Debian Security Advisory
DSA-070-1 netkit-telnet -- remote exploit
- Date Reported:
- 10 Aug 2001
- Affected Packages:
- netkit-telnet
- Vulnerable:
- Yes
- Security database references:
- In the Bugtraq database (at SecurityFocus): BugTraq ID 3064.
In Mitre's CVE dictionary: CVE-2001-0554. - More information:
-
The netkit-telnet daemon contained in the
telnetdpackage version 0.16-4potato1, which is shipped with the "stable" (2.2, potato) distribution of Debian GNU/Linux, is vulnerable to an exploitable overflow in its output handling.The original bug was found by <scut@nb.in-berlin.de>, and announced to bugtraq on Jul 18 2001. At that time, netkit-telnet versions after 0.14 were not believed to be vulnerable.
On Aug 10 2001, zen-parse posted an advisory based on the same problem, for all netkit-telnet versions below 0.17.
More details can be found on http://online.securityfocus.com/archive/1/203000. As Debian uses the `telnetd' user to run
in.telnetd, this is not a remote root compromise on Debian systems; however, the user `telnetd' can be compromised.We strongly advise you update your
telnetdpackage to the versions listed below. - Fixed in:
-
Debian GNU/Linux 2.2 (potato)
- Source:
- http://security.debian.org/dists/stable/updates/main/source/netkit-telnet_0.16-4potato.2.diff.gz
- http://security.debian.org/dists/stable/updates/main/source/netkit-telnet_0.16.orig.tar.gz
- http://security.debian.org/dists/stable/updates/main/source/netkit-telnet_0.16-4potato.2.dsc
- http://security.debian.org/dists/stable/updates/main/source/netkit-telnet_0.16.orig.tar.gz
- Alpha:
- http://security.debian.org/dists/stable/updates/main/binary-alpha/telnet_0.16-4potato.2_alpha.deb
- http://security.debian.org/dists/stable/updates/main/binary-alpha/telnetd_0.16-4potato.2_alpha.deb
- http://security.debian.org/dists/stable/updates/main/binary-alpha/telnetd_0.16-4potato.2_alpha.deb
- ARM:
- http://security.debian.org/dists/stable/updates/main/binary-arm/telnet_0.16-4potato.2_arm.deb
- http://security.debian.org/dists/stable/updates/main/binary-arm/telnetd_0.16-4potato.2_arm.deb
- http://security.debian.org/dists/stable/updates/main/binary-arm/telnetd_0.16-4potato.2_arm.deb
- Intel IA-32:
- http://security.debian.org/dists/stable/updates/main/binary-i386/telnet_0.16-4potato.2_i386.deb
- http://security.debian.org/dists/stable/updates/main/binary-i386/telnetd_0.16-4potato.2_i386.deb
- http://security.debian.org/dists/stable/updates/main/binary-i386/telnetd_0.16-4potato.2_i386.deb
- Motorola 680x0 architecture:
- http://security.debian.org/dists/stable/updates/main/binary-m68k/telnet_0.16-4potato.2_m68k.deb
- http://security.debian.org/dists/stable/updates/main/binary-m68k/telnetd_0.16-4potato.2_m68k.deb
- http://security.debian.org/dists/stable/updates/main/binary-m68k/telnetd_0.16-4potato.2_m68k.deb
- PowerPC:
- http://security.debian.org/dists/stable/updates/main/binary-powerpc/telnet_0.16-4potato.2_powerpc.deb
- http://security.debian.org/dists/stable/updates/main/binary-powerpc/telnetd_0.16-4potato.2_powerpc.deb
- http://security.debian.org/dists/stable/updates/main/binary-powerpc/telnetd_0.16-4potato.2_powerpc.deb
- Sun Sparc:
- http://security.debian.org/dists/stable/updates/main/binary-sparc/telnet_0.16-4potato.2_sparc.deb
- http://security.debian.org/dists/stable/updates/main/binary-sparc/telnetd_0.16-4potato.2_sparc.deb
- http://security.debian.org/dists/stable/updates/main/binary-sparc/telnetd_0.16-4potato.2_sparc.deb
MD5 checksums of the listed files are available in the original advisory.