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Price Tag 1security advisorybuffer overflowRed Hat Enterprise Linux

Red Hat Enterprise Linux 8.1 RHSA-2022-5098-01 Important Grub2 Security

An update for grub2, mokutil, and shim is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: grub2, mokutil, and shim security update Advisory ID: RHSA-2022:5098-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:5098 Issue date: 2022-06-16 CVE Names: CVE-2021-3695 CVE-2021-3696 CVE-2021-3697 CVE-2022-28733 CVE-2022-28734 CVE-2022-28735 CVE-2022-28736 CVE-2022-28737 ==================================================================== 1. Summary: An update for grub2, mokutil, and shim is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. 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. 2. Relevant releases/architectures: Red Hat Enterprise Linux BaseOS E4S (v. 8.1) - aarch64, noarch, ppc64le, x86_64 3. Description: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. The shim package contains a first-stage UEFI boot loader that handles chaining to a trusted full boot loader under secure boot environments. Security Fix(es): * grub2: Integer underflow in grub_net_recv_ip4_packets (CVE-2022-28733) * grub2: Crafted PNG grayscale images may lead to out-of-bounds writein heap (CVE-2021-3695) * grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling (CVE-2021-3696) * grub2: Crafted JPEG image can lead to buffer underflow write in the heap (CVE-2021-3697) * grub2: Out-of-bound write when handling split HTTP headers(CVE-2022-28734) * grub2: shim_lock verifier allows non-kernel files to be loaded (CVE-2022-28735) * grub2: use-after-free in grub_cmd_chainloader() (CVE-2022-28736) * shim: Buffer overflow when loading crafted EFI images (CVE-2022-28737) 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. 4. 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 5. Bugs fixed (https://bugzilla.redhat.com/): 1991685 - CVE-2021-3695 grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap 1991686 - CVE-2021-3696 grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling 1991687 - CVE-2021-3697 grub2: Crafted JPEG image can lead to buffer underflow write in the heap 2083339 - CVE-2022-28733 grub2: Integer underflow in grub_net_recv_ip4_packets 2090463 - CVE-2022-28734 grub2: Out-of-bound write when handling split HTTP headers2090857 - CVE-2022-28735 grub2: shim_lock verifier allows non-kernel files to be loaded 2090899 - CVE-2022-28737 shim: Buffer overflow when loading crafted EFI images 2092613 - CVE-2022-28736 grub2: use-after-free in grub_cmd_chainloader() 6. Package List: Red Hat Enterprise Linux BaseOS E4S (v.8.1): Source: grub2-2.02-87.el8_1.10.src.rpm mokutil-0.3.0-9.el8_1.1.src.rpm shim-15.6-1.el8.src.rpm aarch64: grub2-debuginfo-2.02-87.el8_1.10.aarch64.rpm grub2-debugsource-2.02-87.el8_1.10.aarch64.rpm grub2-efi-aa64-2.02-87.el8_1.10.aarch64.rpm grub2-efi-aa64-cdboot-2.02-87.el8_1.10.aarch64.rpm grub2-tools-2.02-87.el8_1.10.aarch64.rpm grub2-tools-debuginfo-2.02-87.el8_1.10.aarch64.rpm grub2-tools-extra-2.02-87.el8_1.10.aarch64.rpm grub2-tools-extra-debuginfo-2.02-87.el8_1.10.aarch64.rpm grub2-tools-minimal-2.02-87.el8_1.10.aarch64.rpm grub2-tools-minimal-debuginfo-2.02-87.el8_1.10.aarch64.rpm mokutil-0.3.0-9.el8_1.1.aarch64.rpm mokutil-debuginfo-0.3.0-9.el8_1.1.aarch64.rpm mokutil-debugsource-0.3.0-9.el8_1.1.aarch64.rpm shim-aa64-15.6-1.el8.aarch64.rpm noarch: grub2-common-2.02-87.el8_1.10.noarch.rpm grub2-efi-aa64-modules-2.02-87.el8_1.10.noarch.rpm grub2-efi-ia32-modules-2.02-87.el8_1.10.noarch.rpm grub2-efi-x64-modules-2.02-87.el8_1.10.noarch.rpm grub2-pc-modules-2.02-87.el8_1.10.noarch.rpm grub2-ppc64le-modules-2.02-87.el8_1.10.noarch.rpm ppc64le: grub2-debuginfo-2.02-87.el8_1.10.ppc64le.rpm grub2-debugsource-2.02-87.el8_1.10.ppc64le.rpm grub2-ppc64le-2.02-87.el8_1.10.ppc64le.rpm grub2-tools-2.02-87.el8_1.10.ppc64le.rpm grub2-tools-debuginfo-2.02-87.el8_1.10.ppc64le.rpm grub2-tools-extra-2.02-87.el8_1.10.ppc64le.rpm grub2-tools-extra-debuginfo-2.02-87.el8_1.10.ppc64le.rpm grub2-tools-minimal-2.02-87.el8_1.10.ppc64le.rpm grub2-tools-minimal-debuginfo-2.02-87.el8_1.10.ppc64le.rpm x86_64: grub2-debuginfo-2.02-87.el8_1.10.x86_64.rpm grub2-debugsource-2.02-87.el8_1.10.x86_64.rpm grub2-efi-ia32-2.02-87.el8_1.10.x86_64.rpm grub2-efi-ia32-cdboot-2.02-87.el8_1.10.x86_64.rpm grub2-efi-x64-2.02-87.el8_1.10.x86_64.rpm grub2-efi-x64-cdboot-2.02-87.el8_1.10.x86_64.rpm grub2-pc-2.02-87.el8_1.10.x86_64.rpm grub2-tools-2.02-87.el8_1.10.x86_64.rpm grub2-tools-debuginfo-2.02-87.el8_1.10.x86_64.rpm grub2-tools-efi-2.02-87.el8_1.10.x86_64.rpm grub2-tools-efi-debuginfo-2.02-87.el8_1.10.x86_64.rpm grub2-tools-extra-2.02-87.el8_1.10.x86_64.rpm grub2-tools-extra-debuginfo-2.02-87.el8_1.10.x86_64.rpm grub2-tools-minimal-2.02-87.el8_1.10.x86_64.rpm grub2-tools-minimal-debuginfo-2.02-87.el8_1.10.x86_64.rpm mokutil-0.3.0-9.el8_1.1.x86_64.rpm mokutil-debuginfo-0.3.0-9.el8_1.1.x86_64.rpm mokutil-debugsource-0.3.0-9.el8_1.1.x86_64.rpm shim-ia32-15.6-1.el8.x86_64.rpm shim-x64-15.6-1.el8.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2021-3695 https://access.redhat.com/security/cve/CVE-2021-3696 https://access.redhat.com/security/cve/CVE-2021-3697 https://access.redhat.com/security/cve/CVE-2022-28733 https://access.redhat.com/security/cve/CVE-2022-28734 https://access.redhat.com/security/cve/CVE-2022-28735 https://access.redhat.com/security/cve/CVE-2022-28736 https://access.redhat.com/security/cve/CVE-2022-28737 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYqtvZtzjgjWX9erEAQiqow/+IcUOf0BCPaIaF7Wfx3FzqT1UPNeHz7oe OIN8sDIpQAQRnNC7abh4Y10xZY/iBq9KzGMllLI95J680QeAsfRGHI/FOuAjE8mH dFDFjJPf368OCBlucD4ER3bOh/Z8qmCtiL+udaiXI3tOn9v2jCyAZU5l6XLkUMmM rwTSNejOkLFlZZSbOvsj7HPGovvSRwaeWyP8HSsB/x8ZxATV9hnWFxgzPShdc4Av Guo+e5Ox5kCsYUMx+JaLTB5f0r84Ww/JF/yC54+7GaJjKqfOn/fBZve6x8EpMlzH p6hiYoc0H3w4Q8dt64Dy84YBxd2lab1yf78P6wnfIc8DbJLk8WEiGFHXgztUcoSF zPHzy3KvdRjm0VbsHv6zos+vw6xk853lk7x1VC+hfzwX8k+v6qjLQVWe6o0Bgbr1 uddxC4FS8q9IimrBIOdQMFgAB2EHlkQ6+rtAMEnrQl7FNuc+01bfqAzlSxST5whA tmDHTn+yfAq8IZxme9fUB0IWPE6B7X9BuFOEUJXoDA7a32XNBh7rxZMKM8Qvik2m f6wFbeOMUP1qH5aI5q7w7gjDALZYCjkm6G4PZIzPe7b5d776oVTi6LVLrNqoF3iS YSoJcfgbAD/z4vhD7+v8jchsKajLhfU6cg1Y55tCaWE+ChZX5gxxg9np2RimQUKg OSDo4rO0XWs=U5j2 -----END PGP SIGNATURE----- -- RHSA-announce mailinglist This email address is being protected from spambots. You need JavaScript enabled to view it. . Crucial security patch available for grub2 and mokutil in Red Hat Enterprise Linux, mitigating various detected vulnerabilities.. Red Hat Security Update, Grub2 Patch, Mokutil Fix, Linux Security Advisory. . Severity: Important. LinuxSecurity.com Team

Calendar 2 Jun 16, 2022 •Important Red Hat
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Ls Advisories Oracle Esm H240
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Oracle Linux 8 ELSA-2022-9465 Important Shim Update for Security

The following updated rpms for Oracle Linux 8 have been uploaded to the Unbreakable Linux Network: . Oracle Linux Security Advisory ELSA-2022-9465 https://linux.oracle.com/errata/ELSA-2022-9465.html The following updated rpms for Oracle Linux 8 have been uploaded to the Unbreakable Linux Network: x86_64: shim-ia32-15.6-1.0.3.el8.x86_64.rpm shim-x64-15.6-1.0.3.el8.x86_64.rpm aarch64: SRPMS: https://oss.oracle.com:443/ol8/SRPMS-updates/shim-15.6-1.0.3.el8.src.rpm Related CVEs: CVE-2022-28737 Description of changes: [15.6-1.0.3] - Update shimx64.efi and shimia32.efi signed by Microsoft [JIRA: OLDIS-16370] [15.6-1.0.2] - Update to shim-unsigned v15.6.rc2 [JIRA: OLDIS-16370] [15.6-1.0.1] - Update to shim-unsigned v15.6.rc1 [JIRA: OLDIS-16370] [15.5-1.0.3] - Update vendor certs [JIRA: OLDIS-16370] - Update oracle(grub2-sig-key) [JIRA: OLDIS-16370] [15.5-1.0.1] - Allow MokListTrusted to be enabled by default [Orabug: 33770149] - Add patchset to load additional certificates from vendor signed EFI binary [Orabug: 33770149] _______________________________________________ El-errata mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. https://oss.oracle.com/mailman/listinfo/el-errata . CentOS Linux ELSA-2022-9473 introduces critical kernel patches to bolster security mechanisms and safeguard infrastructures.. Oracle Linux, Enhanced Security, ELSA-2022-9465, RPM Update, Shim Update. . Severity: Important. LinuxSecurity.com Team

Calendar 2 Jun 07, 2022 •Important Oracle
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