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LWN.net is a comprehensive source of news and opinions from and about the Linux community. This is the main LWN.net feed, listing all articles which are posted to the site front page.
Frissült: 6 perc 22 másodperc
If you run PostgreSQL and have applied one of the updates that were released on May 22, it would be a good idea to read this page about an unfortunate bug in those releases. In some cases, the problem can cause the server to fail to restart after a crash. There is a new release in the works; meanwhile, a workaround is available.
Ars Technica takes a look at the latest malware threat. "A worm that targets cable and DSL modems, home routers, and other embedded computers is turning those devices into a proxy network for launching armies of fraudulent Instagram, Twitter, and Vine accounts as well as fake accounts on other social networks. The new worm can also hijack routers' DNS service to route requests to a malicious server, steal unencrypted social media cookies such as those used by Instagram, and then use those cookies to add "follows" to fraudulent accounts. This allows the worm to spread itself to embedded systems on the local network that use Linux-based operating systems. The malware, dubbed "Linux/Moose" by Olivier Bilodeau and Thomas Dupuy of the security firm ESET Canada Research, exploits routers open to connections from the Internet via Telnet by performing brute-force login attempts using default or common administrative credentials. Once connected, the worm installs itself on the targeted device."
Debian has updated ipsec-tools (denial of service), nbd (denial of service), postgresql-9.1 (multiple vulnerabilities), postgresql-9.4 (multiple vulnerabilities), tiff (multiple vulnerabilities), and zendframework (multiple vulnerabilities).
Debian-LTS has updated ntfs-3g (privilege escalation).
Fedora has updated firefox (F22: multiple vulnerabilities), hostapd (F22: denial of service), java-1.8.0-openjdk (F22: file overwrites), kernel (F20: two vulnerabilities), libarchive (F21: denial of service), LibRaw (F22; F20: denial of service), mingw-LibRaw (F22; F22; F20: denial of service), openstack-glance (F22: access restriction bypass), php (F22: multiple vulnerabilities), php-ZendFramework2 (F22: CRLF injection), phpMyAdmin (F22: two vulnerabilities), qemu (F22; F20: code execution), quassel (F22: denial of service), suricata (F22: denial of service), thunderbird (F22: multiple vulnerabilities), wordpress (F22: cross-site scripting), and xen (F22; F21; F20: privilege escalation).
openSUSE has updated coreutils (13.2: multiple vulnerabilities), firefox (13.2, 13.1: multiple vulnerabilities), libraw (13.2, 13.1: denial of service), LibVNCServer (13.2: code execution), quassel (13.2, 13.1: SQL injection), thunderbird (13.2, 13.1: multiple vulnerabilities), and wireshark (13.2; 13.1: multiple vulnerabilities).
Red Hat has updated chromium-browser (RHEL6: multiple vulnerabilities).
Ubuntu has updated kernel (14.04: denial of service), linux-lts-trusty (12.04: denial of service), and postgresql-9.1, postgresql-9.3, postgresql-9.4 (15.04, 14.10, 14.04, 12.04: multiple vulnerabilities).
The Fedora 22 release is out. "If this release had a human analogue, it'd be Fedora 21 after it'd been to college, landed a good job, and kept its New Year's Resolution to go to the gym on a regular basis. What we're saying is that Fedora 22 has built on the foundation we laid with Fedora 21 and the work to create distinct editions of Fedora focused on the desktop, server, and cloud (respectively). It's not radically different, but there are a fair amount of new features coupled with features we've already introduced but have improved for Fedora 22." LWN's preview of Fedora 22 was published in the May 21 Weekly Edition.
An anonymous reader has pointed out that Mandriva is currently being liquidated (page in French). The company brought in €553,000 in 2013, but that is seemingly not enough to keep it going in 2015. It is a sad end for a company that has been pursuing the desktop Linux dream since 1998.
The fifth 4.1 prepatch is out for testing. "So we're on schedule for a normal 4.1 release, if it wasn't for the fact that the timing looks like the next merge window would hit our yearly family vacation. So we'll see how that turns out, I might end up delaying the release just to avoid that (or just delay opening the merge window)."
There have been two bugs causing filesystem corruption in the news recently. One of them, a bug in ext4, has gotten the bulk of the attention, despite the fact that it is an old bug that is hard to trigger. The other, however, is recent and able to cause data loss on filesystems installed on a RAID 0 array. Both are interesting examples of how things can go wrong, and, thus, merit a closer look.
At his blog, Bastien Nocera announces the 1.0 release of iio-sensor-proxy, a framework for accessing the various environmental sensors (e.g., accelerometer, magnetometer, proximity, or ambient-light sensors) built in to recent laptops. The proxy is a daemon that listens to the Industrial I/O (IIO) subsystem and provides access to the sensor readings over D-Bus. As of right now, support for ambient-light sensors and accelerometers is working; other sensor types are in development. The current API is based on those used by Android and iOS, but may be expanded in the future. "For future versions, we'll want to export the raw accelerometer readings, so that applications, including games, can make use of them, which might bring up security issues. SDL, Firefox, WebKit could all do with being adapted, in the near future."
Arch Linux has updated chromium (multiple vulnerabilities).
Ubuntu has updated apport (two privilege escalation vulnerabilities), fuse (privilege escalation), ntfs-3g (privilege escalation), oxide-qt (14.04, 14.10, 15.04: multiple vulnerabilities), and python-dbusmock (14.04, 14.10, 15.04: code execution).
The announcement of Clear Containers (which guest author Arjan van de Ven described in an LWN article from this week) seems to have sparked some interesting work on QEMU that resulted in qboot: "a minimal x86 firmware that runs on QEMU and, together with a slimmed-down QEMU configuration, boots a virtual machine in 40 milliseconds on an Ivy Bridge Core i7 processor." Paolo Bonzini announced the project (code is available at git://github.com/bonzini/qboot.git), which is quite new: "The first commit to qboot is more or less 24 hours old, so there is definitely more work to do, in particular to extract ACPI tables from QEMU and present them to the guest. This is probably another day of work or so, and it will enable multiprocessor guests with little or no impact on the boot times. SMBIOS information is also available from QEMU."
Debian has updated libmodule-signature-perl (multiple vulnerabilities).
Debian-LTS has updated dnsmasq (information disclosure).
The LWN.net Weekly Edition for May 21, 2015 is available.
Fedora has updated dovecot (F21; F20: denial of service), firefox (F20: multiple vulnerabilities), libtasn1 (F21: denial of service), php-ZendFramework2 (F21; F20: CRLF injection), and thunderbird (F20: multiple vulnerabilities).
Ubuntu has updated kernel (14.10; 14.04; 12.04: multiple vulnerabilities), linux-lts-trusty (12.04: multiple vulnerabilities), linux-lts-utopic (14.04: multiple vulnerabilities), and linux-ti-omap4 (12.04: two vulnerabilities).
The PostgreSQL development community is working toward the 9.5 release, currently planned for the third quarter of this year. Development activity is at peak levels as the planned feature freeze for this release approaches. While this activity is resulting in the merging of some interesting functionality, including the long-awaited "upsert" feature, it is also revealing some fault lines within the community. The fact that PostgreSQL lacks the review resources needed to keep up with its natural rate of change has been understood for years; many other projects suffer from the same problem. But the pressures on PostgreSQL seem to be becoming more acute, leading to concerns about fairness in the community and the durability of the project's cherished reputation for high-quality software.
Lars Knoll marks the 20th anniversary of the Qt toolkit on the Qt blog. "From the beginning, Qt has been released with both open source and commercial licensing options. Over the years, we have worked on expanding this model, and nowadays, Qt is actually developed as an open source project. In this sense Qt is actually in a rather unique position, having a strong ecosystem with passionate people, as well as a commercial entity behind it, which backs up and funds most of the development."
Over at Linux.com, John Mark Walker examines why companies aren't making money on pure open source ventures. "It is not that there is no money in selling open source software, but rather that the business models have shifted. Whereas, under the old proprietary world, a larger percentage of money went to pure software vendors, now that money has spread among a larger spectrum of companies and industries; lots of people get paid to work on or with open source software, but an increasing number of them don’t work for software vendors, per se. In addition to looking in all the wrong places, the current investment model is suspicious of an open source approach. The vast majority of venture capitalists, especially in Silicon Valley, are very risk averse and shy away from open source products that, in their view, will not give as large a return on their investment. In order to secure the funding required to scale a company, investors will frequently require that the startup company include proprietary bits as tools to increase revenue and margins. These two factors - diffusion of revenue and risk-averse investors - combine to both give a false impression and, in part due to the false impression, prevent pure open source software vendors from getting funding."
Mageia has updated avidemux (multiple vulnerabilities), firefox, thunderbird, sqlite3 (multiple vulnerabilities), moodle (multiple vulnerabilities), php (multiple vulnerabilities), phpmyadmin (two vulnerabilities), and xbmc (denial of service).
Scientific Linux has updated thunderbird (SL5,6,7: multiple vulnerabilities).
Ubuntu has updated thunderbird (15.04, 14.10, 14.04, 12.04: multiple vulnerabilities).
Linux Journal takes a look at the C.H.I.P. mini-computer, an open software and hardware device that comes with a Debian-based OS. "The official public release is scheduled for next year, but crowdfunding backers will be able to land a "Kernel Hacker" package this September. This package is aimed at Linux developers who want to help to contribute to kernel modifications for the C.H.I.P. before its final release."
Linus has released the 4.1-rc4 kernel prepatch, saying: "So here it is, last-minute fix and all. The -rc4 patch is a bit bigger than the previous ones, but that seems to be mainly due to normal random timing - just the fluctuation of when submaintainer trees get pushed."
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