Major vulnerability in Linux
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Major vulnerability in Linux
17-02-2016 9:13 AM
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http://www.bbc.co.uk/news/technology-35592916
https://threatpost.com/critical-glibc-vulnerability-puts-all-linux-machines-at-risk/116261/
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Re: Major vulnerability in Linux
17-02-2016 9:23 AM
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Quote Our suggested mitigation is to limit the response (i.e., via DNSMasq or similar programs) sizes accepted by the DNS resolver locally as well as to ensure that DNS queries are sent only to DNS servers which limit the response size for UDP responses with the truncation bit set.
So basically only use trusted DNS servers e.g. google
For more see google security blog https://googleonlinesecurity.blogspot.co.uk/2016/02/cve-2015-7547-glibc-getaddrinfo-stack.html

Re: Major vulnerability in Linux
17-02-2016 9:43 AM
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Quote from: spoon So much for the claims that Linux is more secure than Windows!
That's because it is. Have a look in your Windows Update History to see how many of them start with "Security Update...".
To be fair this is a bit of a screamer as it's been known about since 2008, but I assume due to the complexity of actually exploiting it the developers ranked it as a low priority, well I hope that was their reasoning!
Re: Major vulnerability in Linux
17-02-2016 10:10 AM
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Quote Google said that a number of exploitation vectors can be used to attack this vulnerability, including but not limited to ssh, sudo and curl.
“Remote code execution is possible, but not straightforward,” Serna said. “It requires bypassing the security mitigations present on the system, such as ASLR.”
So unless they are actually able to get the to the ROOT user (sudo/su etc) then it just isn't doing anything.
There are SO SO MANY easier ways to hack M$, let me count they ways

Re: Major vulnerability in Linux
17-02-2016 10:19 AM
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All OS tend to get vulerabilities at times, the question this isn't that they get them, but how often, and how long does it take to fix?

Re: Major vulnerability in Linux
17-02-2016 4:29 PM
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glibc-2.22-4-x86_64
Not even 12 hours old.

Re: Major vulnerability in Linux
17-02-2016 4:48 PM
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Re: Major vulnerability in Linux
17-02-2016 8:45 PM
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Quote from: Mook Just done a system update on my Arch Linux machine and guess what I got : glibc-2.22-4-x86_64
I didn't do an update on my LMDE (Debian) machine
and guess what I got?
Quote ldd --version
Quote ldd (Debian GLIBC 2.19-18+deb8u3) 2.19
Copyright (C) 2014 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.
AFAIK Debian GLIBC 2.19-18+deb8u3 is a fixed version - although I believe
Libre Office includes GLIBC 2.19-18+deb8u2 (which is the bug version), update issued.
"In The Beginning Was The Word, And The Word Was Aardvark."
Re: Major vulnerability in Linux
18-02-2016 10:54 AM
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Quote from: ejs It's only being announced now because the fixes are ready.
Typical!
Well, they are still working on wheezy RPi https://www.raspberrypi.org/forums/viewtopic.php?t=136598&p=907941
I'm testing jessie (with updates) now.
Re: Major vulnerability in Linux
18-02-2016 10:56 AM
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Chill out and have a beer
Re: Major vulnerability in Linux
18-02-2016 12:36 PM
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"by plugwash » Thu Feb 18, 2016 11:45 am
Version 2.13-38+rpi2+deb7u10 should now be available."
YUP!
sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be upgraded:
libc-bin libc-dev-bin libc6 libc6-dev locales multiarch-support
6 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 13.7 MB of archives.
After this operation, 638 kB disk space will be freed.
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