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    Severity Medium Analysis Summary Rhadamanthys is a type of malware known as a stealer, which is designed to steal sensitive information from infected computers. It was […]
    March 21, 2023
    March 21, 2023
    Rewterz Threat Alert – Mirai Botnet aka Katana – Active IOCs
    Severity High Analysis Summary The Mirai botnet is a type of malware that infects Internet of Things (IoT) devices, such as routers, security cameras, and other […]
    March 21, 2023
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    Rewterz Threat Alert – LockBit Ransomware – Active IOCs
    Severity High Analysis Summary LockBit ransomware takes as little as five minutes to deploy the encryption routine on target systems once it lands on the victim […]

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    16
    pdf-file (1)
    Annual Threat Intelligence Report 2022
    • Threat Advisories
    • Monthly Threat Insights
    • Threat Intelligence Reports
  • Why Rewterz?

    About Us

    Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.

    Read More

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    Our leadership team brings together years of knowledge and experience in cybersecurity to drive our company's mission and vision. Our team is passionate about delivering high-quality products and services, leading by example and assisting our clients in securing their organization’s environment.
    help

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    At Rewterz, we believe that businesses have a responsibility to impact positively and contribute to the well-being of our communities as well as the planet. That's why we are committed to operating in a socially responsible and sustainable way.

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Rewterz Threat Advisory – Red Hat update for libreoffice
November 5, 2018
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Rewterz Threat Advisory – Intel CPUs hyper-threading PortSmash Vulnerability
November 5, 2018

Rewterz Threat Advisory – Red Hat update for glibc

November 5, 2018

Red Hat has released updates for glibc multiple vulnerabilities that cause privilege escalation and unauthorized system access.

 

 

IMPACT:  CRITICAL

 

 

PUBLISH DATE:  05-11-2018

 

 

OVERVIEW

 

 

Red Hat has issued an update for glibc for fixing multiple vulnerabilities. These can be exploited by malicious, local users to acquire privilege escalation and by malicious people to compromise a vulnerable system.

 

 

ANALYSIS

 

 

The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. If the glibc packages are compromised, the Linux system cannot function correctly without the above-mentioned libraries.

 

The security updates include following fixes for the given vulnerabilities.

 

CVE-2017-16997

 

glibc: This CVE number is allotted to an incorrect handling of RPATH in elf/dl-load.c, which can be used to execute code, loaded from arbitrary libraries.

 

CVE-2018-6485

 

glibc: This vulnerability results from an Integer overflow in posix_memalign in memalign functions.

 

CVE-2018-11236

 

glibc: This issue is caused by an Integer overflow in stdlib/canonicalize.c on 32-bit architectures. It leads to stack-based buffer overflow.

 

CVE-2018-11237

 

glibc: This problem arises from a Buffer overflow in __mempcpy_avx512_no_vzeroupper.

 

 

AFFECTED PRODUCTS

 

 

Red Hat Virtualization 4.x Red Hat Enterprise Linux Desktop 7

Red Hat Enterprise Linux HPC Node 7

Red Hat Enterprise Linux Server 7

Red Hat Enterprise Linux Workstation 7

 

 

UPDATES

 

 

Red Hat Network provides the updated packages via the following links.

 

http://rhn.redhat.com

 

https://access.redhat.com/errata/RHSA-2018:3092

 

 

If you think you’re the victim of a cyber-attack, immediately send an email to soc@rewterz.com for a quick response.

Platform

  • Rewterz XDR
  • Rewterz Defense
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Managed Security Services

  • Managed Security Monitoring
  • Remote SOC
  • Onsite SOC
  • Hybrid SOC

Assess

  • Compromise Assessment
  • APT Assessment
  • Penetration Testing
  • Architecture Design & Review
  • Red Team Assessment
  • Purple Team Assessment
  • Social Engineering
  • Source Code Review

Transform

  • SOC Consultancy
  • SOC Maturity Assessment
  • SOC Model Evaluation
  • SOC Gap Analysis
  • SIEM Gap Analysis
  • SIEM Optimization
  • SOC Content Pack

Train

  • Simulated Cyber Attack Exercise
  • Tabletop Exercise
  • Security Awareness and Training

Respond

  • Incident Analysis
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Threat Insights

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  • Monthly Threat Insights
  • Threat Intelligence Reports

Resources

  • Blog
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Connect With Us

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