Ubuntu 20.04 LTS / 22.04 LTS : GRUB2 vulnerabilities (USN-6355-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6355-1 advisory. Daniel Axtens discovered that specially crafted images could cause a heap-based out-of-bonds write. A local attacker could possibly use this ...

Ubuntu: Security Advisory (USN-6355-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Oracle Linux 7 : grub2 (ELSA-2020-5790)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5790 advisory. - Fix CVE-2020-10713, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-15705, CVE-2020-15706, CVE-2020-15707 Orabug: 31225072...

Important Photon OS Security Update - PHSA-2023-3.0-0643

Updates of 'elfutils', 'grub2', 'binutils' packages of Photon OS have been released...

Important Photon OS Security Update - PHSA-2023-4.0-0459

Updates of 'chromium', 'grub2' packages of Photon OS have been released...

Important Photon OS Security Update - PHSA-2023-4.0-0439

Updates of 'pcre2', 'grub2' packages of Photon OS have been released...

Important Photon OS Security Update - PHSA-2023-3.0-0620

Updates of 'wireshark', 'lua', 'grub2' packages of Photon OS have been released...

Important Photon OS Security Update - PHSA-2023-4.0-0436

Updates of 'linux-aws', 'linux-rt', 'wireshark', 'openssl', 'grub2', 'linux-secure' packages of Photon OS have been released...

Critical Photon OS Security Update - PHSA-2023-3.0-0617

Updates of 'openresty', 'grub2', 'perl', 'mysql' packages of Photon OS have been released...

CVE-2022-28735

The GRUB2's shimlock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain...

DEBIAN-CVE-2022-28735

The GRUB2's shimlock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain...

AZL-27553 CVE-2022-28733 affecting package grub2 for versions less than 2.06-12

Integer underflow in grubnetrecvip4packets; A malicious crafted IP packet can lead to an integer underflow in grubnetrecvip4packets function on rsm-totallen value. Under certain circumstances the totallen value may end up wrapping around to a small integer number which will be used in memory...

CVE-2022-28734

Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buffer. It's...

CVE-2022-28735

The GRUB2's shimlock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain...

CVE-2022-28734

Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buffer. It's...

CVE-2022-28736

There's a use-after-free vulnerability in grubcmdchainloader function; The chainloader command is used to boot up operating systems that doesn't support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerability is triggered. If a...

Code injection

The GRUB2's shimlock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain...

CVE-2022-28735

The GRUB2's shimlock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain...

Design/Logic Flaw

There's a use-after-free vulnerability in grubcmdchainloader function; The chainloader command is used to boot up operating systems that doesn't support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerability is triggered. If a...

Design/Logic Flaw

Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buffer. It's...