Vulnerability Name:

CVE-2021-35063 (CCN-206315)

Assigned:2021-07-08
Published:2021-07-08
Updated:2021-11-30
Summary:Suricata before 5.0.7 and 6.x before 6.0.3 has a "critical evasion."
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 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:H/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): High
CVSS v2 Severity:5.0 Medium (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
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
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-2021-35063

Source: MISC
Type: Mailing List, Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990835

Source: CCN
Type: Red Hat Bugzilla - Bug 1980453
(CVE-2021-35063) - CVE-2021-35063 suricata: critical evasion

Source: MISC
Type: Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1980453

Source: XF
Type: UNKNOWN
suricata-cve202135063-dos(206315)

Source: CCN
Type: Suricata Web site
Suricata 6.0.3 and 5.0.7 Released

Source: CONFIRM
Type: Release Notes, Vendor Advisory
https://forum.suricata.io/t/suricata-6-0-3-and-5-0-7-released/1489

Source: MISC
Type: Third Party Advisory
https://github.com/OISF/suricata/releases

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-c7fd9e9126

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-ad5883c848

Source: MISC
Type: Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2021-35063

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-35063

Vulnerable Configuration:Configuration 1:
  • cpe:/a:oisf:suricata:*:*:*:*:*:*:*:* (Version < 5.0.7)
  • OR cpe:/a:oisf:suricata:*:*:*:*:*:*:*:* (Version >= 6.0.0 and < 6.0.3)

  • Configuration 2:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

  • Configuration 3:
  • cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:35:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:oisf:suricata:5.0.6:*:*:*:*:*:*:*
  • OR cpe:/a:oisf:suricata:6.0.2:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    oisf suricata *
    oisf suricata *
    debian debian linux 9.0
    debian debian linux 10.0
    fedoraproject fedora 34
    fedoraproject fedora 35
    oisf suricata 5.0.6
    oisf suricata 6.0.2