Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2018-0316

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
07/06/2018
Last modified:
09/10/2019

Description

A vulnerability in the Session Initiation Protocol (SIP) call-handling functionality of Cisco IP Phone 6800, 7800, and 8800 Series Phones with Multiplatform Firmware could allow an unauthenticated, remote attacker to cause an affected phone to reload unexpectedly, resulting in a temporary denial of service (DoS) condition. The vulnerability exists because the firmware of an affected phone incorrectly handles errors that could occur when an incoming phone call is not answered. An attacker could exploit this vulnerability by sending a set of maliciously crafted SIP packets to an affected phone. A successful exploit could allow the attacker to cause the affected phone to reload unexpectedly, resulting in a temporary DoS condition. This vulnerability affects Cisco IP Phone 6800, 7800, and 8800 Series Phones with Multiplatform Firmware if they are running a Multiplatform Firmware release prior to Release 11.1(2). Cisco Bug IDs: CSCvi24718.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ip_phone_firmware:11.1\(2\):*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_6841:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_6851:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_7811:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_7821:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_7841:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_7861:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_8811:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_8841:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_8845:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_8851:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_8861:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_8865:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools