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CVE-2020-14309

Status Candidate

Overview

There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data.

Related Files

Gentoo Linux Security Advisory 202104-05
Posted May 3, 2021
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202104-5 - Multiple vulnerabilities have been found in GRUB, the worst might allow for circumvention of UEFI Secure Boot. Versions less than 2.06_rc1 are affected.

tags | advisory, vulnerability
systems | linux, gentoo
advisories | CVE-2020-10713, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-14372, CVE-2020-15705, CVE-2020-15706, CVE-2020-15707, CVE-2020-25632, CVE-2020-25647, CVE-2020-27749, CVE-2020-27779, CVE-2021-20225, CVE-2021-20233
MD5 | 8cc497c35fa19595a39d6cbcaef63e9d
Red Hat Security Advisory 2020-3274-01
Posted Aug 3, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3274-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. The fwupdate packages provide a service that allows session software to update device firmware. Issues addressed include buffer overflow, code execution, integer overflow, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-10713, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-15705, CVE-2020-15706, CVE-2020-15707
MD5 | ae1b955ee958d7f8ad89bc212320bd0c
Red Hat Security Advisory 2020-3276-01
Posted Aug 3, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3276-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. Issues addressed include buffer overflow, code execution, integer overflow, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-10713, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-15705, CVE-2020-15706, CVE-2020-15707
MD5 | d3001357ec951e526857319cbc73bec5
Red Hat Security Advisory 2020-3271-01
Posted Aug 3, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3271-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. The fwupdate packages provide a service that allows session software to update device firmware. Issues addressed include buffer overflow, code execution, integer overflow, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-10713, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-15705, CVE-2020-15706, CVE-2020-15707
MD5 | 0c737d94583cf9484cdc1f7bde1829f9
Red Hat Security Advisory 2020-3275-01
Posted Aug 3, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3275-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. The fwupdate packages provide a service that allows session software to update device firmware. Issues addressed include buffer overflow, code execution, integer overflow, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-10713, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-15705, CVE-2020-15706, CVE-2020-15707
MD5 | b1c15450274a68d8c6f86e9762996426
Red Hat Security Advisory 2020-3273-01
Posted Aug 3, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3273-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. Issues addressed include buffer overflow, code execution, integer overflow, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-10713, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-15705, CVE-2020-15706
MD5 | 0302d0ef02850a9fe8be92b2b6336d8a
Red Hat Security Advisory 2020-3227-01
Posted Jul 30, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3227-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. The fwupd packages provide a service that allows session software to update device firmware. Issues addressed include buffer overflow, code execution, integer overflow, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-10713, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-15705, CVE-2020-15706, CVE-2020-15707
MD5 | fa976cb619e24d2d351796191c282d01
Red Hat Security Advisory 2020-3223-01
Posted Jul 30, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3223-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. The fwupd packages provide a service that allows session software to update device firmware. Issues addressed include buffer overflow, code execution, integer overflow, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-10713, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-15705, CVE-2020-15706, CVE-2020-15707
MD5 | d0fc26d05115384086fc4a4065fd2e62
Red Hat Security Advisory 2020-3217-01
Posted Jul 30, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3217-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. The fwupdate packages provide a service that allows session software to update device firmware. Issues addressed include buffer overflow, code execution, integer overflow, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-10713, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-15705, CVE-2020-15706, CVE-2020-15707
MD5 | 8fc53efa0fb476b2f33a9f74f3f9198a
Red Hat Security Advisory 2020-3216-01
Posted Jul 30, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3216-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, 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. The fwupd packages provide a service that allows session software to update device firmware. Issues addressed include buffer overflow, code execution, integer overflow, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-10713, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-15705, CVE-2020-15706, CVE-2020-15707
MD5 | 70bea9538d5a1da61e92d2182cd8ad0f
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