Vulnerability Monitor

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CVE-2013-4256

Multiple stack-based and heap-based buffer overflows in Network Audio System (NAS) 1.9.3 allow local users to cause a denial of service (crash) or possibly execute arbitrary code via the (1) display command argument to the ProcessCommandLine function in server/os/utils.c; (2) ResetHosts function in server/os/access.c; (3) open_unix_socket, (4) open_isc_local, (5) open_xsight_local, (6) open_att_local, or (7) open_att_svr4_local function in server/os/connection.c; the (8) AUDIOHOST environment variable to the CreateWellKnownSockets or (9) AmoebaTCPConnectorThread function in server/os/connection.c; or (10) unspecified vectors related to logging in the osLogMsg function in server/os/aulog.c.

Security Impact Summary

CVE-2013-4256 is a security vulnerability that . Impacting 2 products from canonical, from radscan organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2013, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2013-10-09T14:54:25.780

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.6 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

6.4

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	canonical	ubuntu_linux	12.04	Yes
Operating System	canonical	ubuntu_linux	12.10	Yes
Operating System	canonical	ubuntu_linux	13.04	Yes
Application	radscan	network_audio_system	1.9.3	Yes

References

http://radscan.com/pipermail/nas/2013-August/001270.html Exploit ([email protected])
http://sourceforge.net/p/nas/code/288 Exploit, Patch ([email protected])
http://www.debian.org/security/2013/dsa-2771 ([email protected])
http://www.openwall.com/lists/oss-security/2013/08/16/2 Patch ([email protected])
http://www.openwall.com/lists/oss-security/2013/08/19/3 Patch ([email protected])
http://www.securityfocus.com/bid/61848 ([email protected])
http://www.ubuntu.com/usn/USN-1986-1 Vendor Advisory ([email protected])
http://radscan.com/pipermail/nas/2013-August/001270.html Exploit (af854a3a-2127-422b-91ae-364da2661108)
http://sourceforge.net/p/nas/code/288 Exploit, Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2013/dsa-2771 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2013/08/16/2 Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2013/08/19/3 Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/61848 (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-1986-1 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

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 canonical'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.