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Category:   Application (Generic)  >   xpcd Vendors:   Knorr, Gerd
(Debian Issues Fix) xpcd Buffer Overflow in Processing Filenames Lets Remote Users Execute Arbitrary Code With Root Privileges
SecurityTracker Alert ID:  1013164
SecurityTracker URL:  http://securitytracker.com/id/1013164
CVE Reference:   CVE-2005-0074   (Links to External Site)
Date:  Feb 11 2005
Impact:   Execution of arbitrary code via local system, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.09 and prior versions
Description:   A vulnerability was reported in xpcd. A local user may be able to obtain root privileges.

A local user can supply specially crafted input (such as a filename) to trigger a buffer overflow to execute arbitrary code with root privileges.

The buffer overflows reside in 'test/view.c' and 'xpcd/complete.c'.

Erik Sjolund discovered these overflows.

Impact:   A local user can execute arbitrary code with root privileges.
Solution:   Debian has released a fix.

Debian GNU/Linux 3.0 alias woody:

Source archives:

http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3.dsc
Size/MD5 checksum: 706 b1e7b8aeafd929cd31f9403b6534c86b
http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3.diff.gz
Size/MD5 checksum: 14837 e67ca4ae6f6c0cc09033e195ad188825
http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08.orig.tar.gz
Size/MD5 checksum: 103104 59bf5b8d0466ecb3c58ed1fffcdf499e

Alpha architecture:

http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_alpha.deb
Size/MD5 checksum: 81170 17302a158ec404cf6b7961b8434cec33
http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_alpha.deb
Size/MD5 checksum: 13494 a0a1cec324c9c5fb202e18f33ee5fa59

ARM architecture:

http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_arm.deb
Size/MD5 checksum: 68116 7219d4fbdf1602941a2e17bb136ab348
http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_arm.deb
Size/MD5 checksum: 11954 c47772b3c30cfc26be6f7c53450225bc

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_i386.deb
Size/MD5 checksum: 64336 33d7f7a4ddf29576e4a37b89c3feb8eb
http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_i386.deb
Size/MD5 checksum: 11840 3234d80da9074230309b8ac5e3e5e0c3
http://security.debian.org/pool/updates/main/x/xpcd/xpcd-svga_2.08-8woody3_i386.deb
Size/MD5 checksum: 20964 9aba7400f6af8a22c90ff3cb69a44431

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_ia64.deb
Size/MD5 checksum: 97850 88da140c9f83d0f56768e80e08923b82
http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_ia64.deb
Size/MD5 checksum: 15450 9333d80f7e16cf885b5138291969d3fb

HP Precision architecture:

http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_hppa.deb
Size/MD5 checksum: 73434 e479d36155807d7b0b19cf62e40ade42
http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_hppa.deb
Size/MD5 checksum: 12944 cb8feab07d3cb23488f3487192d2f82d

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_m68k.deb
Size/MD5 checksum: 62778 262bc4fa9f4a76c727aa7ae3be63dd02
http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_m68k.deb
Size/MD5 checksum: 11630 0240c6672a38049666b7383e9eb5b193

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_mips.deb
Size/MD5 checksum: 73636 75f8f7d42cdbfd51e505c89516a7966a
http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_mips.deb
Size/MD5 checksum: 12736 f69a68c9c81edb75524945ee2e80b4d7

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_mipsel.deb
Size/MD5 checksum: 73338 50c143655e01f6b5f347520ceab3eb52
http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_mipsel.deb
Size/MD5 checksum: 12710 26ef7c3f8c34638695ec779a68112d26

PowerPC architecture:

http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_powerpc.deb
Size/MD5 checksum: 68606 93640415d6d425b966399df9a1a9d703
http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_powerpc.deb
Size/MD5 checksum: 12040 19f723b6df1e32dbc5f57affba9ba773

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_s390.deb
Size/MD5 checksum: 69770 97d7acf4119d481466e656d3889da854
http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_s390.deb
Size/MD5 checksum: 12636 d30e6ca31aa772884d92c245cc88bd35

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_sparc.deb
Size/MD5 checksum: 72888 3b961c03a13520a27d3d87f45d8bf19f
http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_sparc.deb
Size/MD5 checksum: 11918 b5d3f11a60c394b60eee9d42bae4af70

Vendor URL:  linux.bytesex.org/fbida/xpcd.html (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Debian)
Underlying OS Comments:  3.0

Message History:   This archive entry is a follow-up to the message listed below.
Feb 11 2005 xpcd Buffer Overflow in Processing Filenames Lets Remote Users Execute Arbitrary Code With Root Privileges



 Source Message Contents

Subject:  [SECURITY] [DSA 676-1] New xpcd packages fix arbitrary code execution as root


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- --------------------------------------------------------------------------
Debian Security Advisory DSA 676-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
February 11th, 2005                     http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : xpcd
Vulnerability  : buffer overflow
Problem-Type   : local
Debian-specific: no
CVE ID         : CAN-2005-0074

PhotoCD viewer.  xpcd-svga is part of xpcd and uses svgalib to display
graphics on the Linux console for which root permissions are required.
A malicious user could overflow a fixed-size buffer and may cause the
program to execute arbitrary code with elevated privileges.

For the stable distribution (woody) this problem has been fixed in
version 2.08-8woody3.

For the unstable distribution (sid) this problem will be fixed soon.

We recommend that you upgrade your xpcd-svga package immediately.


Upgrade Instructions
- --------------------

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 3.0 alias woody
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3.dsc
      Size/MD5 checksum:      706 b1e7b8aeafd929cd31f9403b6534c86b
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3.diff.gz
      Size/MD5 checksum:    14837 e67ca4ae6f6c0cc09033e195ad188825
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08.orig.tar.gz
      Size/MD5 checksum:   103104 59bf5b8d0466ecb3c58ed1fffcdf499e

  Alpha architecture:

    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_alpha.deb
      Size/MD5 checksum:    81170 17302a158ec404cf6b7961b8434cec33
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_alpha.deb
      Size/MD5 checksum:    13494 a0a1cec324c9c5fb202e18f33ee5fa59

  ARM architecture:

    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_arm.deb
      Size/MD5 checksum:    68116 7219d4fbdf1602941a2e17bb136ab348
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_arm.deb
      Size/MD5 checksum:    11954 c47772b3c30cfc26be6f7c53450225bc

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_i386.deb
      Size/MD5 checksum:    64336 33d7f7a4ddf29576e4a37b89c3feb8eb
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_i386.deb
      Size/MD5 checksum:    11840 3234d80da9074230309b8ac5e3e5e0c3
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd-svga_2.08-8woody3_i386.deb
      Size/MD5 checksum:    20964 9aba7400f6af8a22c90ff3cb69a44431

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_ia64.deb
      Size/MD5 checksum:    97850 88da140c9f83d0f56768e80e08923b82
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_ia64.deb
      Size/MD5 checksum:    15450 9333d80f7e16cf885b5138291969d3fb

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_hppa.deb
      Size/MD5 checksum:    73434 e479d36155807d7b0b19cf62e40ade42
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_hppa.deb
      Size/MD5 checksum:    12944 cb8feab07d3cb23488f3487192d2f82d

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_m68k.deb
      Size/MD5 checksum:    62778 262bc4fa9f4a76c727aa7ae3be63dd02
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_m68k.deb
      Size/MD5 checksum:    11630 0240c6672a38049666b7383e9eb5b193

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_mips.deb
      Size/MD5 checksum:    73636 75f8f7d42cdbfd51e505c89516a7966a
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_mips.deb
      Size/MD5 checksum:    12736 f69a68c9c81edb75524945ee2e80b4d7

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_mipsel.deb
      Size/MD5 checksum:    73338 50c143655e01f6b5f347520ceab3eb52
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_mipsel.deb
      Size/MD5 checksum:    12710 26ef7c3f8c34638695ec779a68112d26

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_powerpc.deb
      Size/MD5 checksum:    68606 93640415d6d425b966399df9a1a9d703
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_powerpc.deb
      Size/MD5 checksum:    12040 19f723b6df1e32dbc5f57affba9ba773

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_s390.deb
      Size/MD5 checksum:    69770 97d7acf4119d481466e656d3889da854
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_s390.deb
      Size/MD5 checksum:    12636 d30e6ca31aa772884d92c245cc88bd35

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/x/xpcd/xpcd_2.08-8woody3_sparc.deb
      Size/MD5 checksum:    72888 3b961c03a13520a27d3d87f45d8bf19f
    http://security.debian.org/pool/updates/main/x/xpcd/xpcd-gimp_2.08-8woody3_sparc.deb
      Size/MD5 checksum:    11918 b5d3f11a60c394b60eee9d42bae4af70


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

- ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>

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