Fetchmail POP3 Reply Signed Integer Index Vulnerability

BID:3164

Info

Fetchmail POP3 Reply Signed Integer Index Vulnerability

Bugtraq ID: 3164
Class: Input Validation Error
CVE: CVE-2001-1009
Remote: Yes
Local: No
Published: Aug 09 2001 12:00AM
Updated: Jul 11 2009 07:56AM
Credit: Discovered by Salvatore Sanfillipo antirez <[email protected]>.
Vulnerable: Eric Raymond Fetchmail 5.8.16
Eric Raymond Fetchmail 5.8.15
Eric Raymond Fetchmail 5.8.14
Eric Raymond Fetchmail 5.8.13
Eric Raymond Fetchmail 5.8.12
Eric Raymond Fetchmail 5.8.11
Eric Raymond Fetchmail 5.8.10
Eric Raymond Fetchmail 5.8.9
Eric Raymond Fetchmail 5.8.8
Eric Raymond Fetchmail 5.8.7
Eric Raymond Fetchmail 5.8.6
- Apple Mac OS X 10.1
Eric Raymond Fetchmail 5.8.5
Eric Raymond Fetchmail 5.8.4
Eric Raymond Fetchmail 5.8.3
Eric Raymond Fetchmail 5.8.2
Eric Raymond Fetchmail 5.8.1
Eric Raymond Fetchmail 5.8 .0
+ SuSE Linux 7.2
Eric Raymond Fetchmail 5.7.4
- Mandriva Linux Mandrake 8.0
Eric Raymond Fetchmail 5.7.3
Eric Raymond Fetchmail 5.7.2
Eric Raymond Fetchmail 5.7.1
- Debian Linux 2.3
Eric Raymond Fetchmail 5.7
Eric Raymond Fetchmail 5.6.8
Eric Raymond Fetchmail 5.6.7
Eric Raymond Fetchmail 5.6.6
Eric Raymond Fetchmail 5.6.5
+ SuSE Linux 7.1 x86
 + SuSE Linux 7.1 sparc
 + SuSE Linux 7.1 ppc
 + SuSE Linux 7.1 alpha
 + SuSE Linux 7.1
Eric Raymond Fetchmail 5.6.4
Eric Raymond Fetchmail 5.6.3
Eric Raymond Fetchmail 5.6.2
Eric Raymond Fetchmail 5.6.1
Eric Raymond Fetchmail 5.6
Eric Raymond Fetchmail 5.5.6
Eric Raymond Fetchmail 5.5.5
Eric Raymond Fetchmail 5.5.4
Eric Raymond Fetchmail 5.5.3
Eric Raymond Fetchmail 5.5.2
Eric Raymond Fetchmail 5.5.1
Eric Raymond Fetchmail 5.5
+ Cobalt Qube 3.0
- Immunix Immunix OS 7.0 beta
 - Immunix Immunix OS 7.0
Eric Raymond Fetchmail 5.4.5
Eric Raymond Fetchmail 5.4.4
Eric Raymond Fetchmail 5.4.3
Eric Raymond Fetchmail 5.4.2
Eric Raymond Fetchmail 5.4.1
Eric Raymond Fetchmail 5.4 .0
+ Caldera OpenLinux Server 3.1.1
+ Caldera OpenLinux Server 3.1
+ Caldera OpenLinux Workstation 3.1.1
+ Caldera OpenLinux Workstation 3.1
+ EnGarde Secure Linux 1.0.1
- Guardian Digital Engarde Secure Linux 1.0.1
Eric Raymond Fetchmail 5.3.8
Eric Raymond Fetchmail 5.3.7
Eric Raymond Fetchmail 5.3.6
Eric Raymond Fetchmail 5.3.5
Eric Raymond Fetchmail 5.3.4
Eric Raymond Fetchmail 5.3.3
+ Debian Linux 2.2 sparc
 + Debian Linux 2.2 powerpc
 + Debian Linux 2.2 IA-32
 + Debian Linux 2.2 arm
 + Debian Linux 2.2 alpha
 + Debian Linux 2.2 68k
 Eric Raymond Fetchmail 5.3.2
Eric Raymond Fetchmail 5.3.1
- Immunix Immunix OS 6.2
Eric Raymond Fetchmail 5.3
Eric Raymond Fetchmail 5.2
- SCO eDesktop 2.4
Eric Raymond Fetchmail 5.1
Eric Raymond Fetchmail 5.0
- Caldera OpenLinux 2.3
- SCO eServer 2.3
Not Vulnerable: Eric Raymond Fetchmail 5.8.17
+ Caldera OpenLinux Server 3.1.1
+ Caldera OpenLinux Server 3.1
+ Caldera OpenLinux Workstation 3.1.1
+ Caldera OpenLinux Workstation 3.1

Discussion

Fetchmail POP3 Reply Signed Integer Index Vulnerability

Fetchmail is a unix utility for downloading email from mail servers via POP3.

Fetchmail contains a vulnerability that may allow for remote attackers to gain access to client systems. The vulnerability has to do with the use of a remotely supplied signed integer value as the index to an array when writing data to memory.

It is be possible for attackers to overwrite critical variables in memory with arbitrary values if the target client's POP3 server can be impersonated. Successful exploitation can lead to the exectution of arbitrary code on the client host.

Solution / Fix

Fetchmail POP3 Reply Signed Integer Index Vulnerability

Solution:
A fixed version has been made available.

Various vendors have also released fixed packages:


Eric Raymond Fetchmail 5.3.8

Eric Raymond Fetchmail 5.4 .0

Eric Raymond Fetchmail 5.5.2

Eric Raymond Fetchmail 5.7.4

Eric Raymond Fetchmail 5.8 .0

Eric Raymond Fetchmail 5.8.1

Eric Raymond Fetchmail 5.8.10

Eric Raymond Fetchmail 5.8.11

Eric Raymond Fetchmail 5.8.12

Eric Raymond Fetchmail 5.8.13

Eric Raymond Fetchmail 5.8.14

Eric Raymond Fetchmail 5.8.15

Eric Raymond Fetchmail 5.8.16

Eric Raymond Fetchmail 5.8.2

Eric Raymond Fetchmail 5.8.3

Eric Raymond Fetchmail 5.8.4

Eric Raymond Fetchmail 5.8.5

Eric Raymond Fetchmail 5.8.6

Eric Raymond Fetchmail 5.8.7

Eric Raymond Fetchmail 5.8.8

Eric Raymond Fetchmail 5.8.9

References

Fetchmail POP3 Reply Signed Integer Index Vulnerability

References:

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