Vulnerability Name:

CVE-2021-4173 (CCN-216124)

Assigned:2021-12-25
Published:2021-12-25
Updated:2022-11-02
Summary:vim is vulnerable to Use After Free
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.0 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
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): High
Integrity (I): High
Availibility (A): High
6.8 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H)
6.1 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.4 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:P/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-416
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-4173

Source: FULLDISC
Type: Mailing List, Third Party Advisory
20220721 APPLE-SA-2022-07-20-4 Security Update 2022-005 Catalina

Source: FULLDISC
Type: Mailing List, Third Party Advisory
20220314 APPLE-SA-2022-03-14-4 macOS Monterey 12.3

Source: FULLDISC
Type: Mailing List, Third Party Advisory
20220516 APPLE-SA-2022-05-16-3 macOS Big Sur 11.6.6

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20220114 Re: 3 new CVE's in vim

Source: XF
Type: UNKNOWN
vim-cve20214173-dos(216124)

Source: CCN
Type: Vim GIT Repository
vim

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/vim/vim/commit/9c23f9bb5fe435b28245ba8ac65aa0ca6b902c04

Source: CONFIRM
Type: Exploit, Third Party Advisory
https://huntr.dev/bounties/a1b236b9-89fb-4ccf-9689-ba11b471e766

Source: CCN
Type: huntr Web site
Use After Free in vim/vim

Source: FEDORA
Type: Third Party Advisory
FEDORA-2022-a3d70b50f0

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2022-48b86d586f

Source: GENTOO
Type: Third Party Advisory
GLSA-202208-32

Source: CCN
Type: Apple security document HT213183
About the security content of macOS Monterey 12.3

Source: CCN
Type: Apple security document HT213256
About the security content of macOS Big Sur 11.6.6

Source: CCN
Type: Apple security document HT213343
About the security content of Security Update 2022-005 Catalina

Source: CONFIRM
Type: Release Notes, Third Party Advisory
https://support.apple.com/kb/HT213183

Source: CONFIRM
Type: Third Party Advisory
https://support.apple.com/kb/HT213256

Source: CONFIRM
Type: Third Party Advisory
https://support.apple.com/kb/HT213343

Source: CCN
Type: Mend Vulnerability Database
CVE-2021-4173

Source: CCN
Type: Vim Web site
Vim

Vulnerable Configuration:Configuration 1:
  • cpe:/a:vim:vim:*:*:*:*:*:*:*:* (Version < 8.2.3902)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:35:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:*:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-008:*:*:*:*:*:*
  • OR cpe:/o:apple:macos:*:*:*:*:*:*:*:* (Version < 12.3)
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2022-001:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2022-002:*:*:*:*:*:*
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2021-007:*:*:*:*:*:*
  • OR cpe:/o:apple:macos:*:*:*:*:*:*:*:* (Version >= 11.0 and < 11.6.6)
  • OR cpe:/o:apple:mac_os_x:10.15.7:security_update_2022-003:*:*:*:*:*:*
  • OR cpe:/o:apple:macos:10.15.7:security_update_2022-004:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:vim:vim:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    vim vim *
    fedoraproject fedora 34
    fedoraproject fedora 35
    apple mac os x 10.15.7 security_update_2020-001
    apple mac os x 10.15.7 security_update_2021-001
    apple mac os x 10.15.7 security_update_2021-002
    apple mac os x 10.15.7
    apple mac os x 10.15.7 security_update_2021-003
    apple mac os x 10.15.7 security_update_2021-004
    apple mac os x 10.15.7 security_update_2021-005
    apple mac os x 10.15.7 security_update_2021-006
    apple mac os x 10.15.7 security_update_2021-008
    apple macos *
    apple mac os x 10.15.7 security_update_2022-001
    apple mac os x 10.15.7 security_update_2022-002
    apple mac os x 10.15.7 security_update_2021-007
    apple macos *
    apple mac os x 10.15.7 security_update_2022-003
    apple macos 10.15.7 security_update_2022-004
    vim vim -