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Debian: New socat packages fix arbitrary code execution

A stack overflow vulnerability was found in socat that allows an attacker to execute arbitrary code with the privileges of the socat process. Updated packages are available from

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Debian Security Advisory DSA-2090-1                                    Luciano Bello
August 06, 2010             
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Package        : socat
Vulnerability  : incorrect user-input validation
Problem type   : remote
Debian-specific: no
Debian bug     : 591443
CVE ID         : CVE-2010-2799

A stack overflow vulnerability was found in socat that allows an 
attacker to execute arbitrary code with the privileges of the socat

This vulnerability can only be exploited when an attacker is able to 
inject more than 512 bytes of data into socat's argument.

A vulnerable scenario would be a CGI script that reads data from 
clients and uses (parts of) this data as argument for a socat 

For the stable distribution (lenny), this problem has been fixed in 

For the unstable distribution (sid), this problem has been fixed in

We recommend that you upgrade your socat package.

Upgrade instructions
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wget url
       will fetch the file for you
dpkg -i file.deb
       will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
       will update the internal database
apt-get upgrade
       will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.

Debian GNU/Linux 5.0 alias lenny
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Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.

Source archives:
   Size/MD5 checksum:   489105 5a6a1d1e398d5c4d32fa6515baf477af
   Size/MD5 checksum:     1013 157ca774934ca80c6a94c1b741a9093b
   Size/MD5 checksum:     4381 7e52b5124379d307c379b6ecf70284f0

alpha architecture (DEC Alpha)
   Size/MD5 checksum:   341794 8bd7ad19df1117ec16195fa75a127706

amd64 architecture (AMD x86_64 (AMD64))
   Size/MD5 checksum:   330554 3106c700362d15d5f1ef3ebb68e6805c

arm architecture (ARM)
   Size/MD5 checksum:   312612 2a70ed46e9491e800a77823b0217abbb

armel architecture (ARM EABI)
   Size/MD5 checksum:   315430 08e6b5a7b9eda8dbe3173c115c8e1796

hppa architecture (HP PA RISC)
   Size/MD5 checksum:   331510 d1802193cb2a2f28ef51d8c07f5e374b

i386 architecture (Intel ia32)
   Size/MD5 checksum:   316594 24c9775f51968d945266e7a28b9d103a

ia64 architecture (Intel ia64)
   Size/MD5 checksum:   387414 c2bbf057264a8387df441dd3a9bbc330

mips architecture (MIPS (Big Endian))
   Size/MD5 checksum:   333986 48385d0f66ea5397bc718c0e2af6b056

mipsel architecture (MIPS (Little Endian))
   Size/MD5 checksum:   328748 3f2edf664abb7e8318f5a5c3b9c35991

powerpc architecture (PowerPC)
   Size/MD5 checksum:   339838 77db34fb93c8bd07590729d3e1aaa98d

s390 architecture (IBM S/390)
   Size/MD5 checksum:   329612 56dc31e55ccb561742fe751993200255

sparc architecture (Sun SPARC/UltraSPARC)
   Size/MD5 checksum:   312724 96fa647e83461a5f2fd1678d6da6ee27

 These files will probably be moved into the stable distribution on
 its next update.

- ---------------------------------------------------------------------------------
For apt-get: deb stable/updates main
For dpkg-ftp: dists/stable/updates/main
Mailing list:
Package info: `apt-cache show <pkg>' and<pkg>
Version: GnuPG v1.4.10 (GNU/Linux)


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