Marcus Meissner, Author at SUSE Communities

March 8, 2022 12:58 pm

2,979 views

SUSE statement on “Dirty Pipe” attack

On Monday, March 7th, security researcher Max Kellermann published a new software vulnerability that affect users of the Linux Kernel. The vulnerability, called Dirty Pipe (CVE-2022-0847) , impacts Linux Kernels 5.8 and later, and allows local attackers to overwrite files even if they had only read permissions, allowing for easy privilege escalation. The issue is […]

By: Marcus Meissner

December 12, 2021 8:49 am

14,841 views

SUSE Statement on log4j / log4shell / CVE-2021-44228 / Vulnerability

On Friday December 10 morning a new exploit in "log4j" Java logging framework was reported, that can be trivially exploited. This vulnerability is caused by a new feature introduced in log4j 2.x versions where a specific string embedded in messages logged by log4j would be interpreted by log4j to connect to remote sites […]

Tags: CVE-2021-44228, log4j, log4shell

Categories: Compliance, Server, SUSE Linux Enterprise Server, SUSE Manager, Technical Solutions

By: Marcus Meissner

March 2, 2021 6:03 pm

1,700 views

SUSE addresses another grub2 UEFI secure boot security exposure

Various security researchers and the grub2 team have published more security issues in grub2 today, which can be used to bypass the UEFI secure boot chain. These security issues have the same scope as the BootHole issues from 2020. This attack requires root access to the bootloader used in Linux operating systems, GRUB2. It bypasses […]

By: Marcus Meissner

December 14, 2020 7:32 am

7,047 views

SUSE statement on Amnesia:33 vulnerabilities

Researchers from Forescout research labs have published a set of new software vulnerabilities that affect embedded TCP/IP stacks. The set of vulnerabilities, called AMNESIA:33, only affects small parts of the SUSE Linux Enterprise set of packages. The Linux Kernel TCP/IP implementation is not affected by these vulnerabilities, as it uses its own IP stack. The […]

By: Marcus Meissner

November 16, 2020 11:48 am

2,031 views

SUSE Releases Fix for SADDNS Vulnerability

Security researchers from University of California and Tsinghua University have identified a new variant of DNS cache poisoning attacks called SADDNS ("Side-channel AttackeD DNS") due to newly identified side channel attack against ICMP replies. This reappearance of the DNS cache poisoning attack allows remote attackers to pretend to be different hosts, if your […]

By: Marcus Meissner

November 10, 2020 6:31 pm

2,419 views

SUSE releases fixes for new PLATYPUS attack

Today security researchers from TU Graz have published a new side-channel information leak attack using power metering in modern Intel CPUs. With this side-channel attack on power consumption fluctuations it is possible to extract secret information on the same CPU, like for instance key material from SGX enclaves or the Linux kernel, or KASLR information […]

By: Marcus Meissner

October 15, 2020 3:16 pm

3,468 views

SUSE Releases Fixes for BleedingTooth Vulnerabilities

Yesterday evening, Google and Intel published a new set of software vulnerabilities that affect machines running Linux Kernels that use Bluetooth. The set of vulnerabilities, called BleedingTooth, impact SUSE Linux Enterprise systems with enabled Bluetooth hardware. There are 3 separate issues bundled into this set: CVE-2020-24490 (BadVibes): A heap overflow when processing extended advertising report […]

Categories: Server, SUSE Linux Enterprise Server

By: Marcus Meissner

September 17, 2020 1:37 pm

3,999 views

SUSE Addresses “ZeroLogon” Vulnerability

On September 11, Secura research published a new software vulnerability called “ZeroLogon”, which exploits a protocol weakness in the SMB Netlogon protocol. This vulnerability may affect users of SUSE Linux Enterprise Server running Samba servers in older or non-standard configurations. Attackers could use it to bypass access control to the domain controller. A workaround […]

By: Marcus Meissner

July 27, 2020 8:39 am

19,709 views

SUSE addresses BootHole security exposure

Security researchers from Eclypsium have published an attack called BootHole today. This attack requires root access to the bootloader used in Linux operating systems, GRUB2. It bypasses normal Secure Boot protections to persistently install malicious code which cannot be detected by the operating system. Given the need for root access to the bootloader, the described […]

By: Marcus Meissner

June 9, 2020 4:39 pm

3,767 views

SUSE addresses Special Register Buffer Data Sampling (SRBDS) aka CrossTalk attack

Today Intel and security researchers published a number of security issues covering various Intel hardware and software components in their IPU 2020.1 release. One of those issues is a side-channel information leak attack against special registers, like the Intel CPU random register. Memory can not be read out, only previously generated random values could […]

Author: Marcus Meissner

SUSE statement on “Dirty Pipe” attack

SUSE Statement on log4j / log4shell / CVE-2021-44228 / Vulnerability

SUSE addresses another grub2 UEFI secure boot security exposure

SUSE statement on Amnesia:33 vulnerabilities

SUSE Releases Fix for SADDNS Vulnerability

SUSE releases fixes for new PLATYPUS attack

SUSE Releases Fixes for BleedingTooth Vulnerabilities

SUSE Addresses “ZeroLogon” Vulnerability

SUSE addresses BootHole security exposure

SUSE addresses Special Register Buffer Data Sampling (SRBDS) aka CrossTalk attack

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