CVE-2013-4256

Name: CVE-2013-4256
Creator: NVD / NIST
Published: 2013-10-09T14:54:25.78+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.70%

Last modified Jun 16, 2026

CVE-2013-4256 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.70%

48.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	12.10
Canonical	Ubuntu Linux	13.04
Radscan	Network Audio System	1.9.3

References

Timeline

Published: Oct 9, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-4256?

How severe is CVE-2013-4256?

Severity scoring for CVE-2013-4256 is pending analysis. The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.

How do I fix CVE-2013-4256?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-4256?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST