Date: 07 March 2001
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AUSCERT External Security Bulletin Redistribution
ESB-2001.102 -- Debian Security Advisory DSA-032-1
proftpd running as root, /var symlink removal
7 March 2001
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AusCERT Security Bulletin Summary
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Product: proftpd
Vendor: Debian
Operating System: Debian Linux
Impact: Increased Privileges
Overwrite Arbitrary Files
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Debian Security Advisory DSA-032-1 security@debian.org
http://www.debian.org/security/ Wichert Akkerman
March 7, 2001
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Package: proftpd
Vulnerability: proftpd running as root, /var symlink removal
Debian-specific: yes
The following problems have been reported for the version of proftpd in
Debian 2.2 (potato):
1. There is a configuration error in the postinst script, when the user
enters 'yes', when asked if anonymous access should be enabled.
The postinst script wrongly leaves the 'run as uid/gid root' configuration
option in /etc/proftpd.conf, and adds a 'run as uid/gid nobody' option that
has no effect.
2. There is a bug that comes up when /var is a symlink, and proftpd is
restarted. When stopping proftpd, the /var symlink is removed; when it's
started again a file named /var is created.
The above problems have been corrected in proftpd-1.2.0pre10-2.0potato1.
We recommend you upgrade your proftpd package immediately.
wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
You may use an automated update by adding the resources from the
footer to the proper configuration.
Debian GNU/Linux 2.2 alias potato
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Potato was released for the alpha, arm, i386, m68k, powerpc and sparc
architectures.
Source archives:
http://security.debian.org/dists/stable/updates/main/source/proftpd_1.2.0pre10-2.0potato1.diff.gz
MD5 checksum: d75281d5332b005efd94ad0ff5ac3f63
http://security.debian.org/dists/stable/updates/main/source/proftpd_1.2.0pre10-2.0potato1.dsc
MD5 checksum: 8ff4de189c0b986ab4496ef7ae6467f4
http://security.debian.org/dists/stable/updates/main/source/proftpd_1.2.0pre10.orig.tar.gz
MD5 checksum: a1c25e59bb4281e2f83000796dc52388
Alpha architecture:
http://security.debian.org/dists/stable/updates/main/binary-alpha/proftpd_1.2.0pre10-2.0potato1_alpha.deb
MD5 checksum: 2e3d924a93692fc546f76fadf6e35cf7
ARM architecture:
http://security.debian.org/dists/stable/updates/main/binary-arm/proftpd_1.2.0pre10-2.0potato1_arm.deb
MD5 checksum: 2e2e9a921f45c6c73f0c0a1ba2c7fb13
Intel ia32 architecture:
http://security.debian.org/dists/stable/updates/main/binary-i386/proftpd_1.2.0pre10-2.0potato1_i386.deb
MD5 checksum: 9c0ff3c87e4802316081775fcf80c5d2
Motorola 680x0 architecture:
http://security.debian.org/dists/stable/updates/main/binary-m68k/proftpd_1.2.0pre10-2.0potato1_m68k.deb
MD5 checksum: 615709bf8777da7939217cf316c529b7
PowerPC architecture:
http://security.debian.org/dists/stable/updates/main/binary-powerpc/proftpd_1.2.0pre10-2.0potato1_powerpc.deb
MD5 checksum: 5a384113e857ba4a0b6bdcfce62ca880
Sun Sparc architecture:
http://security.debian.org/dists/stable/updates/main/binary-sparc/proftpd_1.2.0pre10-2.0potato1_sparc.deb
MD5 checksum: c99f335bca49f98867b1a9c473c97edc
These files will be moved into
ftp://ftp.debian.org/debian/dists/stable/*/binary-$arch/ soon.
For not yet released architectures please refer to the appropriate
directory ftp://ftp.debian.org/debian/dists/sid/binary-$arch/ .
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apt-get: deb http://security.debian.org/ stable/updates main
dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
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