Government of the Republic of Trinidad and Tobago
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Securing the Nation's Digital Infrastructure

TTCSIRT-121.052118: TT-CSIRT Advisory – BIND Security Updates

The Internet Systems Consortium (ISC) has released a security update stating that A problem with the implementation of the new serve-stale feature in BIND 9.12 can lead to an assertion failure in rbtdb.c even when stale-answer-enable is off. Additionally, problematic interaction between the serve-stale feature and NSEC aggressive negative caching can in some cases cause …

TTCSIRT-120.051718: TT-CSIRT Advisory – Microsoft Security Updates

Microsoft has released a security update stating that multiple vulnerabilities have been discovered in Microsoft Office PowerPoint and Excel for Mac where an attacker could entice a victim to open a specially crafted file using the affected application where Microsoft Office PowerPoint and Excel for Mac fails to properly handle objects in memory. Details of …

TTCSIRT-119.051718: TT-CSIRT Advisory – VMware Security Updates

VMware has released a security update stating that VMware NSX SD-WAN Edge by VeloCloud contains a command injection vulnerability in the local web UI component. This component is disabled by default and should not be enabled on untrusted networks as successful exploitation of this issue could result in remote code execution. Further information on this …

TTCSIRT-118.051418: TT-CSIRT Advisory – Mozilla Security Updates

Mozilla has released a security update stating that the following vulnerabilities have been discovered in Mozilla Firefox and Firefox Extended Support Release (ESR): a) A buffer overflow was found during UTF8 to Unicode string conversion within JavaScript with extremely large amounts of data. This vulnerability requires the use of a malicious or vulnerable legacy extension …

TTCSIRT-117.051418: TT-CSIRT Advisory – Chrome Security Updates

Google has released a security update stating that the following vulnerabilities have been discovered in Google Chrome: a) Heap buffer overflow in PDFium – (CVE-2018-6120) b) Privilege escalation in extensions – (CVE-2018-6121) c) Type confusion in V8 – (CVE-2018-6122) d) Chain leading to sandbox escape Successful exploitation of the most severe of these vulnerabilities could …

TTCSIRT-116.050918: TT-CSIRT Advisory – Microsoft Security Updates

Microsoft has released a security update stating that vulnerabilities have been found in several of its products which could allow for remote code execution. Products affected include: 1) Microsoft Windows 7, 8, RT 8.1, and 10 2) Microsoft Windows Server 2008, 2008 R2, 2012, 2012 R2, 2016 3) Microsoft Windows Server Core Installation 2008, 2008 …

TTCSIRT-115.050918: TT-CSIRT Advisory – Adobe Security Updates

Adobe has released a security update stating that a vulnerability has been discovered in Adobe Flash Player which could allow for arbitrary code execution due to type confusion error. Depending on the privileges associated with the user, an attacker could then install programs, view, change, delete data or create new accounts with full user rights. …

TTCSIRT-114.050318: TT-CSIRT Advisory – Cisco Security Updates

Cisco has released a security update stating that a vulnerability has been discovered in Cisco Adaptive Security Appliance (ASA) which could allow for an unauthenticated, remote attacker to establish a Secure Sockets Layer (SSL) Virtual Private Network (VPN) connection to the device and bypass certain SSL certificate verification steps. The vulnerability is due to incorrect …

TTCSIRT-113.050318: TT-CSIRT Advisory – Microsoft Security Updates

Microsoft has released a security update stating that a remote code execution vulnerability exists when the Windows Host Compute Service Shim (hcsshim) library fails to properly validate input while importing a container image. Exploitation occurs when an attacker places malicious code in a specially crafted container image which, if an authenticated administrator imported (pulled), could …

TTCSIRT-112.042518: TT-CSIRT Advisory – Apple Security Updates

Apple has a released a security update stating that the following vulnerabilities have been discovered in the macOS 10.13.4: a) A memory corruption issue was addressed with improved error handling which could lead to an application may be able to gain elevated privileges – CVE-2018-4206 b) A spoofing issue existed in the handling of URLs …