Adobe issues patch for yet another Flash Player zero-day

Posted by   Virus Bulletin on   Feb 5, 2015

CVE-2015-0313 used in the wild as long ago as December.

Adobe has just issued an out-of-band patch for its Flash Player to fix a zero-day vulnerability that is actively being exploited in the wild.

You may be forgiven for thinking you had already patched this two weeks ago when Flash Player version 16.0.0.287 fixed CVE-2015-0310, or last week when version 16.0.0.296 fixed CVE-2015-0311, another vulnerability that was being used in exploit kits in the wild.

This, however, is yet another vulnerability: CVE-2015-0313, which is being used against Internet Explorer and Firefox users.

This time it is not the Angler exploit kit that is infecting users, but the relatively unknown 'Hanjuan' kit, as Trend Micro reports. A number of researchers, including F-Secure's Timo Hirvonen, believe that Hanjuan's use of the vulnerability may go back as far as December last year.

CVE-2015-0313 is a use-after-free vulnerability in Flash's handling of fast memory access to 'domain memory'. SpiderLabs's Ben Hayak has analysed the vulnerability here, with Trend Micro's Peter Pi providing another analysis here.

Last week, we published the VB2014 paper 'Ubiquitous Flash, ubiquitous exploits, ubiquitous mitigation' from Microsoft researchers Chun Feng and Elia Florio. This paper analyses two earlier vulnerabilities in Flash Player's implementation of domain memory opcode and also serves as a good general introduction to the subject. You can read their paper here in HTML-format, or download it here as a PDF.

While updating to Flash Player version 16.0.0.305 should be given the highest priority, users might also want to consider making Flash click-to-play in all their browsers. Unlike NoScript, which does the same to JavaScript, it doesn't seriously impact the browsing experience. Graham Cluley explains how to enable this feature in the five most popular browsers.

  By making Flash Player click-to-play, even Adobe can't run Flash without your permission.

Posted on 05 February 2015 by Martijn Grooten

twitter.png
fb.png
linkedin.png
hackernews.png
reddit.png

 

Latest posts:

VB2018 paper: The modality of mortality in domain names

Domains play a crucial role in most cyber attacks, from the very advanced to the very mundane. Today, we publish a VB2018 paper by Paul Vixie (Farsight Security) who undertook the first systematic study into the lifetimes of newly registered domains.…

VB2018 paper: Analysing compiled binaries using logic

Constraint programming is a lesser-known technique that is becoming increasingly popular among malware analysts. In a paper presented at VB2018 Thaís Moreira Hamasaki presented an overview of the technique and explained how it can be applied to the…

Virus Bulletin encourages experienced speakers and newcomers alike to submit proposals for VB2019

With a little less than a month before the deadline of the call for papers for VB2019, Virus Bulletin encourages submissions from experienced speakers and newcomers alike.

VB2018 paper: Internet balkanization: why are we raising borders online?

At VB2018 in Montreal, Ixia researcher Stefan Tanase presented a thought-provoking paper on the current state of the Internet and the worrying tendency towards raising borders and restricting the flow of information. Today we publish both his paper…

The malspam security products miss: banking and email phishing, Emotet and Bushaloader

The set-up of the VBSpam test lab gives us a unique insight into the kinds of emails that are more likely to bypass email filters. This week we look at the malspam that was missed: banking and email phishing, Emotet and Bushaloader.

We have placed cookies on your device in order to improve the functionality of this site, as outlined in our cookies policy. However, you may delete and block all cookies from this site and your use of the site will be unaffected. By continuing to browse this site, you are agreeing to Virus Bulletin's use of data as outlined in our privacy policy.