What’s Vulnerable › Vulnerabilities

CVE-2013-4256

• Severity: medium (CVSS 4.6 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2013-10-09 · updated 2026-06-16
• Weakness: CWE-119

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.

Affected products

• Canonical Ubuntu Linux: 12.04, 12.10, 13.04
• Radscan Network Audio System: 1.9.3

References

• http://radscan.com/pipermail/nas/2013-August/001270.html
• http://sourceforge.net/p/nas/code/288
• http://www.debian.org/security/2013/dsa-2771
• http://www.openwall.com/lists/oss-security/2013/08/16/2
• http://www.openwall.com/lists/oss-security/2013/08/19/3
• http://www.securityfocus.com/bid/61848
• http://www.ubuntu.com/usn/USN-1986-1
• http://radscan.com/pipermail/nas/2013-August/001270.html
• http://sourceforge.net/p/nas/code/288
• http://www.debian.org/security/2013/dsa-2771
• http://www.openwall.com/lists/oss-security/2013/08/16/2
• http://www.openwall.com/lists/oss-security/2013/08/19/3

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