Vulnerability Monitor

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CVE-2014-3493

The push_ascii function in smbd in Samba 3.6.x before 3.6.24, 4.0.x before 4.0.19, and 4.1.x before 4.1.9 allows remote authenticated users to cause a denial of service (memory corruption and daemon crash) via an attempt to read a Unicode pathname without specifying use of Unicode, leading to a character-set conversion failure that triggers an invalid pointer dereference.

Security Impact Summary

CVE-2014-3493 is a security vulnerability that . Impacting 1 product from samba organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2014, 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

2014-06-23T14:55:05.357

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 2.7 (LOW)

CVSSv2 Vector

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

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

Exploitability Score

5.1

Impact Score

2.9

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	samba	samba	3.6.0	Yes
Application	samba	samba	3.6.1	Yes
Application	samba	samba	3.6.2	Yes
Application	samba	samba	3.6.3	Yes
Application	samba	samba	3.6.4	Yes
Application	samba	samba	3.6.5	Yes
Application	samba	samba	3.6.6	Yes
Application	samba	samba	3.6.7	Yes
Application	samba	samba	3.6.8	Yes
Application	samba	samba	3.6.9	Yes
Application	samba	samba	3.6.10	Yes
Application	samba	samba	3.6.11	Yes
Application	samba	samba	3.6.12	Yes
Application	samba	samba	3.6.13	Yes
Application	samba	samba	3.6.14	Yes
Application	samba	samba	3.6.15	Yes
Application	samba	samba	3.6.16	Yes
Application	samba	samba	3.6.17	Yes
Application	samba	samba	3.6.18	Yes
Application	samba	samba	3.6.19	Yes
Application	samba	samba	3.6.20	Yes
Application	samba	samba	3.6.21	Yes
Application	samba	samba	3.6.22	Yes
Application	samba	samba	3.6.23	Yes
Application	samba	samba	4.1.0	Yes
Application	samba	samba	4.1.1	Yes
Application	samba	samba	4.1.2	Yes
Application	samba	samba	4.1.3	Yes
Application	samba	samba	4.1.4	Yes
Application	samba	samba	4.1.5	Yes
Application	samba	samba	4.1.6	Yes
Application	samba	samba	4.1.7	Yes
Application	samba	samba	4.1.8	Yes
Application	samba	samba	4.0.0	Yes
Application	samba	samba	4.0.1	Yes
Application	samba	samba	4.0.2	Yes
Application	samba	samba	4.0.3	Yes
Application	samba	samba	4.0.4	Yes
Application	samba	samba	4.0.5	Yes
Application	samba	samba	4.0.6	Yes
Application	samba	samba	4.0.7	Yes
Application	samba	samba	4.0.8	Yes
Application	samba	samba	4.0.9	Yes
Application	samba	samba	4.0.10	Yes
Application	samba	samba	4.0.11	Yes
Application	samba	samba	4.0.12	Yes
Application	samba	samba	4.0.13	Yes
Application	samba	samba	4.0.14	Yes
Application	samba	samba	4.0.15	Yes
Application	samba	samba	4.0.16	Yes
Application	samba	samba	4.0.17	Yes
Application	samba	samba	4.0.18	Yes

References

http://advisories.mageia.org/MGASA-2014-0279.html ([email protected])
http://linux.oracle.com/errata/ELSA-2014-0866.html ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136864.html ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134717.html ([email protected])
http://rhn.redhat.com/errata/RHSA-2014-0866.html ([email protected])
http://secunia.com/advisories/59378 ([email protected])
http://secunia.com/advisories/59407 ([email protected])
http://secunia.com/advisories/59433 ([email protected])
http://secunia.com/advisories/59579 ([email protected])
http://secunia.com/advisories/59834 ([email protected])
http://secunia.com/advisories/59848 ([email protected])
http://secunia.com/advisories/59919 ([email protected])
http://secunia.com/advisories/61218 ([email protected])
http://security.gentoo.org/glsa/glsa-201502-15.xml ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2014:136 ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2015:082 ([email protected])
http://www.samba.org/samba/security/CVE-2014-3493 Vendor Advisory ([email protected])
http://www.securityfocus.com/archive/1/532757/100/0/threaded ([email protected])
http://www.securityfocus.com/bid/68150 ([email protected])
http://www.securitytracker.com/id/1030455 ([email protected])
https://blogs.oracle.com/sunsecurity/entry/multiple_vulnerabilities_in_samba1 ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1108748 ([email protected])
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993 ([email protected])
http://advisories.mageia.org/MGASA-2014-0279.html (af854a3a-2127-422b-91ae-364da2661108)
http://linux.oracle.com/errata/ELSA-2014-0866.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136864.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134717.html (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2014-0866.html (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/59378 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/59407 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/59433 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/59579 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/59834 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/59848 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/59919 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/61218 (af854a3a-2127-422b-91ae-364da2661108)
http://security.gentoo.org/glsa/glsa-201502-15.xml (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2014:136 (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2015:082 (af854a3a-2127-422b-91ae-364da2661108)
http://www.samba.org/samba/security/CVE-2014-3493 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/532757/100/0/threaded (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/68150 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1030455 (af854a3a-2127-422b-91ae-364da2661108)
https://blogs.oracle.com/sunsecurity/entry/multiple_vulnerabilities_in_samba1 (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1108748 (af854a3a-2127-422b-91ae-364da2661108)
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993 (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 samba'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.