PT-2022-11632 · Halibut+2 · Halibut+2

Carter Yagemann · Published 2022-05-24 · Updated 2024-10-08 · CVE-2021-42612

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Halibut version 1.2

Description A use after free in cleanup index in index.c allows an attacker to cause a segmentation fault or possibly have other unspecified impact via a crafted text document.

Recommendations For Halibut version 1.2, as a temporary workaround, consider disabling the cleanup index function in index.c until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2022-2116

ALT-PU-2022-2546

ALT-PU-2024-13510

CVE-2021-42612

MGASA-2022-0237

Affected Products

Alt Linux

Debian

Halibut

References · 16

• 🔥 https://carteryagemann.com/halibut-case-study.html#poc-halibut-text-uaf · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-42612 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-42612 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-42612 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-42612 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-42612 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-42612 · Security Note
• https://advisories.mageia.org/MGASA-2022-0237.html · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CC7UZ7NRXDA7YSCSGWE2CBQM7OZS3K2R · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-42612 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/CC7UZ7NRXDA7YSCSGWE2CBQM7OZS3K2R · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2022-0237 · Vendor Advisory
• https://t.me/cvenotify/31702 · Telegram Post
• https://t.me/cibsecurity/43288 · Telegram Post
• https://bugs.mageia.org/show_bug.cgi?id=30559 · Note