[Full-disclosure] [USN-234-1] cpio vulnerability



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Ubuntu Security Notice USN-234-1 January 02, 2006
cpio vulnerability
CVE-2005-4268
===========================================================

A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog)
Ubuntu 5.04 (Hoary Hedgehog)
Ubuntu 5.10 (Breezy Badger)

The following packages are affected:

cpio

The problem can be corrected by upgrading the affected package to
version 2.5-1.1ubuntu0.3 (for Ubuntu 4.10), 2.5-1.1ubuntu1.2 (for
Ubuntu 5.04), or 2.5-1.2ubuntu1.1 (for Ubuntu 5.10). In general, a
standard system upgrade is sufficient to effect the necessary changes.

Details follow:

Richard Harms discovered that cpio did not sufficiently validate file
properties when creating archives. Files with e. g. a very large size
caused a buffer overflow. By tricking a user or an automatic backup
system into putting a specially crafted file into a cpio archive, a
local attacker could probably exploit this to execute arbitrary code
with the privileges of the target user (which is likely root in an
automatic backup system).


Updated packages for Ubuntu 4.10:

Source archives:

http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu0.3.diff.gz
Size/MD5: 27861 30d956e1d7c6169dd30bcf4f85e198ec
http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu0.3.dsc
Size/MD5: 551 9cca8af73c1661423f75b5ca39dc3fd5
http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5.orig.tar.gz
Size/MD5: 185480 e02859af1bbbbd73fcbf757acb57e0a4

amd64 architecture (Athlon64, Opteron, EM64T Xeon)

http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu0.3_amd64.deb
Size/MD5: 68856 253028eac0406c5742831edd9f7cc2e7

i386 architecture (x86 compatible Intel/AMD)

http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu0.3_i386.deb
Size/MD5: 64370 96ef06af0acb7eba610bab20b6552aa8

powerpc architecture (Apple Macintosh G3/G4/G5)

http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu0.3_powerpc.deb
Size/MD5: 67910 2b3012a5c0529d6589d779285455e444

Updated packages for Ubuntu 5.04:

Source archives:

http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu1.2.diff.gz
Size/MD5: 27858 6d167bf59160bb49a356ad63aaf46ddd
http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu1.2.dsc
Size/MD5: 551 671b6542bb14aff13d27c5ff20e048e8
http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5.orig.tar.gz
Size/MD5: 185480 e02859af1bbbbd73fcbf757acb57e0a4

amd64 architecture (Athlon64, Opteron, EM64T Xeon)

http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu1.2_amd64.deb
Size/MD5: 68910 1fa1ee8b327076ac4f7ba78c4f31f46d

i386 architecture (x86 compatible Intel/AMD)

http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu1.2_i386.deb
Size/MD5: 64192 a7fb45e72550bc1d5ec14bb073ffc000

powerpc architecture (Apple Macintosh G3/G4/G5)

http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu1.2_powerpc.deb
Size/MD5: 67938 3128b5006e24b0ab36fe8658b27bd15e

Updated packages for Ubuntu 5.10:

Source archives:

http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.2ubuntu1.1.diff.gz
Size/MD5: 27910 67535b38785a093b63e96989d15ce73b
http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.2ubuntu1.1.dsc
Size/MD5: 551 4831459b57acf5981235835a47f9e91b
http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5.orig.tar.gz
Size/MD5: 185480 e02859af1bbbbd73fcbf757acb57e0a4

amd64 architecture (Athlon64, Opteron, EM64T Xeon)

http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.2ubuntu1.1_amd64.deb
Size/MD5: 70568 cb8fa678380262c7f36a5eca7f75a8bf

i386 architecture (x86 compatible Intel/AMD)

http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.2ubuntu1.1_i386.deb
Size/MD5: 64630 882a2257d4658556bd0782f51ce49884

powerpc architecture (Apple Macintosh G3/G4/G5)

http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.2ubuntu1.1_powerpc.deb
Size/MD5: 68776 1d761237abc915aa6bdd3b5d7ad5e5f3

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