SILC Client and Server Key Negotiation Protocol Remote Buffer Overflow Vulnerability

BID:28373

Info

SILC Client and Server Key Negotiation Protocol Remote Buffer Overflow Vulnerability

Bugtraq ID: 28373
Class: Boundary Condition Error
CVE: CVE-2008-1552
Remote: Yes
Local: No
Published: Mar 25 2008 12:00AM
Updated: Apr 13 2015 09:32PM
Credit: Los Plomeros vs. Blue Demon, Ariel Waissbein, Pedro Varangot, Marti Mizrahi, Oren Isacson, Carlos Garcia and Ivan Arce
Vulnerable: SILC Server 1.1.1
SILC Server 1.0.2
SILC Client 1.1.3
SILC Client 1.1.2
SILC Client 1.1.1
S.u.S.E. openSUSE 10.3
Redhat Fedora 7
Mandriva Linux Mandrake 2008.0 x86_64
Mandriva Linux Mandrake 2008.0
Gentoo Linux
Not Vulnerable: SILC Server 1.1.2
SILC Client 1.1.4

Discussion

SILC Client and Server Key Negotiation Protocol Remote Buffer Overflow Vulnerability

SILC Client and Server are prone to a buffer-overflow vulnerability because they fail to perform adequate boundary checks on user-supplied input.

Successfully exploiting this issue may allow remote attackers to execute arbitrary code in the context of the application. Failed exploit attempts will cause denial-of-service conditions.

This issue affects versions prior to SILC Client 1.1.4 and SILC Server 1.1.2.

Exploit / POC

SILC Client and Server Key Negotiation Protocol Remote Buffer Overflow Vulnerability

Currently we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Solution / Fix

SILC Client and Server Key Negotiation Protocol Remote Buffer Overflow Vulnerability

Solution:
Vendor fixes are available. Please see the references for more information.


SILC Server 1.0.2

SILC Server 1.1.1

SILC Client 1.1.1

SILC Client 1.1.2

SILC Client 1.1.3

References

SILC Client and Server Key Negotiation Protocol Remote Buffer Overflow Vulnerability

References:

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