CVE-2021-42614

A use after free in info_width_internal in bk_info.c in Halibut 1.2 allows an attacker to cause a...

7.8 HighFix available

A use after free in info_width_internal in bk_info.c in Halibut 1.2 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted text document.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.88%Unchanged since May 25, 2022

What each source reports

NVD Score used 7.8

A use after free in info_width_internal in bk_info.c in Halibut 1.2 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted text document.

Record: CVE-2021-42614
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-416
Updated: 2026-11-02

CVE List No score

A use after free in info_width_internal in bk_info.c in Halibut 1.2 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted text document.

Record: CVE-2021-42614
Updated: 2026-11-02

EUVDEUVD-2021-29578 No score

A use after free in info_width_internal in bk_info.c in Halibut 1.2 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted text document.

Record: EUVD-2021-29578
Updated: 2026-11-03

GitHub AdvisoriesGHSA-92jc-j25w-49c2 7.8

A use after free in info_width_internal in bk_info.c in Halibut 1.2 allows an attacker to cause a...

A use after free in info_width_internal in bk_info.c in Halibut 1.2 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted text document.

Record: GHSA-92jc-j25w-49c2
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-416
Updated: 2026-11-02

OSV 7.8

A use after free in info_width_internal in bk_info.c in Halibut 1.2 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted text document.

Record: CVE-2021-42614
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2021-42614 7.8

A use after free in info_width_internal in bk_info.c in Halibut 1.2 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted text document.

Record: DEBIAN-CVE-2021-42614
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2021-42614 7.8

A use after free in info_width_internal in bk_info.c in Halibut 1.2 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted text document.

Record: UBUNTU-CVE-2021-42614
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVMGASA-2022-0237 No score

Updated halibut packages fix security vulnerability

Use-after-free in cleanup_index() in index.c (CVE-2021-42612) Double free in cleanup_index() in index.c (CVE-2021-42613) Use-after-free in info_width_internal() in bk_info.c (CVE-2021-42614)

Record: MGASA-2022-0237
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`halibut` Debian:12	before 1.3-1	1.3-1
`halibut` Debian:13	before 1.3-1	1.3-1
`halibut` Debian:14	before 1.3-1	1.3-1
`halibut` Mageia:8 From an advisory covering 3 CVEs	before 1.3-1.mga8	1.3-1.mga8
`halibut` Ubuntu:16.04:LTS	All versions, plus listed versions 1.0+svn20090906-91.1-11.1-21.1-31.1-4	None known
`halibut` Ubuntu:18.04:LTS	All versions, plus listed versions 1.2-1	None known
`halibut` Ubuntu:20.04:LTS	All versions, plus listed versions 1.2-2	None known
`halibut` Ubuntu:22.04:LTS	All versions, plus listed versions 1.2-4build11.2-51.3-11.3-2	None known
`halibut` Ubuntu:24.04:LTS	All versions, plus listed versions 1.3-2	None known
`halibut` Ubuntu:25.10	All versions, plus listed versions 1.3-2	None known
`halibut` Ubuntu:26.10	All versions, plus listed versions 1.3-5	None known
`halibut` Ubuntu:26.04:LTS	All versions, plus listed versions 1.3-21.3-5	None known

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-42614 is a high vulnerability (CVSS 7.8) in Halibut Project Halibut, published May 24, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.88%, the 59th percentile. Fixed in halibut 1.3-1.

References

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