From: | Thomas Deutschmann <whissi@g.o> |
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To: | gentoo-announce@l.g.o |
Subject: | [gentoo-announce] [ GLSA 202104-05 ] GRUB: Multiple vulnerabilities |
Date: | Sat, 01 May 2021 00:07:56 |
Message-Id: | ff8e5805-0a12-b178-6bc8-2e832d0abea3@gentoo.org |
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2 | Gentoo Linux Security Advisory GLSA 202104-05 |
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4 | https://security.gentoo.org/ |
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6 | |
7 | Severity: Normal |
8 | Title: GRUB: Multiple vulnerabilities |
9 | Date: April 30, 2021 |
10 | Bugs: #734654, #773991 |
11 | ID: 202104-05 |
12 | |
13 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
14 | |
15 | Synopsis |
16 | ======== |
17 | |
18 | Multiple vulnerabilities have been found in GRUB, the worst might allow |
19 | for circumvention of UEFI Secure Boot. |
20 | |
21 | Background |
22 | ========== |
23 | |
24 | GNU GRUB is a multiboot boot loader used by most Linux systems. |
25 | |
26 | Affected packages |
27 | ================= |
28 | |
29 | ------------------------------------------------------------------- |
30 | Package / Vulnerable / Unaffected |
31 | ------------------------------------------------------------------- |
32 | 1 sys-devel/grub < 2.06_rc1 >= 2.06_rc1 |
33 | |
34 | Description |
35 | =========== |
36 | |
37 | Multiple vulnerabilities have been discovered in GRUB. Please review |
38 | the CVE identifiers referenced below for details. |
39 | |
40 | Impact |
41 | ====== |
42 | |
43 | Please review the referenced CVE identifiers for details. |
44 | |
45 | Workaround |
46 | ========== |
47 | |
48 | There is no known workaround at this time. |
49 | |
50 | Resolution |
51 | ========== |
52 | |
53 | All GRUB users should upgrade to the latest version: |
54 | |
55 | # emerge --sync |
56 | # emerge --ask --oneshot --verbose ">=sys-devel/grub-2.06_rc1" |
57 | |
58 | After upgrading, make sure to run the grub-install command with options |
59 | appropriate for your system. See the GRUB Quick Start guide in the |
60 | references below for examples. Your system will be vulnerable until |
61 | this action is performed. |
62 | |
63 | References |
64 | ========== |
65 | |
66 | [ 1 ] CVE-2020-10713 |
67 | https://nvd.nist.gov/vuln/detail/CVE-2020-10713 |
68 | [ 2 ] CVE-2020-14308 |
69 | https://nvd.nist.gov/vuln/detail/CVE-2020-14308 |
70 | [ 3 ] CVE-2020-14309 |
71 | https://nvd.nist.gov/vuln/detail/CVE-2020-14309 |
72 | [ 4 ] CVE-2020-14310 |
73 | https://nvd.nist.gov/vuln/detail/CVE-2020-14310 |
74 | [ 5 ] CVE-2020-14311 |
75 | https://nvd.nist.gov/vuln/detail/CVE-2020-14311 |
76 | [ 6 ] CVE-2020-14372 |
77 | https://nvd.nist.gov/vuln/detail/CVE-2020-14372 |
78 | [ 7 ] CVE-2020-15705 |
79 | https://nvd.nist.gov/vuln/detail/CVE-2020-15705 |
80 | [ 8 ] CVE-2020-15706 |
81 | https://nvd.nist.gov/vuln/detail/CVE-2020-15706 |
82 | [ 9 ] CVE-2020-15707 |
83 | https://nvd.nist.gov/vuln/detail/CVE-2020-15707 |
84 | [ 10 ] CVE-2020-25632 |
85 | https://nvd.nist.gov/vuln/detail/CVE-2020-25632 |
86 | [ 11 ] CVE-2020-25647 |
87 | https://nvd.nist.gov/vuln/detail/CVE-2020-25647 |
88 | [ 12 ] CVE-2020-27749 |
89 | https://nvd.nist.gov/vuln/detail/CVE-2020-27749 |
90 | [ 13 ] CVE-2020-27779 |
91 | https://nvd.nist.gov/vuln/detail/CVE-2020-27779 |
92 | [ 14 ] CVE-2021-20225 |
93 | https://nvd.nist.gov/vuln/detail/CVE-2021-20225 |
94 | [ 15 ] CVE-2021-20233 |
95 | https://nvd.nist.gov/vuln/detail/CVE-2021-20233 |
96 | [ 16 ] GRUB Quick Start guide |
97 | https://wiki.gentoo.org/wiki/GRUB2_Quick_Start |
98 | |
99 | Availability |
100 | ============ |
101 | |
102 | This GLSA and any updates to it are available for viewing at |
103 | the Gentoo Security Website: |
104 | |
105 | https://security.gentoo.org/glsa/202104-05 |
106 | |
107 | Concerns? |
108 | ========= |
109 | |
110 | Security is a primary focus of Gentoo Linux and ensuring the |
111 | confidentiality and security of our users' machines is of utmost |
112 | importance to us. Any security concerns should be addressed to |
113 | security@g.o or alternatively, you may file a bug at |
114 | https://bugs.gentoo.org. |
115 | |
116 | License |
117 | ======= |
118 | |
119 | Copyright 2021 Gentoo Foundation, Inc; referenced text |
120 | belongs to its owner(s). |
121 | |
122 | The contents of this document are licensed under the |
123 | Creative Commons - Attribution / Share Alike license. |
124 | |
125 | https://creativecommons.org/licenses/by-sa/2.5 |
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