grub2-once uses fixed file name in /var/tmp
CVE-2021-46705

5.1MEDIUM

Key Information:

Vendor: Suse
Status: Suse Linux Enterprise Server 15 Sp4; Opensuse Factory
Vendor: CVE Published:; 16 March 2022

Summary

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.

Affected Version(s)

openSUSE Factory grub2 < 2.06-18.1

SUSE Linux Enterprise Server 15 SP4 grub2 < 2.06-150400.7.1

References

https://bugzilla.suse.com/show_bug.cgi?id=1190474

x_refsource_CONFIRM

CVSS V3.1

Score:

5.1

Severity:

MEDIUM

Confidentiality:

None

Integrity:

Low

Availability:

None

Attack Vector:

Local

Attack Complexity:

Low

Privileges Required:

None

User Interaction:

None

Scope:

Unchanged

Timeline

Vulnerability published
Mar 16, 2022
Vulnerability Reserved
Mar 9, 2022

Credit

Ludwig Nussel of SUSE