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CVE-2021-3981

🗓️ 10 Mar 2022 00:00:00Reported by ubuntu.comType

A flaw in grub2 with wrong permission in grub.cfg allows unauthorized users to read encrypted password

Reporter	Title	Published	Views	Family All 77
Tenable Nessus	RHEL 8 : grub2 (RHSA-2022:2110)	11 May 202200:00	–	nessus
Tenable Nessus	CentOS 8 : grub2 (CESA-2022:2110)	10 May 202200:00	–	nessus
Tenable Nessus	EulerOS Virtualization 2.10.0 : grub2 (EulerOS-SA-2022-2074)	15 Jul 202200:00	–	nessus
Tenable Nessus	AlmaLinux 8 : grub2 (ALSA-2022:2110)	12 May 202200:00	–	nessus
Tenable Nessus	Rocky Linux 8 : grub2 (RLSA-2022:2110)	18 May 202200:00	–	nessus
Tenable Nessus	EulerOS 2.0 SP10 : grub2 (EulerOS-SA-2022-1819)	13 Jun 202200:00	–	nessus
Tenable Nessus	EulerOS 2.0 SP10 : grub2 (EulerOS-SA-2022-1828)	13 Jun 202200:00	–	nessus
Tenable Nessus	CBL Mariner 2.0 Security Update: grub2 (CVE-2021-3981)	3 Jul 202400:00	–	nessus
Tenable Nessus	EulerOS 2.0 SP11 : grub2 (EulerOS-SA-2023-1036)	5 Jan 202300:00	–	nessus
Tenable Nessus	EulerOS 2.0 SP11 : grub2 (EulerOS-SA-2023-1011)	5 Jan 202300:00	–	nessus

Source	Link
access	www.access.redhat.com/security/cve/CVE-2021-3981
ubuntu	www.ubuntu.com/security/notices/USN-6355-1
cve	www.cve.org/CVERecord
nvd	www.nvd.nist.gov/vuln/detail/CVE-2021-3981
launchpad	www.launchpad.net/bugs/cve/CVE-2021-3981
security-tracker	www.security-tracker.debian.org/tracker/CVE-2021-3981

OS	OS Version	Architecture	Package	Package Version	Filename
ubuntu	18.04	noarch	grub2-signed	any	UNKNOWN
ubuntu	20.04	noarch	grub2-signed	1.187.3~20.04.1	UNKNOWN
ubuntu	22.04	noarch	grub2-signed	1.187.3~22.04.1	UNKNOWN
ubuntu	14.04	noarch	grub2-signed	any	UNKNOWN
ubuntu	16.04	noarch	grub2-signed	any	UNKNOWN
ubuntu	18.04	noarch	grub2-unsigned	any	UNKNOWN
ubuntu	20.04	noarch	grub2-unsigned	2.06-2ubuntu14.1	UNKNOWN
ubuntu	22.04	noarch	grub2-unsigned	2.06-2ubuntu14.1	UNKNOWN
ubuntu	16.04	noarch	grub2-unsigned	any	UNKNOWN

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10 Mar 2022 00:00Current

4.6Medium risk

Vulners AI Score4.6

CVSS22.1

CVSS33.3

EPSS0.000