North Korea sends new blockade to North Korea, PM announces to stand beside Rohingyas
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Jill Kargman Used Real-Life Rich People Accidents for Odd Mom Out - Duration: 6:33.
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Living Colour: "Come On" - Duration: 3:49.
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Hill police vs gangster gameplay android how to crime-alwayshappy - Duration: 11:23.
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எடா கூடமாக கிளிக் செய்யப்பட்ட படங்கள் | Tamil Cinema News Kollywood | BINGO TV - Duration: 3:23.
For more infomation >> எடா கூடமாக கிளிக் செய்யப்பட்ட படங்கள் | Tamil Cinema News Kollywood | BINGO TV - Duration: 3:23. -------------------------------------------
Get Relief From Neck Pain With In 60 Seconds Only - Duration: 8:13.
Nick pain simple remedies neck pain can cause
serious discomfort and uneasiness neck pain often is a combined with headaches
numbness tingling stiffness tenderness difficulties following and swelling in
the neck neck pain can be a result of variety of issues like constantly
sitting in front of a computer slipping in improper position sprain and
etc neck pain usually is not a serious condition and can be treated naturally
here are the top natural remedies for neck pain cayenne pepper cayenne pepper
has analgesic and anti-inflammatory properties that helps reduce muscle pain
you need to add one teaspoon of cayenne pepper powder - 2 tablespoons of
lukewarm water lukewarm olive oil mix it well and then apply it on the sore
muscles in your neck area after massaging 15 minutes
wipe it off turmeric turmeric helps improve blood circulation in the
affected area which helps speed up the recovery process mix 1 teaspoon of
turmeric powder in a glass of milk and heated over low heat for 5 minutes
remove from heat and add little honey and allow to cool drink this milk twice
a day until your pain is reduced after cider vinegar apple cider vinegar has
anti-inflammatory benefits soak a soft cloth or a paper towel in apple cider
vinegar place it over the affected part of your neck leave it on for a couple of
hours repeat twice daily until the pain is gone ginger ginger can reduce
inflammation associated to your neck pain take a fresh ginger and simmer it
in some hot water for half an hour use this for making your cup of tea or drink
it as it is hot water while you go for bath keep bearable hot water separately
in a mug just to use it for your neck target the neck area with hot water for
3 to 4 minutes in ash switch it to cold water and target the
neck for 30 to 60 seconds repeat multiple times until you get relief home
remedies for chest pain chest pain is caused by reducing blood flow to the
heart people describe it as a feeling of tightness squeezing heaviness burning
and pressure behind the breasts here are some home remedies for chest pain remedy
1 onion juice onions are easily available at everyone's house so take 1
onion cut into pieces make juice out of it take 2 tbsp of onion juice and 1 tbsp
of honey mix well take this onion juice daily early morning on empty stomach it
reduces high blood pressure and high cholesterol and reduces the risk of
heart diseases you will get relief from the chest pain home remedy to ginger
when suffering from chest pain drink a cup of ginger tea to make this tea take
ginger and some water let's start the preparation take some water and boil it
for five minutes now add some ginger and allow it to boil for five minutes
after boiling for five minutes filter this water into a glass take this
ginger tea once in a day you will get great relief in your chest pain for
cardiovascular health eat a small piece of ginger daily on empty stomach by
doing this you will get great relief from your chest pain remedy 3 turmeric
take some milk and boil it for few minutes add a pinch of turmeric powder
take this milk into a glass add one tablespoon of honey to it mix well take
this milk twice in a day to improve your heart health as turmeric is having so
many anti-inflammatory characters included in your regular cooking by
doing this you can reduce your chest pain remedy 3 pepper for this we need a
glass of milk and pepper powder take a glass of milk
add 1/4 tablespoon of pepper mix it well
take this milk twice a day you will get relief in your chest pain potato garlic
cinnamon powder Castrol and honey garlic regular
conception of garlic can help you to reduce joint pains garlic is a
miraculous fruit it is having so many medicinal properties it is a great
anti-inflammatory agent by taking regularly garlic in your diet you can
reduce your joint pains castor oil castor oil is filled with various super
healing and medicinal powers a regular massage with castor oil for 15 minutes
can bring relief to joint pains potato since potato is rich in carbohydrates it
helps to reduce our thirties to very large extent having potato juice every
day can bring relief from our thirties and joint pains potato is having so many
anti-inflammatory properties by adding potato in your diet you can reduce joint
pains cinnamon powder and honey the healing properties of honey and cinnamon
powder reduces joint pains and keeps you fit and healthy let's start the process
take 1 tablespoon of honey
one tablespoon of cinnamon powder mix well have this mixture daily twice you
will get relief in your joint paints thank you for watching this video like
and subscribe for more videos
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De Mijn inTwente app - Duration: 1:02.
For more infomation >> De Mijn inTwente app - Duration: 1:02. -------------------------------------------
#LifeChangingPlaces: Gesa in Afrika | Lufthansa - Duration: 0:31.
Sometimes I still can't believe it.
I used to be a TV editor in Berlin.
I had developed a life for myself that actually didn't suit me at all.
Then I came to South Africa and I really didn't want to leave.
Two years later I was a ranger.
I was looking for that inner calm.
And without this wild place, I would never have found it.
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Fuzzing and Investigating Bugs in ImageMagick - Duration: 9:35.
Hello everyone. We are testing team 6 and
as part of assignment 2 we will fuzz a
real-world software and try to find
crashes and analyze them. In doing so we
will also evaluate the performance of
the fuzzer itself. The software that we
are fuzzing is called ImageMagick
because it is one of the most widely
used image manipulation tools in Linux
and has quite some vulnerabilities
as you can see from the link given in
the readme file. To be exact its utility
convert is what we will be fuzzing.
We are using two versions of imagemagick.
The older version 6.7.7-10 and
the latest version is 7.0.5-4.
The reason why were using these two versions
is because we want to discover some bugs
in the older version and see whether
they have been fixed in the newer version
and how exactly they has been fixed by
looking at the source code. All
information you need on how to set up
the system is given in the readme file
along with links on extra information. We
will first explain the setup then we
will fuzz the two software, show you
the results and then we will move on to
analyze one crash and one hang. We will
conclude by telling you about some of
the road bumps that we faced along the way
that you should be considerate about when
creating the experiment. So let's begin!
AFL is already installed as described in
the readme. The seed image archive was
also downloaded here and the PNG's were
copied to the test folder here. Now
building the software: Go to each of the
software directory and enter this command.
We will be setting the compiler to AFL-GCC
which is basically a wrapper over
the standard GCC but it also instruments
the binary so that AFL can work on it.
You can see that we have installed the
older version. Now we can start fuzzing.
Enter the following command to fuzz. We
first specify the input directory as
test and output directory as findings.
Then we write the utility name which is
convert, we enter these two @@
signs which is where the AFL fuzzes the
values and lastly we dump the outputs to
/dev/null/ because we don't really care
about the outputs, what we care about is
whether a certain input caused a crash
or a hang or not. Then AFL goes
through all these test files and
performs a brief dry run to see if any
file immediately causes a crash or a
hang because then it there would be no
point to fuzz, because it is already a
potential solution.
This is how the fuzzing dashboard looks
like. We are mainly interested in unique
hangs and unique crashes. You can leave
it running for at least a day or when at
least one cycle is completed which is
when all the branches are covered at
least once. We could only run it for
maximum a day because of memory
limitations but here's screenshot of our
final state. We managed to find 25
crashes and 131 hangs in the older
version of imagemagick. Once done, proceed
by fuzzing the latest version of
imagemagick by first installing it and
then fuzzing it using the steps I showed
you before. We ran the latest version of
imagemagick for more time but we
couldn't find any crashes in it. We could
only find 112 hangs. For both the cases
we weren't able to complete even a
single cycle because our systems ran out
of memory. So now we analyze the crashes:
We have a simple script here that
quickly iterates over all the crashes
and prints the output
we can see most of these are memory
allocation problems and some of these
are segmentation faults. So let's pick
this file and copy it to a more central
location for convenience. Now let's run
convert in isolation to see what happens.
It is a segmentation fault!! Let's try to
debug it. We run gdb convert and then we
run the crash file. We can see that some
of the source code is printed. Now if we
print the value of quantum_info it gives
us a null pointer and quantum_info->endian
says we cannot access this memory.
And it says it is in quantum.c line
number 133 so let's go to the source
code the method is called AcquireQuantumInfo()
but this is the line of code that causes
the crash.
Let's put a breakpoint on it
and let's run it again.
So we see that the value of status is
MagickFalse and we see that the if block
destroys the quantum_info and
then the developers are using quantum_info
variable again. This is an instance
of use after free vulnerability. Let's
see if this is present in the latest
version as well. You can see that the
version of convert we are using right now is
the latest one. Running the command
doesn't give us a segmentation fault
anymore. However there still seems to be
an issue but it seems like an explicitly
handled exception.
Let's look at the source code of the new
version and upon comparing we can see
that the developers have moved
the line of code above the if block. So,
for the second bug analysis I will shift
to another computer. We will now analyze
a pretty severe but we found which can
be exploited and can potentially
constitute a denial of service attack on
servers that use imagemagick for image
conversion. While this bug was
originally found in the older version, it
is still present in the latest version
of imagemagick. This bug is due to the
excessive trust put into the headers of
a pnm image file. The library keeps a
cache in the form of a temporary file
stored in the file system and keeps
writing into it based on a number of
columns and rows advertised in the
header. It doesn't actually verify
whether these values are true or even
possible at all. As you can see we're
using the latest version of convert and
this is the file that causes the hang
which was given to us by AFL. It was in
the hangs folder.
Since we don't have enough space in our
system we will use the external hard
disk as the temporary directory. Let's
quickly set the temporary directory to
the external hard disk and then run
convert and let's monitor the process. So
you can see that the amount of space
that we have is reducing quite quickly
but it's not possible that a file of
this size is taking that much space. So
let's dig deeper with gdb about what's
going on. So let's run gdb with convert
and set the environment variable to our
hard disk
and then we run the hang file again. We
already know that it will call the hang
so we'll just stop it after a while by
pressing ctrl-c and then we will run
back trace hoping to see a useful stack
trace. So this stack trace is pretty big and
we don't have the time to cover through
all of the functions but we will only
look at the key functions causing the
hang. In particular WritePixelRegion
in cache.C. So let's open the
file
So this function is responsible for
writing into the cache
and this loop is responsible for filling
up the cache and this loop depends on the
dimensions of the cache. The amount of
data it writes into the cache depends on
the dimension of the cache itself and the
dimensions of cache are stored in this
variable called cache_info and this
variable called cache_info is initialized
in a function called openPixelCache
which is called in line 1667 as you can
see. So going back to the source code
locating the declaration of the cache_info structure
and we see that it is
declared here and you can see that
the rows and columns of the cache are the
same as the rows and columns of the
image and the image structure is
initialized in the readPNMImage
function let's set up a breakpoint in
that function and you should expect a
hang when setImageColor in PNM.C
is called. So we run the program again
and we navigate through the code
and these are the values for the rows
and columns of the image so we see that
the rows and columns are initialized to
quite a large number and if you keep
running it, we should run into a hang.
and there's the hang on line 440. Now if
you go back to the header of the file we
can see in the header that the number of
rows a number of columns are shown so
the main takeaway here is that we
shouldn't turst the value of the
header itself without verifying it
because it can be easily faked and they
can actually be exploitable. Lastly we
talk about some of the considerations
that you should keep in mind when trying
to replicate this experiment as shown in
our video . When deciding which software
to fuzz we faced the problem of
determining the right seed test case
that would guide the search for AFL. For
example we tried to fuzz Python and then
AFL itself but couldn't because we
didn't have interesting test cases.
Nor was AFL able to generate any
even after a day of fuzzing. So you might
want to invest in good test cases before
beginning. The developers of AFL claim
that AFL can generate interesting test
cases from non interesting ones but we
argue that it is only possible given
enough resources so if you don't have
interesting test cases make sure to have
enough resources to allow AFL to
generate some itself. Lastly the unique
hangs and unique crashes are not really
unique at all. We found multiple files
causing segmentation fault that all
referred to a single line where the
software crashed. While a path may be
different they are not exactly unique
crashes. Moreover the hangs are not really
hangs at all. Out of 300 hangs only four
or five actually hung our system so it
seems that you can take AFL's word for
it. That concludes our video.
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First Alert: Mix of sun, clouds for your Tuesday - Duration: 1:16.
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How do I use my domain with my Blogger account| Set Up a Custom Domain in Blogger |online imran - Duration: 6:37.
i am show you in this video
How do I use my domain with my Blogger account
In the Publishing section, click on the
link '+ Set up a third-party URL for your blog' to add a custom domain
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Sports Support | Ten Most Beautiful and Hottest Female Wrestlers in 2017 | Hottest WWE Divas - Duration: 5:31.
Sports Support | Ten Most Beautiful and Hottest Female Wrestlers in 2017 | Hottest WWE Divas
Sports Support | Ten Most Beautiful and Hottest Female Wrestlers in 2017 | Hottest WWE Divas
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Most funny China.HÀI TRUNG QUỐC.Clip hài hước siêu bựa,ngu người nhất Trung Quốc P22 - Duration: 20:46.
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有村架純「ひよっこ」新エピソードを撮影?内村光良とコラボ|24H ニュース - Duration: 2:36.
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construction truck simulator android games. how to play truck games-alwayshappy - Duration: 11:54.
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