title: grub2-once uses fixed file name in /var/tmp
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.
problem types: CWE-377: Insecure Temporary File
affected:
{
product: SUSE Linux Enterprise Server 15 SP4
vendor: SUSE
versions:
lessThan: 2.06-150400.7.1, status: affected, version: grub2, versionType: custom
}
{
product: openSUSE Factory
vendor: SUSE
versions:
lessThan: 2.06-18.1, status: affected, version: grub2, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: LOW
baseScore: 5.1
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: LOW
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
version: 3.1
]