Security

Version 3 of Personal Software Inspector (PSI), Secunia‘s free program updater, has been released with a much simplified user interface, enabling less technically astute users to keep their Windows applications up to date as well. According to Secunia, the automatic updater has also been enhanced. PSI is now able to keep programs from more than 3,000 companies up to date, though, as before, PSI only cares about updates which fix security vulnerabilities....

The WordPress developers have released version 3.4.1 of their popular open source publishing platform, fixing a number of bugs and closing security holes, one of which is rated as important. WordPress 3.4, which has already been downloaded 3 million times since being released two weeks ago, contains a important privilege escalation flaw that accidentally allowed all administrators and editors on multi-site installations to use unfiltered_html. This could have been exploited by users for cross-site scripting (XSS) attacks by, for example, publishing posts containing malicious code....

Google has closed a total of 23 vulnerabilities with the release of Chrome 20. Of those vulnerabilities, 14 are rated critical, enabling attackers to execute code in the browser’s sandbox, among other things. Integer overflow vulnerabilities in the code for processing PDF files and Matroska containers (.mkv) have also been fixed. Chrome 20 also includes the latest version of Adobe’s Flash Player on Linux, using the new cross-platform Pepper API. In testing at The H, it was confirmed that the Flash Player support also works on 64-bit Linux systems....

Adobe Reader X runs in a sandbox at a very restricted privilege level. Important system calls are supposed to be handled by a special broker process that will subject them to extensive testing. However, a small design flaw allows attackers to escape from this sandbox and execute arbitrary code – despite having both ASLR (Address Space Layout Randomisation) and DEP (Data Execution Prevention). As described by Guillaume Delugré, the broker process is at the heart of the exploit as it uses a memory page allocated via VirtualAllocEx to store the overwritten code of system calls which have been redirected to the broker....

With the release of version 5.63 of Winamp, Nullsoft, a division of AOL Music, has eliminated four critical security vulnerabilities in the media player. Three of these were heap-based buffer overflows in Winamp’s bmp.w5s component that could have been exploited by an attacker to execute arbitrary code on a victim’s system. For an attack to be successful, a user must first open a specially crafted AVI file. It has been confirmed that the vulnerability affects version 5....

The H-Online: Microsoft has released seven security bulletins fixing a total of 27 security holes, 13 of them in Internet Explorer. The rest of the patches affect all currently supported Windows versions, the .NET Framework, Remote Desktop, Lync and Dynamics AX. A patch that had been announced for Visual Basic for Applications has yet to be released. The most important updates are bundled in the cumulative Internet Explorer patch (MS12-037), which includes fixes for the holes that were targeted by Pwn2Own exploits....

The H-Online: Adobe has announced the release of an update for Flash Player on Windows, Mac, Linux, Android 3.x and 4.x, and within its own AIR runtime. The update addresses several critical vulnerabilities which involve memory corruption, stack overflows, integer overflows, security being bypassed, null dereferencing and binary planting (DLL hijacking). All, except the security bypass, could lead to code execution. The updates also include a number of security enhancements on various platforms....

The H-Online: Version 7.7.2 of QuickTime for Windows has been released to address a total of 17 security vulnerabilities in the media player. According to Apple, these include integer, stack and buffer overflows, as well as memory corruption issues, all of which could be could exploited by an attacker to crash the application or execute arbitrary code on a victim’s system. For an attack to be successful, a user must first open a malicious web site or a specially crafted file....

The H-Online: RealNetworks is warning users about multiple security vulnerabilities in its RealPlayer media player application for Windows; the company says that none of the, now fixed, holes are known to have been used to compromise systems. The released update, version 15.0.4.53 of RealPlayer, closes three security holes. One hole is related to ASM RuleBook parsing that could be exploited by an attacker to remotely execute arbitrary code, another is a memory corruption problem related to MP4 file handling in the QuickTime plugin used by RealPlayer, and the third is a buffer overrun in the Media parser....

The H-Online: As previously announced, Microsoft has released seven bulletins to close a total of 23 vulnerabilities on its May Patch Tuesday. The total number of bulletins belies the scope of the patches, however, as the combined update MS12-034 closes various holes in numerous products. The reason for this is a critical hole in the code for processing TrueType fonts that was exploited by the Duqu spyware last year. The hole was closed in the Windows kernel on the December Patch Tuesday; however, Microsoft has since used a code scanner to track down the vulnerable code in numerous other components; among them is the gdiplus....