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Debian: New ldm packages fix information disclosure
by Patrick Lenz, in Security - Mon, May 5th 2008 03:36 PDT
Christian Herzog discovered that within the Linux Terminal Server Project, it was possible to connect to X on any LTSP client from any host on the network, making client windows and keystrokes visible to that host. Fixed packages are available from security.debian.org.
Links:
security.debian.org
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Debian Security Advisory DSA-1561-1 security@debian.org
http://www.debian.org/security/ Thijs Kinkhorst
April 28, 2008 http://www.debian.org/security/faq
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Package : ldm
Vulnerability : programming error
Problem type : remote
Debian-specific: no
CVE Id(s) : CVE-2008-1293
Debian Bug : 469462
Christian Herzog discovered that within the Linux Terminal Server Project,
it was possible to connect to X on any LTSP client from any host on the
network, making client windows and keystrokes visible to that host.
NOTE: most ldm installs are likely to be in a chroot environment exported
over NFS, and will not be upgraded merely by upgrading the server itself.
For example, on the i386 architecture, to upgrade ldm will likely require:
chroot /opt/ltsp/i386 apt-get update
chroot /opt/ltsp/i386 apt-get dist-upgrade
For the stable distribution (etch), this problem has been fixed in
version 0.99debian11+etch1.
For the unstable distribution (sid), this problem has been fixed in
version 2:0.1~bzr20080308-1.
We recommend that you upgrade your ldm package.
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 4.0 alias etch
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Source archives:
http://security.debian.org/pool/updates/main/l/ltsp/ltsp_0.99debian11+etch1.tar.gz
Size/MD5 checksum: 183019 c97fa50f7a30f213742be6466a7817fc
http://security.debian.org/pool/updates/main/l/ltsp/ltsp_0.99debian11+etch1.dsc
Size/MD5 checksum: 1243 c8d0f83f26c580a9fcf5079d303c1958
Architecture independent packages:
http://security.debian.org/pool/updates/main/l/ltsp/ltsp-server-standalone_0.99debian11+etch1_all.deb
Size/MD5 checksum: 22346 edf27d69321dc6db44cb252719aad12b
http://security.debian.org/pool/updates/main/l/ltsp/ltsp-client-builder_0.99debian11+etch1_all.udeb
Size/MD5 checksum: 2278 bd0856196c64cfcabc1c0f47808b5f4c
http://security.debian.org/pool/updates/main/l/ltsp/ltsp-server_0.99debian11+etch1_all.deb
Size/MD5 checksum: 53332 70be96c089a449a543cfb678e55a0f1e
http://security.debian.org/pool/updates/main/l/ltsp/ldm_0.99debian11+etch1_all.deb
Size/MD5 checksum: 116452 51fa6e495db54926e77aa7f62a251dff
alpha architecture (DEC Alpha)
http://security.debian.org/pool/updates/main/l/ltsp/ltsp-client_0.99debian11+etch1_alpha.deb
Size/MD5 checksum: 50686 145f4579f02af33e644674b0a2ecff67
amd64 architecture (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/l/ltsp/ltsp-client_0.99debian11+etch1_amd64.deb
Size/MD5 checksum: 50638 9ea8d9f916b011a9f5379ed31f8a7cc7
arm architecture (ARM)
http://security.debian.org/pool/updates/main/l/ltsp/ltsp-client_0.99debian11+etch1_arm.deb
Size/MD5 checksum: 49608 8c1b8f8908b2099c8f97946144dd7ca0
hppa architecture (HP PA RISC)
http://security.debian.org/pool/updates/main/l/ltsp/ltsp-client_0.99debian11+etch1_hppa.deb
Size/MD5 checksum: 50448 08ca2c9cdc6bc5a274bb7114495e0e7d
i386 architecture (Intel ia32)
http://security.debian.org/pool/updates/main/l/ltsp/ltsp-client_0.99debian11+etch1_i386.deb
Size/MD5 checksum: 49302 b20a0740d53c1c6aeffdab69b2bb14bf
ia64 architecture (Intel ia64)
http://security.debian.org/pool/updates/main/l/ltsp/ltsp-client_0.99debian11+etch1_ia64.deb
Size/MD5 checksum: 55934 b614ff92f4cb3dcea9329ea219f77a60
mips architecture (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/l/ltsp/ltsp-client_0.99debian11+etch1_mips.deb
Size/MD5 checksum: 50166 298ad47e264bf2b3e3b69fd52f772df1
mipsel architecture (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/l/ltsp/ltsp-client_0.99debian11+etch1_mipsel.deb
Size/MD5 checksum: 50914 770ee6fa07216c0a2a0da7922d820ea7
powerpc architecture (PowerPC)
http://security.debian.org/pool/updates/main/l/ltsp/ltsp-client_0.99debian11+etch1_powerpc.deb
Size/MD5 checksum: 50602 3b30a76ae56aedbfdc67c2bd975eefd6
s390 architecture (IBM S/390)
http://security.debian.org/pool/updates/main/l/ltsp/ltsp-client_0.99debian11+etch1_s390.deb
Size/MD5 checksum: 51558 9c2f6986508538205f6e5d937a9bc8d7
These files will probably be moved into the stable distribution on
its next update.
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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 ' and http://packages.debian.org/
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