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

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CVE-2023-4398

Severity CVSS v4.0:
Pending analysis
Type:
CWE-190 Integer Overflow or Wraparound
Publication date:
28/11/2023
Last modified:
04/12/2023

Description

An integer overflow vulnerability in the source code of the QuickSec IPSec toolkit used in the VPN feature of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions on an affected device by sending a crafted IKE packet.

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

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:* 4.32 (including) 5.37 (including)
cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:* 4.50 (including) 5.37 (including)
cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools