/Au:N/C:N/I:N/A:P

Frequently Asked Questions

Why is Red Hat's CVSS v3 score or Impact different from other vendors?

My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?

What can I do if my product is listed as "Will not fix"?

What can I do if my product is listed as "Fix deferred"?

What is a mitigation?

I have a Red Hat product but it is not in the above list, is it affected?

Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?

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