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Vulnerability record · CVE-2014-3493 · published 23 June 2014

CVE-2014-3493: Samba memory buffer overflow vulnerability

Samba · Samba

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.

2.7 CVSS 2.0 Low EPSS 7.3% · top 5.9% CWE-119 · Memory buffer overflow
2.7CVSS 2.0 base score
7.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
46References
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2014-3493), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.