[Full-Disclosure] [USN-75-1] cpio vulnerability

From: Martin Pitt (martin.pitt_at_canonical.com)
Date: 02/04/05

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    Date: Fri, 4 Feb 2005 11:23:46 +0100
    To: ubuntu-security-announce@lists.ubuntu.com
    
    
    
    

    ===========================================================
    Ubuntu Security Notice USN-75-1 February 04, 2005
    cpio vulnerability
    CAN-1999-1572
    ===========================================================

    A security issue affects the following Ubuntu releases:

    Ubuntu 4.10 (Warty Warthog)

    The following packages are affected:

    cpio

    The problem can be corrected by upgrading the affected package to
    version 2.5-1.1ubuntu0.1. In general, a standard system upgrade is
    sufficient to effect the necessary changes.

    Details follow:

    Recently it was discovered that cpio created world-writeable files
    when used in -o/--create mode with giving an output file (with -O).
    This allowed any user to modify the created cpio archives. Now cpio
    respects the current umask setting of the user.

    Note: This vulnerability has already been fixed in a very old version
    of cpio, but the fix was never ported to the current version.
    Therefore the CAN number was assigned to the year 1999.

      Source archives:

        http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu0.1.diff.gz
          Size/MD5: 26221 3ca615bf2f07f822aeed0f0a7261b189
        http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu0.1.dsc
          Size/MD5: 551 608c00fb079a716aaa0cd22ecb3481b0
        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_2.5-1.1ubuntu0.1_amd64.deb
          Size/MD5: 68180 4a4263672519f5b84d251ea80c7647cb

      i386 architecture (x86 compatible Intel/AMD)

        http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu0.1_i386.deb
          Size/MD5: 63608 a2c9334648f310639fc23b641abf81c0

      powerpc architecture (Apple Macintosh G3/G4/G5)

        http://security.ubuntu.com/ubuntu/pool/main/c/cpio/cpio_2.5-1.1ubuntu0.1_powerpc.deb
          Size/MD5: 67190 0e150800f5b5b95f2c1d6516138c3c0c

    
    

    
    

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