Is this a hacking attempt?

2015-01-20 Thread Marko Randjelovic
I was running Wheezy Iceweasel with vanilla 3.14 kernel with grsec. I
tried to play video on YouTube with gnash plugin but Iceweasel crashed
with alike messages

execution attempt in ...
Terminating task /usr/lib/iceweasel/iceweasel

Full log can be found on http://paste.lisp.org/+343V

Kind regards

-- 
http://markorandjelovic.hopto.org

One should not be afraid of humans.
Well, I am not afraid of humans, but of what is inhuman in them.
Ivo Andric, Signs near the travel-road


-- 
To UNSUBSCRIBE, email to debian-security-requ...@lists.debian.org
with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Archive: https://lists.debian.org/20150120124007.06ee2...@eunet.rs



Re: Is this a hacking attempt?

2015-01-20 Thread Tomasz Ciolek
 Hi there


On Tue, Jan 20, 2015 at 12:40:07PM +0100, Marko Randjelovic wrote:
 I was running Wheezy Iceweasel with vanilla 3.14 kernel with grsec. I
 tried to play video on YouTube with gnash plugin but Iceweasel crashed
 with alike messages
 
 execution attempt in ...
 Terminating task /usr/lib/iceweasel/iceweasel
 
 Full log can be found on http://paste.lisp.org/+343V

I could not find DNS entries for the pastebin... 

But do you get similar issues withthe flashplugin-nonfree pakage? 

Cheers
Tomasz Ciolek

-- 
Tomasz M. Ciolek
***
 tmc at vandradlabs dot com dot au 
***
   GPG Key ID:  0x41C4C2F0
   GPG Key Fingerprint: 3883 B308 8256 2246 D3ED  A1FF 3A1D 0EAD 41C4 C2F0
   Key available on good key-servers
***


signature.asc
Description: Digital signature


Re: Is this a hacking attempt?

2015-01-20 Thread Vincent Deffontaines

Le 2015-01-20 12:40, Marko Randjelovic a écrit :

I was running Wheezy Iceweasel with vanilla 3.14 kernel with grsec. I
tried to play video on YouTube with gnash plugin but Iceweasel 
crashed

with alike messages

execution attempt in ...
Terminating task /usr/lib/iceweasel/iceweasel

Full log can be found on http://paste.lisp.org/+343V




Hi,


My understanding from the grsec logs you pasted is that gnash tried to 
allocate more memory than your RLIMIT-MEMLOCK limit (65536), and this is 
the reason why gnash crashed.
I wouldn't hint this is sufficient to conclude in hacking. Flash is 
known well enough for eating a lot of memory at times.
I would suggest either to try playing similar flash from trusted 
sources (good luck finding them though, maybe @adobe.com - One might 
also believe youtube.com is a trusted source ) and see if the plugin 
crashes on them too ; or maybe to raise limit progressively to see where 
it is accepted.


As a side note, youtube supports HTML5, and if your browser had no 
flash support at all but HTML5 support, then you, your grsec kernel, and 
all kittens in the world could just be delighted and still have youtube 
content played fine.


Cheers,

Vincent



--
To UNSUBSCRIBE, email to debian-security-requ...@lists.debian.org
with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Archive: https://lists.debian.org/01628a71ffdcbbaab3e6816de3861...@raceme.org



Re: Is this a hacking attempt?

2015-01-20 Thread Marko Randjelovic
On Tue, 20 Jan 2015 17:52:05 +0100
Vincent Deffontaines vinc...@gryzor.com wrote:

 Le 2015-01-20 12:40, Marko Randjelovic a écrit :
  I was running Wheezy Iceweasel with vanilla 3.14 kernel with grsec. I
  tried to play video on YouTube with gnash plugin but Iceweasel 
  crashed
  with alike messages
 
  execution attempt in ...
  Terminating task /usr/lib/iceweasel/iceweasel
 
  Full log can be found on http://paste.lisp.org/+343V
 
 
 
 Hi,
 
 
 My understanding from the grsec logs you pasted is that gnash tried to 
 allocate more memory than your RLIMIT-MEMLOCK limit (65536), and this is 
 the reason why gnash crashed.
 I wouldn't hint this is sufficient to conclude in hacking. Flash is 
 known well enough for eating a lot of memory at times.
 I would suggest either to try playing similar flash from trusted 
 sources (good luck finding them though, maybe @adobe.com - One might 
 also believe youtube.com is a trusted source ) and see if the plugin 
 crashes on them too ; or maybe to raise limit progressively to see where 
 it is accepted.

I tried to raise limit some time ago, but I was unsuccessful. Do you
know how to do it?

 
 As a side note, youtube supports HTML5, and if your browser had no 
 flash support at all but HTML5 support, then you, your grsec kernel, and 
 all kittens in the world could just be delighted and still have youtube 
 content played fine.

Fortunately, this works, but there are sites where doesn't. 

 
 Cheers,
 
 Vincent
 
 
 

-- 
http://markorandjelovic.hopto.org

One should not be afraid of humans.
Well, I am not afraid of humans, but of what is inhuman in them.
Ivo Andric, Signs near the travel-road


--
To UNSUBSCRIBE, email to debian-security-requ...@lists.debian.org
with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Archive: https://lists.debian.org/20150120194203.1380e...@eunet.rs



Re: Is this a hacking attempt?

2015-01-20 Thread Paul Wise
On Wed, Jan 21, 2015 at 2:42 AM, Marko Randjelovic wrote:

 Fortunately, this works, but there are sites where doesn't.

Do you have any examples of sites that still need Flash? Obviously
flash game sites still need it but surely almost all of the web has
moved away from it at this point?

-- 
bye,
pabs

https://wiki.debian.org/PaulWise


-- 
To UNSUBSCRIBE, email to debian-security-requ...@lists.debian.org
with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Archive: 
https://lists.debian.org/CAKTje6G-1TdS8UXqcCvupPWjw=tc+zrmwwukr+cmlmxaccr...@mail.gmail.com



Re: [SECURITY] [DSA 3134-1] sympa security update

2015-01-20 Thread Uffe Pensar
hej,

du  har säkert sett

-uffe


On 20.1.2015 22:51, Salvatore Bonaccorso wrote:
 -
 Debian Security Advisory DSA-3134-1   secur...@debian.org
 http://www.debian.org/security/  Salvatore Bonaccorso
 January 20, 2015   http://www.debian.org/security/faq
 -
 
 Package: sympa
 
 A vulnerability has been discovered in the web interface of sympa, a
 mailing list manager. An attacker could take advantage of this flaw in
 the newsletter posting area, which allows sending to a list, or to
 oneself, any file located on the server filesystem and readable by the
 sympa user.
 
 For the stable distribution (wheezy), this problem has been fixed in
 version 6.1.11~dfsg-5+deb7u2.
 
 For the upcoming stable distribution (jessie), this problem will be
 fixed soon.
 
 For the unstable distribution (sid), this problem has been fixed in
 version 6.1.23~dfsg-2.
 
 We recommend that you upgrade your sympa packages.
 
 Further information about Debian Security Advisories, how to apply
 these updates to your system and frequently asked questions can be
 found at: https://www.debian.org/security/
 
 Mailing list: debian-security-annou...@lists.debian.org
 
 

-- 
Ulf Pensar
Chefplanerare/Datasäkerhetschef
Datacentralen

Tel: +358 050-5643735

Hanken Svenska handelshögskolan
Biblioteksgatan 16
Box 287, 65101 VASA, FINLAND


-- 
To UNSUBSCRIBE, email to debian-security-requ...@lists.debian.org
with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Archive: https://lists.debian.org/54bf45b6.30...@hanken.fi



Re: Is this a hacking attempt?

2015-01-20 Thread Jann Horn
On Tue, Jan 20, 2015 at 07:42:03PM +0100, Marko Randjelovic wrote:
  My understanding from the grsec logs you pasted is that gnash tried to 
  allocate more memory than your RLIMIT-MEMLOCK limit (65536), and this is 
  the reason why gnash crashed.
  I wouldn't hint this is sufficient to conclude in hacking. Flash is 
  known well enough for eating a lot of memory at times.
  I would suggest either to try playing similar flash from trusted 
  sources (good luck finding them though, maybe @adobe.com - One might 
  also believe youtube.com is a trusted source ) and see if the plugin 
  crashes on them too ; or maybe to raise limit progressively to see where 
  it is accepted.
 
 I tried to raise limit some time ago, but I was unsuccessful. Do you
 know how to do it?

I believe that man 5 limits.conf helps.


signature.asc
Description: Digital signature