CVE-2024-9781
Description
A flaw was found in the AppleTalk and RELOAD Framing dissectors of Wireshark. This issue occurs when decoding malformed packets from a pcap file or from the network, causing an invalid read memory access and a denial of service.
Statement
This vulnerability will cause a crash in Wireshark with no other security impact. For this reason, this flaw has been rated with a moderate severity.
Additionally, Wireshark as shipped in Red Hat Enterprise Linux 8 and 9 is not affected by this vulnerability.
Mitigation
If the AppleTalk and RELOAD Framing protocol dissectors are not being used, they can be disabled via the "Enabled Protocols" dialog box in the Wireshark GUI application. This will also disable the protocol dissectors when using "tshark", the command line tool.
See the links below for instructions to disable a protocol in Wireshark, specifically the "Control Protocol Dissection" section and the "disabled_protos" configuration file option.
https://www.wireshark.org/docs/wsug_html_chunked/ChCustProtocolDissectionSection.html
https://www.wireshark.org/docs/wsug_html_chunked/ChAppFilesConfigurationSection.html
Common Vulnerability Scoring System (CVSS) Score Details
Info alert: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).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 6.5 | N/A | N/A |
| Attack Vector | Network | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | None | N/A | N/A |
| User Interaction | Required | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | None | N/A | N/A |
| Integrity Impact | None | N/A | N/A |
| Availability Impact | High | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Understanding the Weakness (CWE)
Integrity
Technical Impact: Unexpected State
Frequently Asked Questions
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