CVE-2021-46705 - CVE House
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Status published Medium CVE-2021-46705

grub2-once uses fixed file name in /var/tmp

Vulnerability Description

A Insecure Temporary File vulnerability in grub-once of grub2 in SUSE Linux Enterprise Server 15 SP4, openSUSE Factory allows local attackers to truncate arbitrary files. This issue affects: SUSE Linux Enterprise Server 15 SP4 grub2 versions prior to 2.06-150400.7.1. SUSE openSUSE Factory grub2 versions prior to 2.06-18.1.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Ludwig Nussel of SUSE

References

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Affected Vendor

Affected Software

SUSE Linux Enterprise Server 15 SP4, openSUSE Factory
Vulnerable Versions:
grub2

Timeline

Official Publish: March 16th, 2022
Last Modified: September 16th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Weaknesses (CWE)

CWE-377

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.