Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2006.0858 -- [UNIX/Linux][Debian]
New flexbackup packages fix symlink vulnerability
21 November 2006
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AusCERT Security Bulletin Summary
---------------------------------
Product: flexbackup
Publisher: Debian
Operating System: Debian GNU/Linux 3.1
UNIX variants (UNIX, Linux, OSX)
Impact: Execute Arbitrary Code/Commands
Overwrite Arbitrary Files
Access: Existing Account
CVE Names: CVE-2005-4802
Original Bulletin: http://www.debian.org/security/2006/dsa-1216
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running flexbackup check for an updated version of the software for
their operating system.
http://www.flexbackup.org/
Also note that the CVE number in the bulletin appears to be incorrect
- it should be CVE-2005-4802.
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Debian Security Advisory DSA 1216-1 security@debian.org
http://www.debian.org/security/ Moritz Muehlenhoff
November 20th, 2006 http://www.debian.org/security/faq
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Package : flexbackup
Vulnerability : insecure temporary file
Problem-Type : local
Debian-specific: no
CVE ID : CVE-2006-4802
Debian Bug : 334350
Eric Romang discovered that the flexbackup backup tool creates temporary
files in an insecure manner, which allows denial of service through a
symlink attack.
For the stable distribution (sarge) this problem has been fixed in
version 1.2.1-2sarge1
For the upcoming stable distribution (etch) this problem has been
fixed in version 1.2.1-3.
For the unstable distribution (sid) this problem has been fixed in
version 1.2.1-3.
We recommend that you upgrade your flexbackup 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 3.1 alias sarge
- - --------------------------------
Source archives:
http://security.debian.org/pool/updates/main/f/flexbackup/flexbackup_1.2.1-2sarge1.dsc
Size/MD5 checksum: 587 06539319d0534272e216306562677723
http://security.debian.org/pool/updates/main/f/flexbackup/flexbackup_1.2.1-2sarge1.diff.gz
Size/MD5 checksum: 3546 3365f545bd49464f4e58bacc503f8b28
http://security.debian.org/pool/updates/main/f/flexbackup/flexbackup_1.2.1.orig.tar.gz
Size/MD5 checksum: 80158 4955c89dbee354248f354a9bf0a480dd
Architecture independent components:
http://security.debian.org/pool/updates/main/f/flexbackup/flexbackup_1.2.1-2sarge1_all.deb
Size/MD5 checksum: 75836 240f8792a65a0d80b8ef85d4343a4827
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 <pkg>' and http://packages.debian.org/<pkg>
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