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Sicherheit: Mehrere Probleme in grub2
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in grub2
ID: SUSE-SU-2021:0679-1
Distribution: SUSE
Plattformen: SUSE OpenStack Cloud 7, SUSE Linux Enterprise Server for SAP 12-SP2, SUSE Linux Enterprise Server 12-SP2-LTSS, SUSE Linux Enterprise Server 12-SP2-BCL
Datum: Mi, 3. März 2021, 07:42
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27779
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20233
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25632
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14372
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20225
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27749
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25647
Applikationen: GRUB

Originalnachricht


SUSE Security Update: Security update for grub2
______________________________________________________________________________

Announcement ID: SUSE-SU-2021:0679-1
Rating: important
References: #1175970 #1176711 #1177883 #1179264 #1179265
#1182057 #1182262 #1182263
Cross-References: CVE-2020-14372 CVE-2020-25632 CVE-2020-25647
CVE-2020-27749 CVE-2020-27779 CVE-2021-20225
CVE-2021-20233
CVSS scores:
CVE-2020-14372 (SUSE): 7.5
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVE-2020-25632 (SUSE): 7.5
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVE-2020-25647 (SUSE): 7.6
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVE-2020-27749 (SUSE): 7.5
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVE-2020-27779 (SUSE): 7.5
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVE-2021-20225 (SUSE): 7.5
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVE-2021-20233 (SUSE): 7.5
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected Products:
SUSE OpenStack Cloud 7
SUSE Linux Enterprise Server for SAP 12-SP2
SUSE Linux Enterprise Server 12-SP2-LTSS
SUSE Linux Enterprise Server 12-SP2-BCL
______________________________________________________________________________

An update that solves 7 vulnerabilities and has one errata
is now available.

Description:

This update for grub2 fixes the following issues:

grub2 now implements the new "SBAT" method for SHIM based secure
boot
revocation. (bsc#1182057)

Following security issues are fixed that can violate secure boot
constraints:

- CVE-2020-25632: Fixed a use-after-free in rmmod command (bsc#1176711)
- CVE-2020-25647: Fixed an out-of-bound write in
grub_usb_device_initialize() (bsc#1177883)
- CVE-2020-27749: Fixed a stack buffer overflow in
grub_parser_split_cmdline (bsc#1179264)
- CVE-2020-27779, CVE-2020-14372: Disallow cutmem and acpi commands in
secure boot mode (bsc#1179265 bsc#1175970)
- CVE-2021-20225: Fixed a heap out-of-bounds write in short form option
parser (bsc#1182262)
- CVE-2021-20233: Fixed a heap out-of-bound write due to mis-calculation
of space required for quoting (bsc#1182263)

grub2 was bumped to version 2.02, same as SUSE Linux Enterprise 12 SP3.


Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation
methods
like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- SUSE OpenStack Cloud 7:

zypper in -t patch SUSE-OpenStack-Cloud-7-2021-679=1

- SUSE Linux Enterprise Server for SAP 12-SP2:

zypper in -t patch SUSE-SLE-SAP-12-SP2-2021-679=1

- SUSE Linux Enterprise Server 12-SP2-LTSS:

zypper in -t patch SUSE-SLE-SERVER-12-SP2-2021-679=1

- SUSE Linux Enterprise Server 12-SP2-BCL:

zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2021-679=1



Package List:

- SUSE OpenStack Cloud 7 (s390x x86_64):

grub2-2.02-115.59.1
grub2-debuginfo-2.02-115.59.1
grub2-debugsource-2.02-115.59.1

- SUSE OpenStack Cloud 7 (noarch):

grub2-snapper-plugin-2.02-115.59.1
grub2-systemd-sleep-plugin-2.02-115.59.1

- SUSE OpenStack Cloud 7 (x86_64):

grub2-i386-pc-2.02-115.59.1
grub2-x86_64-efi-2.02-115.59.1
grub2-x86_64-xen-2.02-115.59.1

- SUSE OpenStack Cloud 7 (s390x):

grub2-s390x-emu-2.02-115.59.1

- SUSE Linux Enterprise Server for SAP 12-SP2 (ppc64le x86_64):

grub2-2.02-115.59.1
grub2-debuginfo-2.02-115.59.1

- SUSE Linux Enterprise Server for SAP 12-SP2 (ppc64le):

grub2-powerpc-ieee1275-2.02-115.59.1

- SUSE Linux Enterprise Server for SAP 12-SP2 (x86_64):

grub2-debugsource-2.02-115.59.1
grub2-i386-pc-2.02-115.59.1
grub2-x86_64-efi-2.02-115.59.1
grub2-x86_64-xen-2.02-115.59.1

- SUSE Linux Enterprise Server for SAP 12-SP2 (noarch):

grub2-snapper-plugin-2.02-115.59.1
grub2-systemd-sleep-plugin-2.02-115.59.1

- SUSE Linux Enterprise Server 12-SP2-LTSS (ppc64le s390x x86_64):

grub2-2.02-115.59.1
grub2-debuginfo-2.02-115.59.1

- SUSE Linux Enterprise Server 12-SP2-LTSS (s390x x86_64):

grub2-debugsource-2.02-115.59.1

- SUSE Linux Enterprise Server 12-SP2-LTSS (ppc64le):

grub2-powerpc-ieee1275-2.02-115.59.1

- SUSE Linux Enterprise Server 12-SP2-LTSS (x86_64):

grub2-i386-pc-2.02-115.59.1
grub2-x86_64-efi-2.02-115.59.1
grub2-x86_64-xen-2.02-115.59.1

- SUSE Linux Enterprise Server 12-SP2-LTSS (noarch):

grub2-snapper-plugin-2.02-115.59.1
grub2-systemd-sleep-plugin-2.02-115.59.1

- SUSE Linux Enterprise Server 12-SP2-LTSS (s390x):

grub2-s390x-emu-2.02-115.59.1

- SUSE Linux Enterprise Server 12-SP2-BCL (noarch):

grub2-snapper-plugin-2.02-115.59.1
grub2-systemd-sleep-plugin-2.02-115.59.1

- SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):

grub2-2.02-115.59.1
grub2-debuginfo-2.02-115.59.1
grub2-debugsource-2.02-115.59.1
grub2-i386-pc-2.02-115.59.1
grub2-x86_64-efi-2.02-115.59.1
grub2-x86_64-xen-2.02-115.59.1


References:

https://www.suse.com/security/cve/CVE-2020-14372.html
https://www.suse.com/security/cve/CVE-2020-25632.html
https://www.suse.com/security/cve/CVE-2020-25647.html
https://www.suse.com/security/cve/CVE-2020-27749.html
https://www.suse.com/security/cve/CVE-2020-27779.html
https://www.suse.com/security/cve/CVE-2021-20225.html
https://www.suse.com/security/cve/CVE-2021-20233.html
https://bugzilla.suse.com/1175970
https://bugzilla.suse.com/1176711
https://bugzilla.suse.com/1177883
https://bugzilla.suse.com/1179264
https://bugzilla.suse.com/1179265
https://bugzilla.suse.com/1182057
https://bugzilla.suse.com/1182262
https://bugzilla.suse.com/1182263
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