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Desktop Security
security advisory vulnerability
security advisory vulnerability GNOME is officially shortening its standard vulnerability disclosure window from 90 days to 30 days, a change that impacts upstream maintainers, downstream Linux distributions, and system administrators in how they handle software vulnerabilities. The policy shift, announced by long-time security coordinator Michael Catanzaro , addresses modern software patching realities and a growing influx of automated submissions. . Because GNOME is the default desktop environment on several major Linux...
Jul 21, 2026
Security Vulnerabilities security advisory moderate
security advisory moderate For organizations that run a self-hosted Git platform, it’s no longer just about hosting static code repositories. Today, Git servers are responsible for deployment pipelines, API tokens, SSH keys, package repositories, and the automation scripts that push code directly. Confirm that the upgrade addresses known vulnerabilities but also provides production environments. . That makes them trusted systems within the development environment and attractive targets for attackers looking to move...
Jul 20, 2026
Server Securitydata privacy automation
data privacy automation Every system admin has lived through the same Monday morning ritual. A queue of forty tickets, half of them password resets, permission errors, or disk space warnings that any experienced technician could resolve in under two minutes. The other half require actual judgment. For years, automation promised that software would eventually sort the two apart on its own. That promise is now being tested in production Linux environments. . Early results are reshaping how IT teams think about tier-1...
Jul 17, 2026
Privacydata collection automation
data collection automation You're running a web scraping project to collect pricing data from e-commerce sites. You set up a pool of datacenter proxies, launch your scripts, and within minutes — banned . CAPTCHAs everywhere. Your data pipeline stops before it really begins. . It's a frustrating scenario that plays out daily in ad verification, market research, and multi-account management. The website doesn't know you're doing legitimate research or monitoring. It just sees traffic coming from IP ranges it recognizes as...
Jul 17, 2026
Security Trends security advisory social engineering
security advisory social engineering Business Email Compromise used to be a numbers game — mass-blasted emails, broken English, an obvious "URGENT WIRE TRANSFER" subject line. That era is over. Generative AI has turned BEC into a tailored, low-noise operation that mimics writing style, voice, and even video presence. This piece looks at what's actually changed under the hood, what defenders are testing in response, and why so many organizations are still structurally unprepared for it. . The Infrastructure Problem Nobody Wants to...
Jul 17, 2026
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67
security advisoryOpenSSLtiming attackGnuTLS Security Advisory: Mitigation for Timing Attack Post OpenSSL Fix
Last week, we wrote about a bunch of memory management bugs that were fixed in the latest security update of the popular OpenSSL encryption library. Along with those memory bugs, we also reported on a bug dubbed CVE-2022-4304: Timing Oracle in RSA Decryption . . In this bug, firing the same encrypted message over and over again at a server, but modifying the padding at the end of the data to make the data invalid, and thus provoking some sort of unpredictable behaviour… …wouldn’t take a consistent amount of time, assuming you were close to the target on the network that you could reliably guess how long the data transfer part of the process would take. . GnuTLS has released a patch addressing timing attack vulnerabilities, enhancing memory management and ensuring cryptographic processes run in constant time.. GnuTLS Timing Attack, OpenSSL Security Update, Memory Handling. . LinuxSecurity.com Team
Feb 15, 2023
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Cryptography
74
security advisorytiming attackdata exposureSSL/TLS Security Advisory: Lucky13 Timing Attack Risk to Encrypted Data
Secure Sockets Layer/Transport Layer Security is the foundational technology that secures Web transactions and communications, but it is not infallible. . New research dubbed Lucky13 reveals that SSL/TLS is at risk from a theoretical timing attack that could expose encrypted data. TLS headers include 13 bytes of data used for the secure handshake protocol, said researchers from Royal Holloway at the University of London, and they can be exploited in the Lucky13 attack. The link for this article located at eSecurityPlanet is no longer available. . New research dubbed Lucky13 reveals that SSL/TLS is at risk from a theoretical timing attack that co. secure, sockets, layer/transport, layer, security, foundational, technology, secures, transa. . Dave Wreski
Feb 12, 2013
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Network Security
67
private keytiming attackcryptographyTiming Attack on SSL Servers: Exposing Private Keys with ECC
Security researchers have discovered a "timing attack" that creates a possible mechanism for a hacker to extract the secret key of a TLS/SSL server that uses elliptic curve cryptography (ECC).. Elliptic curve cryptography is a type of public-key algorithm that uses the maths of elliptic curves rather than integer factorisation, which is used by RSA as a one-way function. By using ECC it is possible to provide equivalent levels of difficulty for a brute-force attack as can be provided by the more familiar integer-factorisation approaches, but using smaller key lengths. The approach has benefits for mobile and low-power systems. The link for this article located at The Register UK is no longer available. . New vulnerabilities in ECC raise concerns about SSL security; highlights the need for robust cryptographic measures.. Timing Attack, SSL Security, ECC Cryptography, Key Exposure. . LinuxSecurity.com Team
May 26, 2011
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Cryptography
83
security conferencetiming attackuser authenticationExamining Timing Attacks on OAuth and OpenID Authentication Flaws
A well-known cryptographic attack could be used by hackers to log into Web applications used by millions of users, according to two security experts who plan to discuss the issue at an upcoming security conference.. Researchers Nate Lawson and Taylor Nelson say they've discovered a basic security flaw that affects dozens of open-source software libraries -- including those used by software that implements the OAuth and OpenID standards -- that are used to check passwords and user names when people log into websites. OAuth and OpenID authentication are accepted by popular Web sites such as Twitter and Digg. They found that some versions of these login systems are vulnerable to what's known as a timing attack. Cryptographers have known about timing attacks for 25 years, but they are generally thought to be very hard to pull off over a network. The researchers aim to show that's not the case. The link for this article located at IT World is no longer available. . Researchers Nate Lawson and Taylor Nelson say they've discovered a basic security flaw that affects . well-known, cryptographic, attack, hackers, applications. . LinuxSecurity.com Team
Jul 16, 2010
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Hacks/Cracks
67
security advisorythreat analysistiming attackEnhancing RSA Cryptography: New Threat from Branch Prediction Exploits
"Branch Prediction Analysis is a recent attack vector against RSA public-key cryptography on personal computers that relies on timing measurements to get information on the bits in the private key. However, the method is not very practical because it requires many attempts to obtain meaningful information, and the current OpenSSL implementation now includes protections against those attacks. However, German cryptographer Jean-Pierre Seifert has announced a new method called Simple Branch Prediction Analysis that is at the same time much more efficient that the previous ones, only needs a single attempt, successfully bypasses the OpenSSL protections, and should prove harder to avoid without a very large execution penalty." . The link for this article located at Slashdot.org is no longer available. . The link for this article located at Slashdot.org is no longer available.. 'branch, prediction, analysis, recent, attack, vector, against, public-key, cryptography, persona. . LinuxSecurity.com Team
Nov 20, 2006
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Cryptography
77
security advisoryvulnerabilitytiming attackIntel Hyperthreading: Timing Attacks Expose Security Keys
Intel's hyperthreading technology could allow a hacker to steal security keys from a compromised server using a sophisticated timing attack, a researcher has warned. Hyperthreading allows software to take advantage of unused execution units in a processor. It essentially allows two separate processes, or software threads, to execute on a single processor at the same time, improving performance. . However, by taking advantage of the fact that the processes share access to a chip's cache memory, a malicious user can determine the security keys to a particular computer by monitoring the cache for those keys, said Colin Percival, an independent researcher, in a paper posted to his website and presented at the BSDCan 2005 conference. The link for this article located at TechWorld is no longer available. . Explore the ways in which Intel's hyperthreading technology could inadvertently reveal sensitive security keys through a sophisticated attack strategy.. Intel Hyperthreading, Timing Attack, Performance Risks, Security Keys. . LinuxSecurity.com Team
May 17, 2005
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Server Security
67
security advisoryupdatetiming attackOpenSSH 3.6 Release With Security Enhancements and New Features
OpenSSH 3.6 has just been released. It will be available from the mirrors listed at OpenSSH shortly. OpenSSH is a 100% complete SSH protocol version 1.3, 1.5 and 2.0 implementation and includes sftp client and server support. . .. OpenSSH 3.6 has just been released. It will be available from the mirrors listed at OpenSSH shortly. OpenSSH is a 100% complete SSH protocol version 1.3, 1.5 and 2.0 implementation and includes sftp client and server support . We would like to thank the OpenSSH community for their continued support to the project, especially those who contributed source and bought T-shirts or posters. We have a new design of T-shirt available, more info on OpenBSD: T-shirts For international orders use and for European orders, use .eu Changes since OpenSSH 3.5: ============================ RSA blinding is now used by ssh(1), sshd(8) and ssh-agent(1). in order to avoid potential timing attacks against the RSA keys. Older versions of OpenSSH have been using RSA blinding in ssh-keysign(1) only. Please note that there is no evidence that the SSH protocol is vulnerable to the OpenSSL/TLS timing attack described in stanford ssh-agent(1) optionally requires user confirmation if a key gets used, see '-c' in ssh-add(1). sshd(8) now handles PermitRootLogin correctly when UsePrivilegeSeparation is enabled. sshd(8) now removes X11 cookies when a session gets closed. ssh-keysign(8) is disabled by default and only enabled if the new EnableSSHKeysign option is set in the global ssh_config(5) file. ssh(1) and sshd(8) now handle 'kex guesses' correctly (key exchange guesses). ssh(1) no longer overwrites SIG_IGN. This matches behaviour from rsh(1) and is used by backup tools. setting ProxyCommand to 'none' disables the proxy feature, see ssh_config(5). scp(1) supports add -1 and -2. scp(1) supports bandwidth limiting. sftp(1) displays a progressmeter. sftp(1) has improved error handling for scripting. Checksums: ========== MD5 (openssh-3.6p1.tar.gz) = 72ef1134d521cb6926c99256dad17fe0 MD5 (openssh-3.6.tgz) = 758822b888c5c3f83a98045aef904254 Reporting Bugs: =============== please read OpenSSH: Problem Reports and Bugzilla Main Page OpenSSH is brought to you by Markus Friedl, Niels Provos, Theo de Raadt, Kevin Steves, Damien Miller and Ben Lindstrom. . OpenSSH 3.6 has just been released. It will be available from the mirrors listed at OpenSSH shortly.. openssh, released, mirrors, listed, shortly. . LinuxSecurity.com Team
Mar 31, 2003
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Cryptography
79
security advisorybuffer overflowtiming attackLinux Kernel Ptrace: Local Root Access Threat and OpenSSL Timing Risk
The last several weeks, as always, have brought a constant flow of security advisories. Perhaps not a torrent, but certainly more than a mere trickle. Most notable among these is the Linux kernel ptrace vulnerability, which allows local users to acquire root privileges.. . .. The last several weeks, as always, have brought a constant flow of security advisories. Perhaps not a torrent, but certainly more than a mere trickle. Most notable among these is the Linux kernel ptrace vulnerability, which allows local users to acquire root privileges. Next, there is a clever timing attack against OpenSSL that can reveal a site's private key and thus compromise all of its traffic. There is also the mysql configuration file vulnerability, whereby a malicious user can write out a file that will allow him to acquire full privileges; a buffer overflow and local root exploit in the venerable lpr print daemon; a buffer overflow and potential root exploit in the Mutt mail reader's IMAP code; and a glibc integer overflow that allows remote code execution via RPC. . Current security bulletins underscore urgent vulnerabilities within the Linux kernel, OpenSSL, and MySQL, necessitating prompt action.. Linux Kernel Security, OpenSSL Timing Attack, Mysql Threat, Buffer Overflow Exploits. . LinuxSecurity.com Team
Mar 26, 2003
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Security Projects
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