National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2008-1552 Detail

Description

The silc_pkcs1_decode function in the silccrypt library (silcpkcs1.c) in Secure Internet Live Conferencing (SILC) Toolkit before 1.1.7, SILC Client before 1.1.4, and SILC Server before 1.1.2 allows remote attackers to execute arbitrary code via a crafted PKCS#1 message, which triggers an integer underflow, signedness error, and a buffer overflow. NOTE: the researcher describes this as an integer overflow, but CVE uses the "underflow" term in cases of wraparound from unsigned subtraction.

Source:  MITRE
Description Last Modified:  03/31/2008

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (04/23/2008)

Red Hat does not consider this issue to be a security flaw as SILC is not used in a vulnerable manner in Red Hat Enterprise Linux 4 and 5. More information can be found here: https://bugzilla.redhat.com/show_bug.cgi?id=440049

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2008-04/msg00005.html
http://security.gentoo.org/glsa/glsa-200804-27.xml
http://securityreason.com/securityalert/3795
http://silcnet.org/general/news/?item=client_20080320_1 Patch
http://silcnet.org/general/news/?item=server_20080320_1 Patch
http://silcnet.org/general/news/?item=toolkit_20080320_1 Patch
http://www.coresecurity.com/?action=item&id=2206
http://www.mandriva.com/security/advisories?name=MDVSA-2008:158
http://www.securityfocus.com/archive/1/490069/100/0/threaded
http://www.securityfocus.com/bid/28373 Patch
http://www.securitytracker.com/id?1019690
http://www.vupen.com/english/advisories/2008/0974/references
https://exchange.xforce.ibmcloud.com/vulnerabilities/41474
https://www.redhat.com/archives/fedora-package-announce/2008-March/msg00513.html
https://www.redhat.com/archives/fedora-package-announce/2008-March/msg00538.html

Technical Details

Vulnerability Type (View All)

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2008-1552
NVD Published Date:
03/31/2008
NVD Last Modified:
10/11/2018