Vulnerability Name:

CVE-2021-44747 (CCN-220677)

Assigned:2021-12-08
Published:2022-03-01
Updated:2022-07-12
Summary:A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Linux Security whereby the Fmlib component used in certain F-Secure products can crash while scanning fuzzed files. The exploit can be triggered remotely by an attacker. A successful attack will result in Denial-of-Service 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
5.4 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L)
4.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/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): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
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
5.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-44747

Source: XF
Type: UNKNOWN
fsecure-cve202144747-dos(220677)

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

Vulnerable Configuration:Configuration 1:
  • cpe:/a:f-secure:security_cloud:*:*:*:*:*:*:*:* (Version < 2022-02-23_01)
  • OR cpe:/a:f-secure:internet_gatekeeper:*:*:*:*:*:*:*:* (Version <= 2022-02-23_01)
  • OR cpe:/a:f-secure:atlant:*:*:*:*:*:*:*:* (Version < 2022-02-23_01)
  • OR cpe:/a:f-secure:linux_security:*:*:*:*:*:*:*:* (Version < 2022-02-23_01)
  • OR cpe:/a:f-secure:elements_endpoint_protection:*:*:*:*:*:mac:*:* (Version < 2022-02-23_01)

    • Configuration CCN 1:
  • cpe:/a:f-secure:internet_gatekeeper:-:*:*:*:*:-:*:*
  • OR cpe:/a:f-secure:security_cloud:-:*:*:*:*:*:*:*
  • OR cpe:/a:f-secure:linux_security:-:*:*:*:*:*:*:*
  • OR cpe:/a:f-secure:linux_security_64:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    f-secure security cloud *
    f-secure internet gatekeeper *
    f-secure atlant *
    f-secure linux security *
    f-secure elements endpoint protection *
    f-secure internet gatekeeper -
    f-secure security cloud -
    f-secure linux security -
    f-secure linux security 64 -