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RE: [USN-45-1] nasm vulnerability
From: "Todd Towles" <toddtowles () brookshires com>
Date: Wed, 22 Dec 2004 14:26:03 -0600

So now, I just need to trick a user into running a malicious source file
that I assembed and sent him, this makes it much harder.

-----Original Message-----
From: full-disclosure-bounces () lists netsys com 
[mailto:full-disclosure-bounces () lists netsys com] On Behalf 
Of Martin Pitt
Sent: Wednesday, December 22, 2004 4:53 AM
To: ubuntu-security-announce () lists ubuntu com
Cc: bugtraq () securityfocus com; full-disclosure () lists netsys com
Subject: [Full-disclosure] [USN-45-1] nasm vulnerability

===========================================================
Ubuntu Security Notice USN-45-1                 December 22, 2004
nasm vulnerability
CAN-2004-1287
===========================================================

A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog)

The following packages are affected:

nasm

The problem can be corrected by upgrading the affected 
package to version 0.98.38-1ubuntu0.1.  In general, a 
standard system upgrade is sufficient to effect the necessary changes.

Details follow:

Jonathan Rockway discovered a locally exploitable buffer 
overflow in the error() function of nasm. If an attacker 
tricked a user into assembling a malicious source file, they 
could exploit this to execute arbitrary code with the 
privileges of the user that runs nasm.

  Source archives:

    
http://security.ubuntu.com/ubuntu/pool/main/n/nasm/nasm_0.98.3
8-1ubuntu0.1.diff.gz
      Size/MD5:     9013 69265719926bba4907e7da4df681324d
    
http://security.ubuntu.com/ubuntu/pool/main/n/nasm/nasm_0.98.3
8-1ubuntu0.1.dsc
      Size/MD5:      598 b160f2ca70fc5bd4021c1e6e526eaf70
    
http://security.ubuntu.com/ubuntu/pool/main/n/nasm/nasm_0.98.3
8.orig.tar.gz
      Size/MD5:   641727 9c1df91560651cbfaa73595fe6babb85

  amd64 architecture (Athlon64, Opteron, EM64T Xeon)

    
http://security.ubuntu.com/ubuntu/pool/main/n/nasm/nasm_0.98.3
8-1ubuntu0.1_amd64.deb
      Size/MD5:  1586664 2c76de8992b04548754487c9a2aa61dd

  i386 architecture (x86 compatible Intel/AMD)

    
http://security.ubuntu.com/ubuntu/pool/main/n/nasm/nasm_0.98.3
8-1ubuntu0.1_i386.deb
      Size/MD5:  1545538 a9c5d4e5a11f9c0c36a1deb5754eaf68

  powerpc architecture (Apple Macintosh G3/G4/G5)

    
http://security.ubuntu.com/ubuntu/pool/main/n/nasm/nasm_0.98.3
8-1ubuntu0.1_powerpc.deb
      Size/MD5:  1584374 540e0c417178d47713ca0cd60b7fc806


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