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Eldav Insecure Temporary File Creation Vulnerability
Secunia Advisory: SA9086
Release Date: 2003-06-20
Popularity: 6,548 views

Critical:
Less critical
Impact: Privilege escalation
Where: Local system
Solution Status: Vendor Patch

OS:Debian GNU/Linux 3.0
Debian GNU/Linux unstable alias sid

Software:Eldav 0.x

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CVE reference:CVE-2003-0438


Description:
Debian has reported a vulnerability in eldav, which can be exploited by malicious people to take certain actions on a system with escalated privileges.

The problem is that insecure permissions are set on temporary files in "/tmp". This can be exploited via symlink attacks to create or overwrite arbitrary files on a system with the privileges of the user running emacs and eldav.

Solution:
Update to version 0.7.2:
http://www.gohome.org/eldav/eldav-0.7.2.tar.gz


Updated packages:

-- Debian GNU/Linux 3.0 alias woody --

Source archives:

http://security.debian.org/pool/updat.../eldav/eldav_0.0.20020411-1woody1.dsc
Size/MD5 checksum: 592 9dd06517b53570a595d5c368924ceda1
http://security.debian.org/pool/updat...av/eldav_0.0.20020411-1woody1.diff.gz
Size/MD5 checksum: 3814 c4400b418452e1aea9a115a2af82e1aa
http://security.debian.org/pool/updat.../eldav/eldav_0.0.20020411.orig.tar.gz
Size/MD5 checksum: 12319 3b62e4b9b05eb1c8ef27e9f5d3b98db2

Architecture independent components:

http://security.debian.org/pool/updat...av/eldav_0.0.20020411-1woody1_all.deb
Size/MD5 checksum: 15546 5dc5beca6a1c57b5a4b32968ebc07da4


-- Debian GNU/Linux unstable alias sid --

Fixed in version 0.7.2-1.

Provided and/or discovered by:
Tatsuya Kinoshita

Original Advisory:
http://www.debian.org/security/2003/dsa-325


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