Vulnerability Name:

CVE-2021-27506 (CCN-198469)

Assigned:2021-02-19
Published:2021-02-19
Updated:2022-07-01
Summary:The ClamAV Engine (version 0.103.1 and below) component embedded in Storsmshield Network Security (SNS) is subject to DoS in case of parsing of malformed png files. This affect Netasq versions 9.1.0 to 9.1.11 and SNS versions 1.0.0 to 4.2.0. This issue is fixed in SNS 3.7.19, 3.11.7 and 4.2.1.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
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
5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
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
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
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-27506

Source: CCN
Type: Stormshield Web site
Stormshield Network Security

Source: CONFIRM
Type: Broken Link, Vendor Advisory
https://advisories.stormshield.eu/2021-003/

Source: MISC
Type: Vendor Advisory
https://blog.clamav.net/2021/02/clamav-01031-patch-release.html

Source: XF
Type: UNKNOWN
stormshield-cve202127506-dos(198469)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:stormshield:network_security:*:*:*:*:*:*:*:* (Version >= 1.0 and <= 4.2.0)
  • OR cpe:/a:netasq_project:netasq:*:*:*:*:*:*:*:* (Version >= 9.1.0 and <= 9.1.11)

    • Configuration 2:
  • cpe:/a:clamav:clamav:*:*:*:*:*:*:*:* (Version <= 0.103.1)

    • * Denotes that component is vulnerable
    BACK
    stormshield network security *
    netasq_project netasq *
    clamav clamav *