Vulnerability Name:

CVE-2021-33603 (CCN-211021)

Assigned:2021-10-06
Published:2021-10-06
Updated:2021-10-15
Summary:A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Atlant whereby the AVPACK module component used in certain F-Secure products can crash while scanning a fuzzed files. The exploit can be triggered remotely by an attacker. A successful attack will result in Denial-of-Service (DoS) of the Anti-Virus engine.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-33603

Source: XF
Type: UNKNOWN
fsecure-cve202133603-dos(211021)

Source: MISC
Type: Vendor Advisory
https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame

Source: CCN
Type: F-Secure Web site
Denial-of-Service (DoS) Vulnerability

Source: MISC
Type: Vendor Advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33603

Vulnerable Configuration:Configuration 1:
  • cpe:/a:f-secure:atlant:-:*:*:*:*:*:*:*
  • OR cpe:/a:f-secure:cloud_protection_for_salesforce:-:*:*:*:*:*:*:*
  • OR cpe:/a:f-secure:elements_for_microsoft_365:-:*:*:*:*:*:*:*
  • OR cpe:/a:f-secure:internet_gatekeeper:-:*:*:*:*:-:*:*
  • OR cpe:/a:f-secure:linux_security:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/a:f-secure:elements_endpoint_detection_and_response:-:*:*:*:*:*:*:*
  • OR cpe:/a:f-secure:elements_endpoint_protection:-:*:*:*:*:*:*:*
  • AND
  • cpe:/o:apple:macos:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:f-secure:internet_gatekeeper:*:*:*:*:*:*:*:*
  • OR cpe:/a:f-secure:cloud_protection_for_salesforce:-:*:*:*:*:*:*:*
  • OR cpe:/a:f-secure:elements_for_microsoft_365:-:*:*:*:*:*:*:*
  • OR cpe:/a:f-secure:atlant:-:*:*:*:*:*:*:*
  • OR cpe:/a:f-secure:linux_security:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    f-secure atlant -
    f-secure cloud protection for salesforce -
    f-secure elements for microsoft 365 -
    f-secure internet gatekeeper -
    f-secure linux security -
    f-secure elements endpoint detection and response -
    f-secure elements endpoint protection -
    apple macos -
    microsoft windows -
    f-secure internet gatekeeper *
    f-secure cloud protection for salesforce -
    f-secure elements for microsoft 365 -
    f-secure atlant -
    f-secure linux security -