[USN-537-1] gnome-screensaver vulnerability
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Ubuntu Security Notice USN-537-1 October 23, 2007
gnome-screensaver vulnerability
CVE-2007-3920
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A security issue affects the following Ubuntu releases:
Ubuntu 7.10
This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
The problem can be corrected by upgrading your system to the
following package versions:
Ubuntu 7.10:
gnome-screensaver 2.20.0-0ubuntu4.2
After a standard system upgrade you need to restart your session to affect
the necessary changes.
Details follow:
Jens Askengren discovered that gnome-screensaver became confused when
running under Compiz, and could lose keyboard lock focus. A local
attacker could exploit this to bypass the user's locked screen saver.
Updated packages for Ubuntu 7.10:
Source archives:
http://security.ubuntu.com/ubuntu/pool/main/g/gnome-screensaver/gnome-s=
creensaver_2.20.0-0ubuntu4.2.diff.gz
Size/MD5: 22567 59f266ec6eb94b6a903e19b0ba0ddc0a
http://security.ubuntu.com/ubuntu/pool/main/g/gnome-screensaver/gnome-s=
creensaver_2.20.0-0ubuntu4.2.dsc
Size/MD5: 1245 7a751fbd47821da72e6a980027a48011
http://security.ubuntu.com/ubuntu/pool/main/g/gnome-screensaver/gnome-s=
creensaver_2.20.0.orig.tar.gz
Size/MD5: 2320018 db71d89c66fa3a96b3b276403b5bb723
amd64 architecture (Athlon64, Opteron, EM64T Xeon):
http://security.ubuntu.com/ubuntu/pool/main/g/gnome-screensaver/gnome-s=
creensaver_2.20.0-0ubuntu4.2_amd64.deb
Size/MD5: 1587250 2fdaaea4518774413cc48137d5f71f70
i386 architecture (x86 compatible Intel/AMD):
http://security.ubuntu.com/ubuntu/pool/main/g/gnome-screensaver/gnome-s=
creensaver_2.20.0-0ubuntu4.2_i386.deb
Size/MD5: 1570186 93d6f27e6334ae4022234d3fd165ade9
powerpc architecture (Apple Macintosh G3/G4/G5):
http://security.ubuntu.com/ubuntu/pool/main/g/gnome-screensaver/gnome-s=
creensaver_2.20.0-0ubuntu4.2_powerpc.deb
Size/MD5: 1605514 edeb052d5d0ccaa97085fd69f6b4f25a
sparc architecture (Sun SPARC/UltraSPARC):
http://security.ubuntu.com/ubuntu/pool/main/g/gnome-screensaver/gnome-s=
creensaver_2.20.0-0ubuntu4.2_sparc.deb
Size/MD5: 1576650 9eaac4a063ae54792d052590c9bc4bc1
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