CVE-2015-6246

Description

From CVE.org

The dissect_wa_payload function in epan/dissectors/packet-waveagent.c in the WaveAgent dissector in Wireshark 1.12.x before 1.12.7 mishandles large tag values, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Statement

This issue did not affect the version of wireshark as shipped with Red Hat Enterprise Linux 5. This issue affects the verison of wireshark as shipped with Red Hat Enterprise Linux 6. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates of Red Hat Enterprise Linux 6.

Mitigation

This flaw can be mitigated in wireshark by disabling the waveagent protocol dissector. In wireshark GUI application click on Analyze->Enabled Protocols and search for "waveagent" and disable in. When using "tshark", the text interface, create a file called "disabled_protos" in the preferences folder (normally .wireshark folder in the home directory of the user running wireshark) and add "waveagent" to it. This should disable the waveagent protocol.

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).

CVSS v2 Score Breakdown

Red HatNVDcve.org
Base Score4.34.3N/A
Attack VectorNetworkNetworkN/A
Access ComplexityMediumMediumN/A
AuthenticationNoneNoneN/A
Confidentiality ImpactNoneNoneN/A
Integrity ImpactNoneNoneN/A
Availability ImpactPartialPartialN/A

Vector

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

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

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