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.
CVE-2008-1552 is a security vulnerability that . Impacting 5 products from silc, from silc, from silc and 2 others, organizations running these solutions should prioritize assessment and patching.
Originally identified in 2008, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.
2008-03-31T17:44:00.000
2025-04-09T00:30:58.490
Deferred
CVSSv2: 6.8 (MEDIUM)
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | silc | silc_client | ≤ 1.1.3 | Yes |
| Application | silc | silc_server | ≤ 1.1.2 | Yes |
| Application | silc | silc_toolkit | ≤ 1.1.6 | Yes |
| Operating System | redhat | fedora | 7 | No |
| Operating System | redhat | fedora | 8 | No |
| Application | silc | silc | * | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For silc's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.