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-2022-28734

CVE-2022-28734 is an out-of-bounds write in grub2 related to handling split HTTP headers. The root cause is that grub2’s HTTP parsing moves an internal buffer pointer by one position when processing split headers, which can lead to writing a NULL byte past the buffer and corrupt memory metadata. ...

CVE-2022-28734 Out-of-bounds write when handling split HTTP headers

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-2022-28734

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: Use After Free

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...

CVE-2022-28734: Out-of-bounds Write

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: Undefined Security Weakness

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...

Amazon Linux 2 : grub2 (ALAS-2023-2146)

The version of grub2 installed on the remote host is prior to 2.06-14. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-2146 advisory. A flaw was found in grub 2, where a crafted 16-bit grayscale PNG image may lead to an out-of-bounds write. This flaw allows ...

Important: grub2

Issue Overview: A flaw was found in grub 2, where a crafted 16-bit grayscale PNG image may lead to an out-of-bounds write. This flaw allows an attacker to corrupt the data on the heap portion of the grub2's memory, leading to possible code execution and the circumvention of the secure boot...

CVE-2022-3775 affecting package grub2 for versions less than 2.06-10

CVE-2022-3775 affecting package grub2 for versions less than 2.06-10. A patched version of the package is available...

F5 Networks BIG-IP : Grub2 vulnerability (K000130541)

The version of F5 Networks BIG-IP installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the K000130541 advisory. - grub2: Out-of-bound write when handling split HTTP headers CVE-2022-28734 Note that Nessus has not tested for this...

F5 Networks BIG-IP : GRUB2 vulnerability (K000132893)

The version of F5 Networks BIG-IP installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the K000132893 advisory. - Integer underflow in grubnetrecvip4packets; A malicious crafted IP packet can lead to an integer underflow in...

grub2 security update

2.06-46.0.4.el91.3 - Bump SBAT metadata for grub to 3 Orabug: 34872719 - Fix CVE-2022-3775 Orabug: 34871953 - Enable signing for aarch64 EFI - Fix signing certificate names - Enable back btrfs grub module for EFI pre-built image Orabug: 34360986 - Replaced bugzilla.oracle.com references Orabug:...

Oracle Linux 9 : grub2 (ELSA-2023-0752)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-0752 advisory. - Fix CVE-2022-3775 Orabug: 34871953 - Resolves: CVE-2022-2601 Tenable has extracted the preceding description block directly from the Oracle Linux...

Huawei EulerOS: Security Advisory for grub2 (EulerOS-SA-2023-2239)

The remote host is missing an update for the Huawei EulerOS 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...

Huawei EulerOS: Security Advisory for grub2 (EulerOS-SA-2023-2043)

The remote host is missing an update for the Huawei EulerOS 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...

Huawei EulerOS: Security Advisory for grub2 (EulerOS-SA-2023-2095)

The remote host is missing an update for the Huawei EulerOS 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...

EulerOS Virtualization 2.11.0 : grub2 (EulerOS-SA-2023-2095)

According to the versions of the grub2 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - A flaw in grub2 was found where its configuration file, known as grub.cfg, is being created with the wrong permission set allowing...

Oracle Linux 8 : grub2 (ELSA-2022-9471)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-9471 advisory. - Add CVE-2022-28736 to the list JIRA: OLDIS-16371 - Fix: CVE-2021-3695, CVE-2021-3696, CVE-2021-3697, CVE-2022-28733, CVE-2022-28734, CVE-2022-28735...

Huawei EulerOS: Security Advisory for grub2 (EulerOS-SA-2023-1920)

The remote host is missing an update for the Huawei EulerOS 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...