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Red Hat Product Errata RHSA-2021:2790 - Security Advisory
Issued:
2021-07-20
Updated:
2021-07-20

RHSA-2021:2790 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Moderate: shim and fwupd security update

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for fwupd, shim, shim-unsigned-aarch64, and shim-unsigned-x64 is now available for Red Hat Enterprise Linux 8.2 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The shim package contains a first-stage UEFI boot loader that handles chaining to a trusted full boot loader under secure boot environments.

The fwupd packages provide a service that allows session software to update device firmware.

The following packages have been upgraded to a later upstream version: shim (15.4). (BZ#1932411)

Security Fix(es):

  • grub2: acpi command allows privileged user to load crafted ACPI tables when Secure Boot is enabled (CVE-2020-14372)
  • grub2: Use-after-free in rmmod command (CVE-2020-25632)
  • grub2: Out-of-bounds write in grub_usb_device_initialize() (CVE-2020-25647)
  • grub2: Stack buffer overflow in grub_parser_split_cmdline() (CVE-2020-27749)
  • grub2: cutmem command allows privileged user to remove memory regions when Secure Boot is enabled (CVE-2020-27779)
  • grub2: Heap out-of-bounds write in short form option parser (CVE-2021-20225)
  • grub2: Heap out-of-bounds write due to miscalculation of space required for quoting (CVE-2021-20233)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.2 x86_64
  • Red Hat Enterprise Linux Server - AUS 8.2 x86_64
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.2 s390x
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.2 ppc64le
  • Red Hat Enterprise Linux Server - TUS 8.2 x86_64
  • Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.2 aarch64
  • Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.2 ppc64le
  • Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.2 x86_64
  • Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 8.2 x86_64
  • Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 8.2 aarch64

Fixes

  • BZ - 1873150 - CVE-2020-14372 grub2: acpi command allows privileged user to load crafted ACPI tables when Secure Boot is enabled
  • BZ - 1879577 - CVE-2020-25632 grub2: Use-after-free in rmmod command
  • BZ - 1886936 - CVE-2020-25647 grub2: Out-of-bounds write in grub_usb_device_initialize()
  • BZ - 1899966 - CVE-2020-27749 grub2: Stack buffer overflow in grub_parser_split_cmdline()
  • BZ - 1900698 - CVE-2020-27779 grub2: cutmem command allows privileged user to remove memory regions when Secure Boot is enabled
  • BZ - 1924696 - CVE-2021-20225 grub2: Heap out-of-bounds write in short form option parser
  • BZ - 1926263 - CVE-2021-20233 grub2: Heap out-of-bounds write due to miscalculation of space required for quoting

CVEs

  • CVE-2020-14372
  • CVE-2020-25632
  • CVE-2020-25647
  • CVE-2020-27749
  • CVE-2020-27779
  • CVE-2021-20225
  • CVE-2021-20233

References

  • https://access.redhat.com/security/updates/classification/#moderate
  • https://access.redhat.com/security/vulnerabilities/RHSB-2021-003
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.2

SRPM
fwupd-1.1.4-9.el8_2.src.rpm SHA-256: f87cadd799211e8281b8e088534ee9d6e3d78ec6f8dcb48ebed7dc8d7ab67ccf
shim-15.4-2.el8_1.src.rpm SHA-256: 3bfc26de867105a4c11b7ad56cd82b1d649f45b5d6d51ad2b1474acd46c624f0
x86_64
fwupd-1.1.4-9.el8_2.x86_64.rpm SHA-256: e7e50e747ef5a8a8320020e27b3e76bd9fcac81c703e0f8007233c8e0fa3fef2
fwupd-debuginfo-1.1.4-9.el8_2.x86_64.rpm SHA-256: dbd5ba6ce3d32defb285c9117b519d5f9a86c92de383137d74e2114876b5e5e1
fwupd-debugsource-1.1.4-9.el8_2.x86_64.rpm SHA-256: 2662a5292fc0a1a25cc33ee6e7ea0728a95082982bbfdf16a52c3e57bb96dba6
shim-ia32-15.4-2.el8_1.x86_64.rpm SHA-256: 540fc6f47a51b210369e85517f70aba9e91b84acbc423f0c70f7653d1f357d71
shim-x64-15.4-2.el8_1.x86_64.rpm SHA-256: c5fb6e950b077770f207e29bb31e408739272058892ba8bf0066a9483575d306

Red Hat Enterprise Linux Server - AUS 8.2

SRPM
fwupd-1.1.4-9.el8_2.src.rpm SHA-256: f87cadd799211e8281b8e088534ee9d6e3d78ec6f8dcb48ebed7dc8d7ab67ccf
shim-15.4-2.el8_1.src.rpm SHA-256: 3bfc26de867105a4c11b7ad56cd82b1d649f45b5d6d51ad2b1474acd46c624f0
x86_64
fwupd-1.1.4-9.el8_2.x86_64.rpm SHA-256: e7e50e747ef5a8a8320020e27b3e76bd9fcac81c703e0f8007233c8e0fa3fef2
fwupd-debuginfo-1.1.4-9.el8_2.x86_64.rpm SHA-256: dbd5ba6ce3d32defb285c9117b519d5f9a86c92de383137d74e2114876b5e5e1
fwupd-debugsource-1.1.4-9.el8_2.x86_64.rpm SHA-256: 2662a5292fc0a1a25cc33ee6e7ea0728a95082982bbfdf16a52c3e57bb96dba6
shim-ia32-15.4-2.el8_1.x86_64.rpm SHA-256: 540fc6f47a51b210369e85517f70aba9e91b84acbc423f0c70f7653d1f357d71
shim-x64-15.4-2.el8_1.x86_64.rpm SHA-256: c5fb6e950b077770f207e29bb31e408739272058892ba8bf0066a9483575d306

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.2

SRPM
fwupd-1.1.4-9.el8_2.src.rpm SHA-256: f87cadd799211e8281b8e088534ee9d6e3d78ec6f8dcb48ebed7dc8d7ab67ccf
s390x
fwupd-1.1.4-9.el8_2.s390x.rpm SHA-256: 013890ba6788b19827ad458d10de42ddccd3d6dbeaa8b0d4c8893225642a8f22
fwupd-debuginfo-1.1.4-9.el8_2.s390x.rpm SHA-256: 261f76b7e2d18cceede69c63456583896f41d66cb05fead4371dec9eae64c051
fwupd-debugsource-1.1.4-9.el8_2.s390x.rpm SHA-256: 978513d2edd008d3254e30d214bcd9565a3a545d64f223d546689d5584b8f391

Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.2

SRPM
fwupd-1.1.4-9.el8_2.src.rpm SHA-256: f87cadd799211e8281b8e088534ee9d6e3d78ec6f8dcb48ebed7dc8d7ab67ccf
ppc64le
fwupd-1.1.4-9.el8_2.ppc64le.rpm SHA-256: a370a6b5341ff99b8203df3921de31f164a98a5b5d8331a0d91260e4799bd29d
fwupd-debuginfo-1.1.4-9.el8_2.ppc64le.rpm SHA-256: 86cef4c3f608dac7b1a5a00815667e367580389dcb68da51104badf6cffd142f
fwupd-debugsource-1.1.4-9.el8_2.ppc64le.rpm SHA-256: 514e5339431aa5593712ba05ab1f5f67c67073e9bfa443240301db605a3e4c80

Red Hat Enterprise Linux Server - TUS 8.2

SRPM
fwupd-1.1.4-9.el8_2.src.rpm SHA-256: f87cadd799211e8281b8e088534ee9d6e3d78ec6f8dcb48ebed7dc8d7ab67ccf
shim-15.4-2.el8_1.src.rpm SHA-256: 3bfc26de867105a4c11b7ad56cd82b1d649f45b5d6d51ad2b1474acd46c624f0
x86_64
fwupd-1.1.4-9.el8_2.x86_64.rpm SHA-256: e7e50e747ef5a8a8320020e27b3e76bd9fcac81c703e0f8007233c8e0fa3fef2
fwupd-debuginfo-1.1.4-9.el8_2.x86_64.rpm SHA-256: dbd5ba6ce3d32defb285c9117b519d5f9a86c92de383137d74e2114876b5e5e1
fwupd-debugsource-1.1.4-9.el8_2.x86_64.rpm SHA-256: 2662a5292fc0a1a25cc33ee6e7ea0728a95082982bbfdf16a52c3e57bb96dba6
shim-ia32-15.4-2.el8_1.x86_64.rpm SHA-256: 540fc6f47a51b210369e85517f70aba9e91b84acbc423f0c70f7653d1f357d71
shim-x64-15.4-2.el8_1.x86_64.rpm SHA-256: c5fb6e950b077770f207e29bb31e408739272058892ba8bf0066a9483575d306

Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.2

SRPM
fwupd-1.1.4-9.el8_2.src.rpm SHA-256: f87cadd799211e8281b8e088534ee9d6e3d78ec6f8dcb48ebed7dc8d7ab67ccf
shim-15.4-2.el8_1.src.rpm SHA-256: 3bfc26de867105a4c11b7ad56cd82b1d649f45b5d6d51ad2b1474acd46c624f0
aarch64
fwupd-1.1.4-9.el8_2.aarch64.rpm SHA-256: 6f40797f6c79afee2ca1123b03ed049d1a2cb5740317402908ab9ec904f56064
fwupd-debuginfo-1.1.4-9.el8_2.aarch64.rpm SHA-256: 9867fbef7d54dc451e1e10787da9a4ba2e3be627b10a1f986c69e2e769e896c4
fwupd-debugsource-1.1.4-9.el8_2.aarch64.rpm SHA-256: 05720fb3e48db148b591d9f1adcbc2fe2b222cdb2f307cfeb13e55dbe55facbe
shim-aa64-15.4-2.el8_1.aarch64.rpm SHA-256: b97af00f72ced6bb75ac2c5eb1100b4a39fea8867d68e6d633ea89f187689439

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.2

SRPM
fwupd-1.1.4-9.el8_2.src.rpm SHA-256: f87cadd799211e8281b8e088534ee9d6e3d78ec6f8dcb48ebed7dc8d7ab67ccf
ppc64le
fwupd-1.1.4-9.el8_2.ppc64le.rpm SHA-256: a370a6b5341ff99b8203df3921de31f164a98a5b5d8331a0d91260e4799bd29d
fwupd-debuginfo-1.1.4-9.el8_2.ppc64le.rpm SHA-256: 86cef4c3f608dac7b1a5a00815667e367580389dcb68da51104badf6cffd142f
fwupd-debugsource-1.1.4-9.el8_2.ppc64le.rpm SHA-256: 514e5339431aa5593712ba05ab1f5f67c67073e9bfa443240301db605a3e4c80

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.2

SRPM
fwupd-1.1.4-9.el8_2.src.rpm SHA-256: f87cadd799211e8281b8e088534ee9d6e3d78ec6f8dcb48ebed7dc8d7ab67ccf
shim-15.4-2.el8_1.src.rpm SHA-256: 3bfc26de867105a4c11b7ad56cd82b1d649f45b5d6d51ad2b1474acd46c624f0
x86_64
fwupd-1.1.4-9.el8_2.x86_64.rpm SHA-256: e7e50e747ef5a8a8320020e27b3e76bd9fcac81c703e0f8007233c8e0fa3fef2
fwupd-debuginfo-1.1.4-9.el8_2.x86_64.rpm SHA-256: dbd5ba6ce3d32defb285c9117b519d5f9a86c92de383137d74e2114876b5e5e1
fwupd-debugsource-1.1.4-9.el8_2.x86_64.rpm SHA-256: 2662a5292fc0a1a25cc33ee6e7ea0728a95082982bbfdf16a52c3e57bb96dba6
shim-ia32-15.4-2.el8_1.x86_64.rpm SHA-256: 540fc6f47a51b210369e85517f70aba9e91b84acbc423f0c70f7653d1f357d71
shim-x64-15.4-2.el8_1.x86_64.rpm SHA-256: c5fb6e950b077770f207e29bb31e408739272058892ba8bf0066a9483575d306

Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 8.2

SRPM
shim-unsigned-x64-15.4-4.el8_1.src.rpm SHA-256: f242ffa36144ce21319270006d494640f8962b80bf8817eb681296432e99e8d7
x86_64
shim-unsigned-x64-15.4-4.el8_1.x86_64.rpm SHA-256: 9b3ed1bb26663c75308ce54966af6626a8597f224b0dd927c32a7e2655bd218b

Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 8.2

SRPM
shim-unsigned-aarch64-15-7.el8_1.src.rpm SHA-256: f1ee585a3fcf0b8a44808243839d7a2a9643e3dcb46d12dc0cfd32d7d2f66888
aarch64
shim-unsigned-aarch64-15-7.el8_1.aarch64.rpm SHA-256: 426b65bdbc5e280671385e544201edddff179aab64a77bfc0c52f4cfe6eb24fd

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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