USN-142-1: sudo vulnerability

Posted by Philipp Esselbach on: 06/21/2005 07:57 AM [ Print | 0 comment(s) ]

A sudo update is available for Ubuntu Linux

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Ubuntu Security Notice USN-142-1 June 21, 2005
sudo vulnerability
CAN-2005-1993
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A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog)
Ubuntu 5.04 (Hoary Hedgehog)

The following packages are affected:

sudo

The problem can be corrected by upgrading the affected package to version 1.6.7p5-1ubuntu4.2 (for Ubuntu 4.10), or 1.6.8p5-1ubuntu2.1 (for Ubuntu 5.04). In general, a standard system upgrade is sufficient to effect the necessary changes.

Details follow:

Charles Morris discovered a race condition in sudo which could lead to privilege escalation. If /etc/sudoers allowed a user the execution of selected programs, and this was followed by another line containing the pseudo-command "ALL", that user could execute arbitrary commands with sudo by creating symbolic links at a certain time.

Please note that this does not affect a standard Ubuntu installation.

Updated packages for Ubuntu 4.10 (Warty Warthog):

Source archives:

http://security.ubuntu.com/ubuntu/pool/main/s/sudo/sudo_1.6.7p5-1ubuntu4.2.diff.gz
Size/MD5: 19738 c0823e3947f35d25f259e7fd8f16f087
http://security.ubuntu.com/ubuntu/pool/main/s/sudo/sudo_1.6.7p5-1ubuntu4.2.dsc
Size/MD5: 585 75d7496b2ccc5d4156cf64f7734e4671
http://security.ubuntu.com/ubuntu/pool/main/s/sudo/sudo_1.6.7p5.orig.tar.gz
Size/MD5: 349785 55d503e5c35bf1ea83d38244e0242aaf

amd64 architecture (Athlon64, Opteron, EM64T Xeon)

http://security.ubuntu.com/ubuntu/pool/main/s/sudo/sudo_1.6.7p5-1ubuntu4.2_amd64.deb
Size/MD5: 156152 a1b87562400cf5bed227cb36c8f84f89

i386 architecture (x86 compatible Intel/AMD)

http://security.ubuntu.com/ubuntu/pool/main/s/sudo/sudo_1.6.7p5-1ubuntu4.2_i386.deb
Size/MD5: 145582 7bbe9545270debdfbb783470aec52da3

powerpc architecture (Apple Macintosh G3/G4/G5)

http://security.ubuntu.com/ubuntu/pool/main/s/sudo/sudo_1.6.7p5-1ubuntu4.2_powerpc.deb
Size/MD5: 153136 8de2ac3f51917aa5a7f036075567e68d

Updated packages for Ubuntu 5.04 (Hoary Hedgehog):

Source archives:

http://security.ubuntu.com/ubuntu/pool/main/s/sudo/sudo_1.6.8p5-1ubuntu2.1.diff.gz
Size/MD5: 23451 560c7ca527526d804009152f1a64752f
http://security.ubuntu.com/ubuntu/pool/main/s/sudo/sudo_1.6.8p5-1ubuntu2.1.dsc
Size/MD5: 585 024e53a1dc3320b92c3def3278e93b1b
http://security.ubuntu.com/ubuntu/pool/main/s/sudo/sudo_1.6.8p5.orig.tar.gz
Size/MD5: 584832 03538d938b8593d6f1d66ec6c067b5b5

amd64 architecture (Athlon64, Opteron, EM64T Xeon)

http://security.ubuntu.com/ubuntu/pool/main/s/sudo/sudo_1.6.8p5-1ubuntu2.1_amd64.deb
Size/MD5: 170290 b730a59f092cbdf22fc3f0649ec55b7f

i386 architecture (x86 compatible Intel/AMD)

http://security.ubuntu.com/ubuntu/pool/main/s/sudo/sudo_1.6.8p5-1ubuntu2.1_i386.deb
Size/MD5: 158592 6383525dc85c777200a0f90304dfef41

powerpc architecture (Apple Macintosh G3/G4/G5)

http://security.ubuntu.com/ubuntu/pool/main/s/sudo/sudo_1.6.8p5-1ubuntu2.1_powerpc.deb
Size/MD5: 165296 3b4399b3149cde69961cb3a9140671a9