CVE-2021-3696

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Summary

CVECVE-2021-3696
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-07-06 16:15:00 UTC
Updated2023-09-13 16:15:00 UTC
DescriptionA heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.

Risk And Classification

Problem Types: CWE-787

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gnu Grub All All All All
Application Gnu Grub2 All All All All
Application Netapp Ontap Select Deploy Administration Utility - All All All
Application Redhat Codeready Linux Builder - All All All
Application Redhat Developer Tools 1.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux 9.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux 8.1 All All All
Operating System Redhat Enterprise Linux 8.4 All All All
Operating System Redhat Enterprise Linux 9.0 All All All
Operating System Redhat Enterprise Linux Eus 8.2 All All All
Operating System Redhat Enterprise Linux Eus 8.4 All All All
Operating System Redhat Enterprise Linux Eus 8.6 All All All
Operating System Redhat Enterprise Linux Eus 9.0 All All All
Operating System Redhat Enterprise Linux Eus 8.2 All All All
Operating System Redhat Enterprise Linux Eus 8.4 All All All
Operating System Redhat Enterprise Linux Eus 8.6 All All All
Operating System Redhat Enterprise Linux Eus 9.0 All All All
Operating System Redhat Enterprise Linux For Power Little Endian 8.0 All All All
Operating System Redhat Enterprise Linux For Power Little Endian 9.0 All All All
Operating System Redhat Enterprise Linux For Power Little Endian Eus 8.2 All All All
Operating System Redhat Enterprise Linux For Power Little Endian Eus 8.4 All All All
Operating System Redhat Enterprise Linux For Power Little Endian Eus 8.6 All All All
Operating System Redhat Enterprise Linux For Power Little Endian Eus 9.0 All All All
Operating System Redhat Enterprise Linux Server Aus 8.2 All All All
Operating System Redhat Enterprise Linux Server Aus 8.4 All All All
Operating System Redhat Enterprise Linux Server Aus 8.6 All All All
Operating System Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 8.1 All All All
Operating System Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 8.2 All All All
Operating System Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 8.4 All All All
Operating System Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 8.6 All All All
Operating System Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 9.0 All All All
Operating System Redhat Enterprise Linux Server Tus 8.2 All All All
Operating System Redhat Enterprise Linux Server Tus 8.4 All All All
Operating System Redhat Enterprise Linux Server Tus 8.6 All All All
Application Redhat Openshift 3.0 All All All
Application Redhat Openshift Container Platform 4.10 All All All
Application Redhat Openshift Container Platform 4.6 All All All
Application Redhat Openshift Container Platform 4.9 All All All

References

ReferenceSourceLinkTags
July 2022 Grub Vulnerabilities in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
1991686 – (CVE-2021-3696) CVE-2021-3696 grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling MISC bugzilla.redhat.com
GRUB: Multiple Vulnerabilities (GLSA 202209-12) — Gentoo security GENTOO security.gentoo.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159883 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-9471)
  • 159884 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-9469)
  • 159943 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-5099)
  • 159967 Oracle Enterprise Linux Security Update for grub2, mokutil, shim, and shim-unsigned-x64 (ELSA-2022-5095)
  • 159985 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-9596)
  • 159986 Oracle Enterprise Linux Security Update for grub2 (ELSA-2022-9595)
  • 161027 Oracle Enterprise Linux Security Update for grub2 (ELSA-2023-12952)
  • 181019 Debian Security Update for grub2 (CVE-2021-3696)
  • 240473 Red Hat Update for grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5100)
  • 240474 Red Hat Update for grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5099)
  • 240476 Red Hat Update for grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5096)
  • 240477 Red Hat Update for grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5095)
  • 282811 Fedora Security Update for grub2 (FEDORA-2022-27932fdd06)
  • 282866 Fedora Security Update for grub2 (FEDORA-2022-9b4f9af4ce)
  • 354332 Amazon Linux Security Advisory for grub2 : ALAS2022-2022-109
  • 354535 Amazon Linux Security Advisory for grub2 : ALAS-2022-109
  • 355137 Amazon Linux Security Advisory for grub2 : ALAS2023-2023-020
  • 355617 Amazon Linux Security Advisory for grub2 : ALAS2-2023-2146
  • 377130 Alibaba Cloud Linux Security Update for grub2, mokutil, shim, and shim-unsigned-x64 (ALINUX3-SA-2022:0134)
  • 377622 Alibaba Cloud Linux Security Update for grub2, mokutil, shim, and shim-unsigned-x64 (ALINUX3-SA-2022:0164)
  • 672021 EulerOS Security Update for grub2 (EulerOS-SA-2022-2242)
  • 672026 EulerOS Security Update for grub2 (EulerOS-SA-2022-2221)
  • 672031 EulerOS Security Update for grub2 (EulerOS-SA-2022-2255)
  • 672032 EulerOS Security Update for grub2 (EulerOS-SA-2022-2268)
  • 672109 EulerOS Security Update for grub2 (EulerOS-SA-2022-2318)
  • 672131 EulerOS Security Update for grub2 (EulerOS-SA-2022-2289)
  • 672248 EulerOS Security Update for grub2 (EulerOS-SA-2022-2611)
  • 710619 Gentoo Linux GRUB Multiple Vulnerabilities (GLSA 202209-12)
  • 752214 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2037-1)
  • 752215 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2041-1)
  • 752216 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2036-1)
  • 752217 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2035-1)
  • 752218 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2038-1)
  • 752221 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2064-1)
  • 752229 SUSE Enterprise Linux Security Update for grub2 (SUSE-SU-2022:2074-1)
  • 907536 Common Base Linux Mariner (CBL-Mariner) Security Update for grub2 (31035-1)
  • 940639 AlmaLinux Security Update for grub2, (ALSA-2022:5095)
  • 940640 AlmaLinux Security Update for grub2, (ALSA-2022:5099)
  • 960155 Rocky Linux Security Update for grub2, (RLSA-2022:5095)
  • 960538 Rocky Linux Security Update for grub2, (RLSA-2022:5099)
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