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The Hacker News - Most Trusted Cyber Security and Computer Security Analysis: software patch

Google Releases Android Update to Patch Actively Exploited Vulnerability

Google Releases Android Update to Patch Actively Exploited Vulnerability

May 06, 2022Ravie Lakshmanan
Google has released monthly security patches for Android with fixes for 37 flaws across different components, one of which is a fix for an actively exploited Linux kernel vulnerability that came to light earlier this year. Tracked as  CVE-2021-22600  (CVSS score: 7.8), the vulnerability is ranked "High" for severity and could be exploited by a local user to escalate privileges or deny service. The issue relates to a  double-free vulnerability  residing in the  Packet  network protocol implementation in the Linux kernel that could cause memory corruption, potentially leading to denial-of-service or execution of arbitrary code. Patches were released by different Linux distributions, including  Debian ,  Red Hat ,  SUSE , and  Ubuntu  in December 2021 and January 2022. "There are indications that CVE-2021-22600 may be under limited, targeted exploitation," Google  noted  in its Android Security Bulletin for May 2022. Specifics about the nature of the attacks are
Researchers Disclose Unpatched Vulnerabilities in Microsoft Teams Software

Researchers Disclose Unpatched Vulnerabilities in Microsoft Teams Software

December 23, 2021Ravie Lakshmanan
Microsoft said it won't be fixing or is pushing patches to a later date for three of the four security flaws uncovered in its Teams business communication platform earlier this March. The disclosure comes from Berlin-based cybersecurity firm Positive Security, which  found  that the implementation of the link preview feature was susceptible to a number of issues that could "allow accessing internal Microsoft services, spoofing the link preview, and, for Android users, leaking their IP address, and DoS'ing their Teams app/channels." Of the four vulnerabilities, Microsoft is said to have addressed only one that results in IP address leakage from Android devices, with the tech giant noting that a fix for the denial-of-service (DoS) flaw will be considered in a future version of the product. The issues were responsibly disclosed to the company on March 10, 2021. Chief among the flaws is a server-side request forgery ( SSRF ) vulnerability in the endpoint "/urlp
Microsoft Releases Windows Updates to Patch Actively Exploited Vulnerability

Microsoft Releases Windows Updates to Patch Actively Exploited Vulnerability

August 11, 2021Ravie Lakshmanan
Microsoft on Tuesday rolled out  security updates  to address a total of 44 security issues affecting its software products and services, one of which it says is an actively exploited zero-day in the wild. The update, which is the smallest release since December 2019, squashes seven Critical and 37 Important bugs in Windows, .NET Core & Visual Studio, Azure, Microsoft Graphics Component, Microsoft Office, Microsoft Scripting Engine, Microsoft Windows Codecs Library, Remote Desktop Client, among others. This is in addition to  seven security flaws  it patched in the Microsoft Edge browser on August 5. Chief among the patched issues is  CVE-2021-36948  (CVSS score: 7.8), an elevation of privilege flaw affecting Windows Update Medic Service — a service that enables remediation and protection of Windows Update components — which could be abused to run malicious programs with escalated permissions. Microsoft's Threat Intelligence Center has been credited with reporting the flaw
Microsoft Urges Azure Users to Update PowerShell to Patch RCE Flaw

Microsoft Urges Azure Users to Update PowerShell to Patch RCE Flaw

July 05, 2021Ravie Lakshmanan
Microsoft is urging Azure users to  update  the PowerShell command-line tool as soon as possible to protect against a critical remote code execution vulnerability impacting .NET Core. The issue, tracked as  CVE-2021-26701  (CVSS score: 8.1), affects PowerShell versions 7.0 and 7.1 and have been remediated in versions 7.0.6 and 7.1.3, respectively. Windows PowerShell 5.1 isn't impacted by the flaw. Built on the .NET Common Language Runtime (CLR),  PowerShell  is a cross-platform task automation utility that consists of a command-line shell, a scripting language, and a configuration management framework. "A remote code execution vulnerability exists in .NET 5 and .NET Core due to how text encoding is performed," the company  noted in an advisory  published earlier this April, adding that the problem resides in the " System.Text.Encodings.Web " package, which provides types for encoding and escaping strings for use in JavaScript, HTML, and URLs. System.Text.
Adobe Issues Critical Patches for ColdFusion, Flash Player, Campaign

Adobe Issues Critical Patches for ColdFusion, Flash Player, Campaign

June 11, 2019Swati Khandelwal
It's Patch Tuesday week! Adobe has just released the latest June 2019 software updates to address a total 11 security vulnerabilities in its three widely-used products Adobe ColdFusion, Flash Player, and Adobe Campaign. Out of these, three vulnerabilities affect Adobe ColdFusion, a commercial rapid web application development platform—all critical in severity—that could lead to arbitrary code execution attacks. Here below you can find brief information about all newly patched ColdFusion flaws : CVE-2019-7838 — This vulnerability has been categorized as "File extension blacklist bypass" and can be exploited if the file uploads directory is web accessible. CVE-2019-7839 — There's a command injection vulnerability in ColdFusion 2016 and 2018 editions, but it does not impact ColdFusion version 11. CVE-2019-7840 — This flaw originates from the deserialization of untrusted data and also leads to arbitrary code execution on the system. Besides ColdFusion
Cisco VoIP phone vulnerability allow eavesdropping remotely

Cisco VoIP phone vulnerability allow eavesdropping remotely

December 15, 2012Mohit Kumar
Cui, a fifth year grad student from the Columbia University Intrusion Detection Systems Lab and co-founder of Red Balloon Security, has demonstrated an attack on common Cisco-branded Voice over IP (VoIP) phones that could easily eavesdrop on private conversations remotely. The vulnerability Cui demonstrated was based on work he did over the last year on what he called ' Project Gunman v2 ', where a laser printer firmware update could be compromised to include additional, and potentially malicious, code. The latest vulnerability is based on a lack of input validation at the syscall interface. Cui said, " allows arbitrary modification of kernel memory from userland, as well as arbitrary code execution within the kernel. This, in turn, allows the attacker to become root, gain control over the DSP , buttons, and LEDs on the phone. " While he did not specify the precise vulnerability, Cui said it allowed him to patch the phone's software with arbitrary pieces of code, and that this a
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