New Mirai Okiru Botnet targets devices running widely-used ARC Processors

The cybersecurity threat landscape has never been more extensive and is most likely to grow exponentially in 2018. Although the original creators of Mirai DDoS botnet have already been arrested and jailed, the variants of the infamous IoT malware are still in the game due to the availability of i...

MGASA-2018-0078 Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update provided the upstream 4.14.13 and fixes several security issues. The most important fix in this update is for the security issue named "Meltdown" that is fixed in theese kernels by enabling kernel Page Table Isolation KTPI. Note that according to AMD, this issue does not...

MGASA-2018-0075 Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update provides the upstream 4.4.111 and fixes several security issues. The most important fix in this update is for the security issue named "Meltdown" that is fixed in theese kernels by enabling kernel Page Table Isolation KTPI. Note that according to AMD, this issue does not...

Updated microcode packages fix security vulnerabilities

This update provides microcode fixes and mitigations for Spectre CVE-2017-5715 for many Intel CPUs produced in the last 5 years. So far the Intel microcode updates are for several processors from the Haswell, Broadwell, Skylake, Kaby Lake, Coffee Lake, Gemini Lake, Apollo Lake, Crystal Well and I...

MGASA-2018-0077 Updated kernel-tmb packages fix security vulnerabilities

This kernel-tmb update is based on the upstream 4.14.13 and fixes several security issues. The most important fix in this update is for the security issue named "Meltdown" that is fixed in theese kernels by enabling kernel Page Table Isolation KTPI. Note that according to AMD, this issue does not...

MGASA-2018-0076 Updated kernel packages fix security vulnerabilities

This kernel update is based on the upstream 4.14.13 and fixes several security issues. The most important fix in this update is for the security issue named "Meltdown" that is fixed in theese kernels by enabling kernel Page Table Isolation KPTI. Note that according to AMD, this issue does not...

Updated kernel packages fix security vulnerabilities

This kernel update is based on the upstream 4.14.13 and fixes several security issues. The most important fix in this update is for the security issue named "Meltdown" that is fixed in theese kernels by enabling kernel Page Table Isolation KPTI. Note that according to AMD, this issue does not...

Updated kernel-tmb packages fix security vulnerabilities

This kernel-tmb update is based on the upstream 4.4.111 and fixes several security issues. The most important fix in this update is for the security issue named "Meltdown" that is fixed in theese kernels by enabling kernel Page Table Isolation KTPI. Note that according to AMD, this issue does not...

MGASA-2018-0079 Updated microcode packages fix security vulnerabilities

This update provides microcode fixes and mitigations for Spectre CVE-2017-5715 for many Intel CPUs produced in the last 5 years. So far the Intel microcode updates are for several processors from the Haswell, Broadwell, Skylake, Kaby Lake, Coffee Lake, Gemini Lake, Apollo Lake, Crystal Well and I...

Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update provides the upstream 4.4.111 and fixes several security issues. The most important fix in this update is for the security issue named "Meltdown" that is fixed in theese kernels by enabling kernel Page Table Isolation KTPI. Note that according to AMD, this issue does not...

Intel AMT Loophole Allows Hackers to Gain Control of Some PCs in Under a Minute

Researchers have found a loophole in Intel processors that allow an attacker to bypass logins and place backdoors on laptops, allowing adversaries remote access to laptops. Researchers at F-Secure, that first identified the attack strategy, say the loophole can be exploited in less than one minut...

Meltdown and Spectre fallout: patching problems persist

Last week, the disclosure by multiple teams from Graz and Pennsylvania University, Rambus, Data61, Cyberus Technology, and Google Project Zero of vulnerabilities under the aliases Meltdown and Spectre rocked the security world, sending vendors scurrying to create patches, if at all possible, and...

Debian DSA-4082-1 : linux - security update (Meltdown)

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. - CVE-2017-5754 Multiple researchers have discovered a vulnerability in Intel processors, enabling an attacker controlling an unprivileged process to...

Anti-Virus Updates Required Ahead of Microsoft’s Meltdown, Spectre Patches

Microsoft said it is holding off delivering security updates to Windows PCs for Spectre and Meltdown CPU flaws until hosted anti-virus software confirms it does not make unsupported calls into Windows kernel memory. Affected are PCs running certain AV products that bypass Windows built-in Kernel...

January 3, 2018—KB4056890 (OS Build 14393.2007)

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January 3, 2018—KB4056892 (OS Build 16299.192)

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January 3, 2018—KB4056888 (OS Build 10586.1356)

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The vulnerabilities of Intel, ARM, and AMD processors stem from the unique workings of the branch prediction module, which allows attackers to exploit the protected information.

The vulnerabilities of Intel, ARM, and AMD processors are related to the characteristics of the branch prediction module’s operation. Exploiting these vulnerabilities allows attackers to gain access to protected memory from a program that does not have the necessary privileges, by creating...

The vulnerability of Intel and ARM processors is caused by a memory access control error during speculative execution of processor instructions, allowing attackers to disclose protected information.

The vulnerabilities of Intel and ARM processors stem from errors in memory access control during speculative execution of processor instructions. Exploiting these vulnerabilities allows attackers to gain access to protected memory from a program that does not have the necessary privileges. This i...

Meltdown and Spectre

Cisco Talos is aware of three new vulnerabilities impacting Intel, AMD, Qualcomm and ARM processors used by almost all computers. We are investigating these issues and although we have not observed exploitation of these vulnerabilities in the wild, that does not mean that it has not occurred. We...