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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
SHA-256 | 299d3aa5f1947d880973d356a72e943ce929b133f553e466d411763947ccd7a7
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
SHA-256 | 144bbd79ffcbfffe93acfa603f4d913fb593155ea1a5321f40f37fb8fa61f025
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
SHA-256 | 197b0d3e9e5eb14812b23bed10cf9474e30c65c53e0f2ec81dcbce0b0cb9d863
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
SHA-256 | b3bf571485b358a2434b6042dc22556c9f139dd122fad7da04702eb958284484
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
SHA-256 | 2b41ed000071cbda794590471814d6e108611955697108378e26aaa6a96b2291
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
SHA-256 | 47bfe35d5b45522fcb69078dabbdb6694c53947ba83cbdb8ecfe62cbd0a4c145
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
SHA-256 | 02bb599d5c930a28ff39fd83bd07305a20029bdd880ba0f33e78536686a873b6
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
SHA-256 | 853c8e6c7fd90e574532c678b43f0666aa050b001aa9278f07ba2f218a87698f
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
SHA-256 | 05b381f567de5c663580937c24b12d2dc62a25e2d9855d3b4aef8f9ed69b2f13
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
SHA-256 | 4c3a209e8d0a3af677696ed8c4b547ad40df838fe881de0e5d715179980dbd6e
Debian Security Advisory 4735-1
Posted Jul 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4735-1 - Several vulnerabilities have been discovered in the GRUB2 bootloader.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2020-10713, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-15706, CVE-2020-15707
SHA-256 | 0489780ea603f6a8c62138bcb5f2cc7e99d7c9e3609f2434fe116db8d210c504
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