Vulnerability Name:

CVE-2021-42612 (CCN-227219)

Assigned:2021-10-12
Published:2021-10-12
Updated:2022-11-04
Summary:A use after free in cleanup_index in index.c in Halibut 1.2 allows an attacker to cause a segmentation fault or possibly have other unspecified impact via a crafted text document.
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)
7.1 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: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): High
Integrity (I): High
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)
6.8 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:P/RL:U/RC:R)
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: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
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-416
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-42612

Source: CCN
Type: Carteragemann Web site
Case Study: Security Analysis of Halibut

Source: MISC
Type: Exploit, Third Party Advisory
https://carteryagemann.com/halibut-case-study.html#poc-halibut-text-uaf

Source: XF
Type: UNKNOWN
halibut-cve202142612-dos(227219)

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2022-9a9abd295b

Source: CCN
Type: Ubuntu Packet Web site
Halibut

Source: CCN
Type: Mend Vulnerability Database
CVE-2021-42612

Vulnerable Configuration:Configuration 1:
  • cpe:/a:halibut_project:halibut:1.2:*:*:*:*:*:*:*

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

    • Configuration CCN 1:
  • cpe:/a:halibut_project:halibut:1.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    halibut_project halibut 1.2
    fedoraproject fedora 35
    halibut_project halibut 1.2