libSieve Error Message Buffer Overrun Vulnerability

BID:6300

Info

libSieve Error Message Buffer Overrun Vulnerability

Bugtraq ID: 6300
Class: Boundary Condition Error
CVE:
Remote: Yes
Local: No
Published: Dec 03 2002 12:00AM
Updated: Dec 03 2002 12:00AM
Credit: Discovery of this vulnerability is credited to Timo Sirainen <[email protected]>.
Vulnerable: Cyrusoft libSieve 2.1.2
+ Cmu Cyrus IMAP Server 2.1.10
Not Vulnerable:

Discussion

libSieve Error Message Buffer Overrun Vulnerability

A vulnerability has been discovered in the Sieve library. By generating excessive error messages in a program linked to the vulnerable library it is possible to overrun a buffer. Overwriting sensitive memory with attacker-supplied values may make it possible to execute arbitrary instructions with privileges of the vulnerable process.

Exploit / POC

libSieve Error Message Buffer Overrun Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

libSieve Error Message Buffer Overrun Vulnerability

Solution:
An unofficial patch has been made available by Timo Sirainen <[email protected]> and can be obtained from the referenced advisory.

Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

References

libSieve Error Message Buffer Overrun Vulnerability

References:

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