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CVE-2022-20968

Severity CVSS v4.0:
Pending analysis
Type:
CWE-787 Out-of-bounds Write
Publication date:
12/12/2022
Last modified:
25/01/2024

Description

A vulnerability in the Cisco Discovery Protocol processing feature of Cisco IP Phone 7800 and 8800 Series firmware could allow an unauthenticated, adjacent attacker to cause a stack overflow on an affected device.<br /> <br /> This vulnerability is due to insufficient input validation of received Cisco Discovery Protocol packets. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol traffic to an affected device. A successful exploit could allow the attacker to cause a stack overflow, resulting in possible remote code execution or a denial of service (DoS) condition on an affected device.

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
8.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ip_phone_7811_firmware:9.3\(3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:9.3\(4\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:9.3\(4\)sr1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:9.3\(4\)sr2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:9.3\(4\)sr3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:10.1\(1\)sr1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:10.1\(1\)sr2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:10.1\(1.9\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:10.2\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:10.2\(1\)sr1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:10.2\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:10.3\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:10.3\(1\)sr1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:10.3\(1\)sr2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ip_phone_7811_firmware:10.3\(1\)sr3:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools