Vulnerability Name:

CVE-2021-3670 (CCN-234229)

Assigned:2021-07-30
Published:2022-07-19
Updated:2022-08-29
Summary:MaxQueryDuration not honoured in Samba AD DC LDAP
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/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): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/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): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
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-2021-3670

Source: MISC
Type: Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2077533

Source: CCN
Type: The Samba-Bugzilla - Bug 14694
(CVE-2021-3670) - CVE-2021-3670 [SECURITY] MaxQueryDuration not honoured in Samba AD DC LDAP

Source: MISC
Type: Issue Tracking, Patch, Vendor Advisory
https://bugzilla.samba.org/show_bug.cgi?id=14694

Source: XF
Type: UNKNOWN
samba-cve20213670-dos(234229)

Source: CCN
Type: Samba GIT Repository
CVE-2021-3670 ldap_server: Set timeout on requests based on MaxQueryDuration

Source: MISC
Type: Patch, Third Party Advisory
https://gitlab.com/samba-team/samba/-/commit/1d5b155619bc532c46932965b215bd73a920e56f

Source: MISC
Type: Patch, Third Party Advisory
https://gitlab.com/samba-team/samba/-/commit/2b3af3b560c9617a233c131376c870fce146c002

Source: MISC
Type: Patch, Third Party Advisory
https://gitlab.com/samba-team/samba/-/commit/3507e96b3dcf0c0b8eff7b2c08ffccaf0812a393

Source: MISC
Type: Patch, Third Party Advisory
https://gitlab.com/samba-team/samba/-/commit/5f0590362c5c0c5ee20503a67467f9be2d50e73b

Source: MISC
Type: Patch, Third Party Advisory
https://gitlab.com/samba-team/samba/-/commit/86fe9d48883f87c928bf31ccbd275db420386803

Source: MISC
Type: Patch, Third Party Advisory
https://gitlab.com/samba-team/samba/-/commit/dcfcafdbf756e12d9077ad7920eea25478c29f81

Source: MISC
Type: Patch, Third Party Advisory
https://gitlab.com/samba-team/samba/-/commit/e1ab0c43629686d1d2c0b0b2bcdc90057a792049

Source: CCN
Type: Mend Vulnerability Database
CVE-2021-3670

Vulnerable Configuration:Configuration 1:
  • cpe:/a:samba:samba:*:*:*:*:*:*:*:* (Version >= 4.1.0

  • Configuration 2:
  • cpe:/a:redhat:storage:3.0:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:35:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:samba:samba:4.12.0:-:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:7544
    P
    ldb-tools-2.6.2-150500.1.1 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:95256
    P
    Security update for ldb, samba (Moderate)
    2022-07-06
    oval:org.opensuse.security:def:93309
    P
    (Moderate)
    2022-07-06
    oval:org.opensuse.security:def:94042
    P
    (Moderate)
    2022-07-06
    oval:org.opensuse.security:def:95414
    P
    Security update for ldb, samba (Moderate)
    2022-07-06
    oval:org.opensuse.security:def:93467
    P
    (Moderate)
    2022-07-06
    oval:org.opensuse.security:def:94254
    P
    (Moderate)
    2022-07-06
    oval:org.opensuse.security:def:559
    P
    Security update for ldb, samba (Moderate)
    2022-07-06
    oval:org.opensuse.security:def:93621
    P
    (Moderate)
    2022-07-06
    oval:org.opensuse.security:def:3626
    P
    Security update for ldb, samba (Moderate)
    2022-07-06
    oval:org.opensuse.security:def:94463
    P
    (Moderate)
    2022-07-06
    oval:org.opensuse.security:def:93149
    P
    (Moderate)
    2022-07-06
    oval:org.opensuse.security:def:93828
    P
    (Moderate)
    2022-07-06
    oval:org.opensuse.security:def:3781
    P
    Security update for ldb, samba (Moderate)
    2022-07-06
    oval:org.opensuse.security:def:42279
    P
    Security update for ldb (Low)
    2022-05-09
    oval:org.opensuse.security:def:883
    P
    Security update for ldb (Low)
    2022-05-09
    oval:org.opensuse.security:def:42378
    P
    Security update for ldb (Low)
    2022-05-09
    oval:org.opensuse.security:def:101621
    P
    Security update for ldb (Low) (in QA)
    2022-04-13
    BACK
    samba samba *
    redhat storage 3.0
    fedoraproject fedora 35
    samba samba 4.12.0