CVE-2022-21499

KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown. An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.7...

CVE-2022-21499

CVE-2022-21499: KGDB/KDB can read/write kernel memory if lockdown is triggered; attacker with serial-port access could trigger debugger. Connected advisories reiter the risk and note the need to ensure lockdown mode is respected, but do not specify a patched version or remediation beyond that. Th...

Ubuntu 16.04 ESM : Linux kernel vulnerabilities (USN-5465-1)

The remote Ubuntu 16.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5465-1 advisory. It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged...

Ubuntu 22.04 LTS : Linux kernel (OEM) vulnerabilities (USN-5471-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5471-1 advisory. It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged...

Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-5470-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-5470-1 advisory. It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker cou...

BigBlueButton 授权问题漏洞

BigBlueButton is an open source Web conferencing system from the BigBlueButton community. bigBlueButton has an authorization issue vulnerability that can be exploited by attackers to send messages to locked chats within a 5s grace period after lockdown settings take effect...

Updated kernel packages fix security vulnerabilities

This kernel update is based on upstream 5.15.43 and fixes at least the following security issues: A race condition in the perf subsystem allows for a local privilege escalation. NOTE: Mageia kernels by default has disabled the perf usage for unprivileged users, effectively rendering this...

MGASA-2022-0212 Updated kernel packages fix security vulnerabilities

This kernel update is based on upstream 5.15.43 and fixes at least the following security issues: A race condition in the perf subsystem allows for a local privilege escalation. NOTE: Mageia kernels by default has disabled the perf usage for unprivileged users, effectively rendering this...

CVE-2022-21499

KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown. An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.7...

UBUNTU-CVE-2022-21499

KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown. An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.7...

PT-2022-4133 · Linux +9 · Linux Kernel +9

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the insecure management of privileges when loading the KGDB and KDB debugging tools in Linux kernel's Lockdown Mode. This could allow an attacker to bypass...

Unbreakable Enterprise kernel security update

4.14.35-2047.513.2.2 - debug: Lock down kgdb Stephen Brennan Orabug: 34152700 CVE-2022-21499...

Unbreakable Enterprise kernel-container security update

5.4.17-2136.307.3.4 - iouring: always use original task when preparing req identity Jens Axboe Orabug: 34186552 CVE-2022-1786 5.4.17-2136.307.3.3 - debug: Lock down kgdb Stephen Brennan Orabug: 34152699 CVE-2022-21499...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2022-9426)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-9426 advisory. - iouring: always use original task when preparing req identity Jens Axboe Orabug: 34186552 CVE-2022-1786 Tenable has extracted the preceding...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2022-9425)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-9425 advisory. - iouring: always use original task when preparing req identity Jens Axboe Orabug: 34186552 CVE-2022-1786 Tenable has extracted the preceding...

Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2022-9423)

The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2022-9423 advisory. 4.14.35-2047.513.2.2 - debug: Lock down kgdb Stephen Brennan Orabug: 34152700 CVE-2022-21499 Tenable has extracted the preceding description block directly from...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2022-9422)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2022-9422 advisory. 4.1.12-124.62.3.1 - debug: Lock down kgdb Stephen Brennan Orabug: 34152701 CVE-2022-21499 Tenable has extracted the preceding description block directly fro...

Oracle Linux 7 : Unbreakable Enterprise kernel-container (ELSA-2022-9427)

The remote Oracle Linux 7 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2022-9427 advisory. 4.14.35-2047.513.2.2.el7 - debug: Lock down kgdb Stephen Brennan Orabug: 34152700 CVE-2022-21499 Tenable has extracted the preceding description block directly...

How to Limit Who Can Contact You on Twitter

Lock down your account to tweet in peace or take the guardrails off to court controversy...

Entering a Higher State of Vigilance – Ukraine Under Attack

It appears that Russia has just commenced the invasion of Ukraine. Check your preferred international news outlet, but according to the Ukrainian foreign minister "Putin has just launched a full-scale invasion of Ukraine." Ukrainian airspace is closed with flights diverting. The Twitter Safety...