Δεκέμβριος 2010 – Don't fear the penguin

Write a regular expression to match a MAC address. Go.

Take 1: ([0-9a-f]{2}:){5}[0-9a-f]{2}
Matches: 00:19:db:d0:8e:3c

Take 2: ([0-9a-fA-F]{1,2}[:-]){5}[0-9a-fA-F]{1,2}
Matches: 00-c-DB-a0-8E-f

[$] daxctl() — getting the other half of persistent-memory performance

Persistent memory promises high-speed, byte-addressable access to storage, with consequent benefits for all kinds of applications. But realizing those benefits has turned out to present a number of challenges for the Linux kernel community. Persistent memory is neither ordinary memory nor ordinary storage, so traditional approaches to memory and storage are […]

corbet

Intel Skylake/Kaby Lake processors: broken hyper-threading

Henrique de Moraes Holschuh has posted an advisory about a processor/microcode defect recently identified on Intel Skylake and Intel Kaby Lake processors with hyper-threading enabled. "TL;DR: unfixed Skylake and Kaby Lake processors could, in some situations, dangerously misbehave when hyper-threading is enabled. Disable hyper-threading immediately in B […]

ris

Stable kernel updates

Greg Kroah-Hartman has released stable kernels 4.4.74 and 3.18.58. Both contain the usual set of important fixes and users should upgrade.

ris

Security updates for Monday

Security updates have been issued by Arch Linux (kernel, linux-zen, and tcpreplay), Debian (drupal7, exim4, expat, imagemagick, and smb4k), Fedora (chromium, firefox, glibc, kernel, openvpn, and wireshark), Mageia (mercurial and roundcubemail), openSUSE (kernel, libmicrohttpd, libqt5-qtbase, libqt5-qtdeclarative, openvpn, and python-tablib), Scientific Linux […]

ris

Kernel prepatch 4.12-rc7

The 4.12-rc7 kernel prepatch is out. "It's fairly small, and there were no huge surprises, so if nothing untoward happens this upcoming week, this will be the final rc. But as usual, I reserve the right to just drag things out if I end up feeling uncomfortable about things for any reason including just random gut feelings, so we'll see." […]

corbet

Stable kernels 4.11.7 and 4.9.34

The 4.11.7 and 4.9.34 stable kernel updates have been released. Among other things, they contain the fixes for the recently disclosed "Stack Clash" vulnerability. The 4.4.74, and 3.18.58 updates are still in the review process but should be out in the near future.

corbet

[$] ProofMode: a camera app for verifiable photography

The default apps on a mobile platform like Android are familiar targets for replacement, especially for developers concerned about security. But while messaging and voice apps (which can be replaced by Signal and Ostel, for instance) may be the best known examples, the non-profit Guardian Project has taken up the cause of improving the security features of t […]

corbet

Security updates for Friday

Security updates have been issued by Arch Linux (linux-hardened), CentOS (sudo), Debian (apache2, c-ares, flatpak, graphite2, and openvpn), Fedora (glibc and thunderbird), Gentoo (graphite2, jbig2dec, libksba, nettle, urbanterror, and vim), openSUSE (go and unrar), Oracle (sudo), SUSE (tomcat), and Ubuntu (openvpn).

jake

digiKam 5.6.0 is released

The digiKam Team has released version 5.6.0 of the digiKam Software Collection for photo management. "With this version the HTML gallery and the video slideshow tools are back, database shrinking (e.g. purging stale thumbnails) is also supported on MySQL, grouping items feature has been improved, the support for custom sidecars type-mime have been added […]

ris

Security updates for Thursday

Security updates have been issued by Arch Linux (lxterminal, lxterminal-gtk3, openvpn, and pcmanfm), CentOS (thunderbird), Debian (jython, spip, tomcat7, and tomcat8), openSUSE (openvpn), Oracle (thunderbird), Slackware (openvpn), SUSE (openvpn), and Ubuntu (kernel, linux-lts-trusty, nss, and valgrind).

jake

SANS Internet Storm Center

A Tale of Two Phishies, (Tue, Jun 27th) Ιουνίου 27, 2017

Introduction

ISC Stormcast For Tuesday, June 27th 2017 https://isc.sans.edu/podcastdetail.html?id=5560, (Tue, Jun 27th) Ιουνίου 27, 2017

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

Investigation of BitTorrent Sync (v.2.0) as a P2P Cloud (Part 1), (Mon, Jun 26th) Ιουνίου 26, 2017

[This is the first part of a multi-part a guest diary written byDr. Ali Dehghantanha]

ISC Stormcast For Monday, June 26th 2017 https://isc.sans.edu/podcastdetail.html?id=5558, (Sun, Jun 25th) Ιουνίου 25, 2017

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

Traveling with a Laptop / Surviving a Laptop Ban: How to Let Go of "Precious", (Mon, May 29th) Ιουνίου 25, 2017

For a few months now, passengers on flights from certain countries are no longer allowed to carry laptops and other larger electronic devices into the cabin. Many news media reported over the last weeks that this policy may be expanded to flight from Europe, or to all flights entering the US. But even if you get to keep your laptop with you during your fligh […]

Fake DDoS Extortions Continue. Please Forward Us Any Threats You Have Received., (Fri, Jun 23rd) Ιουνίου 23, 2017

We do continue to receive reports about DDoS extortion e-mail. These e-mails are essentially spammed to the owners of domains based on whois records. They claim to originate from well-known hacker groups like Anonymous who have been known to launch DDoS attacks in the past. These e-mails essentially use the notoriety of the groups name to make the threat sou […]

ISC Stormcast For Friday, June 23rd 2017 https://isc.sans.edu/podcastdetail.html?id=5556, (Fri, Jun 23rd) Ιουνίου 23, 2017

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

ISC Stormcast For Thursday, June 22nd 2017 https://isc.sans.edu/podcastdetail.html?id=5554, (Thu, Jun 22nd) Ιουνίου 22, 2017

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

Obfuscating without XOR, (Thu, Jun 22nd) Ιουνίου 22, 2017

Malicious files are generated and spread over the wild Internet daily (read: hourly). The goal of the attackers is to use files that are:

It has been a month and a bit how is your new patching program holding up?, (Wed, Jun 21st) Ιουνίου 21, 2017

Last months entertainment for many of us was of course the wannacray ms17-010 update. For some of you it was a relaxing time just like any other month. Unfortunately for the rest of us it was a rather busy period trying to patch systems that in some cases had not been patched in months or even years. Others discovered that whilst security teams have been say […]

	Michail στο Ελληνικά ή Αγγλικά;
	adamo στο Ελληνικά ή Αγγλικά;
	Michail στο Ελληνικά ή Αγγλικά;
	Michail στο Ελληνικά ή Αγγλικά;
	cvi going distribute… στο version control for important…
	bilias στο It’s a girl!
	Sotiris Tsimbonis στο It’s a girl!
	kioan στο It’s a girl!
	kzorba στο It’s a girl!
	Sotiris Tsimbonis στο It’s a girl!

Μήνας: Δεκέμβριος 2010

Now we know where sudo reports

A regular expression to match MAC Addresses

IPv6 Certified Sage