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

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CVE-2019-1635

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
03/05/2019
Last modified:
16/10/2020

Description

A vulnerability in the call-handling functionality of Session Initiation Protocol (SIP) Software for Cisco IP Phone 7800 Series and 8800 Series 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 is due to incomplete error handling when XML data within a SIP packet is parsed. An attacker could exploit this vulnerability by sending a SIP packet that contains a malicious XML payload 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.

Impact

Vector 3.x
CVSS:3.1/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:3.1/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_conference_phone_7832_firmware:9.3\(4\)sr3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_conference_phone_7832_firmware:10.3\(1\)sr4b:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_conference_phone_7832_firmware:11.0\(4\)sr2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_conference_phone_7832_firmware:12.1\(1\)sr1:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_conference_phone_7832:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_conference_phone_8832_firmware:9.3\(4\)sr3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_conference_phone_8832_firmware:10.3\(1\)sr4b:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_conference_phone_8832_firmware:11.0\(4\)sr2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_conference_phone_8832_firmware:12.1\(1\)sr1:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_conference_phone_8832:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:9.3\(4\)sr3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:10.3\(1\)sr4b:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:11.0\(4\)sr2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:12.1\(1\)sr1:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ip_phone_7811:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools