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      Last Modified:  03/31/2008

Quick Info

CVE Dictionary Entry:
CVE-2008-1552
Original release date:
03/31/2008
Last revised:
08/07/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
6.8 MEDIUM
Vector:
(AV:N/AC:M/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore:
6.4
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector:
Network exploitable - Victim must voluntarily interact with attack mechanism
Access Complexity:
Medium
Authentication:
Not required to exploit
Impact Type:
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 Type Source Name
http://lists.opensuse.org/opensuse-security-announce/2008-04/msg00005.html External Source SUSE SUSE-SR:2008:008
http://security.gentoo.org/glsa/glsa-200804-27.xml External Source GENTOO GLSA-200804-27
http://securityreason.com/securityalert/3795 External Source SREASON 3795
http://silcnet.org/general/news/?item=client_20080320_1 Patch External Source CONFIRM http://silcnet.org/general/news/?item=client_20080320_1
http://silcnet.org/general/news/?item=server_20080320_1 Patch External Source CONFIRM http://silcnet.org/general/news/?item=server_20080320_1
http://silcnet.org/general/news/?item=toolkit_20080320_1 Patch External Source CONFIRM http://silcnet.org/general/news/?item=toolkit_20080320_1
http://www.coresecurity.com/?action=item&id=2206 External Source MISC http://www.coresecurity.com/?action=item&id=2206
http://www.mandriva.com/security/advisories?name=MDVSA-2008:158 External Source MANDRIVA MDVSA-2008:158
http://www.securityfocus.com/archive/1/archive/1/490069/100/0/threaded External Source BUGTRAQ 20080325 CORE-2007-1212: SILC pkcs_decode buffer overflow
http://www.securityfocus.com/bid/28373 Patch External Source BID 28373
http://www.securitytracker.com/id?1019690 External Source SECTRACK 1019690
http://www.vupen.com/english/advisories/2008/0974/references External Source VUPEN ADV-2008-0974
https://exchange.xforce.ibmcloud.com/vulnerabilities/41474 External Source XF silc-silcpkcs1decode-bo(41474)
https://www.redhat.com/archives/fedora-package-announce/2008-March/msg00513.html External Source FEDORA FEDORA-2008-2616
https://www.redhat.com/archives/fedora-package-announce/2008-March/msg00538.html External Source FEDORA FEDORA-2008-2641

Technical Details

Vulnerability Type (View All)

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