CVE-2014-3493
Samba SMBd Denial of Service Memory Corruption Vulnerability
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.
INFO
Published Date :
June 23, 2014, 2:55 p.m.
Last Modified :
Feb. 13, 2023, 12:39 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
2.9
Exploitability Score :
5.1
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2014-3493.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2014-3493 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2014-3493 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 13, 2023
Action Type Old Value New Value Changed Description It was discovered that smbd, the Samba file server daemon, did not properly handle certain files that were stored on the disk and used a valid Unicode character in the file name. An attacker able to send an authenticated non-Unicode request that attempted to read such a file could cause smbd to crash. 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. Removed CVSS V2 Red Hat, Inc. (AV:A/AC:L/Au:S/C:N/I:N/A:P) Removed Reference https://access.redhat.com/errata/RHSA-2014:0866 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2014:0867 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2014:1009 [No Types Assigned] Removed Reference https://access.redhat.com/security/cve/CVE-2014-3493 [No Types Assigned] -
CVE Modified by [email protected]
Feb. 02, 2023
Action Type Old Value New Value Changed 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. It was discovered that smbd, the Samba file server daemon, did not properly handle certain files that were stored on the disk and used a valid Unicode character in the file name. An attacker able to send an authenticated non-Unicode request that attempted to read such a file could cause smbd to crash. Added CVSS V2 Red Hat, Inc. (AV:A/AC:L/Au:S/C:N/I:N/A:P) Added Reference https://access.redhat.com/errata/RHSA-2014:0866 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2014:0867 [No Types Assigned] Added Reference https://access.redhat.com/security/cve/CVE-2014-3493 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2014:1009 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 09, 2018
Action Type Old Value New Value Removed Reference http://www.securityfocus.com/archive/1/archive/1/532757/100/0/threaded [No Types Assigned] Added Reference http://www.securityfocus.com/archive/1/532757/100/0/threaded [No Types Assigned] -
CVE Modified by [email protected]
Jan. 07, 2017
Action Type Old Value New Value Added Reference https://blogs.oracle.com/sunsecurity/entry/multiple_vulnerabilities_in_samba1 [No Types Assigned] Added Reference http://www.securitytracker.com/id/1030455 [No Types Assigned] Added Reference http://www.securityfocus.com/bid/68150 [No Types Assigned] Added Reference http://secunia.com/advisories/61218 [No Types Assigned] Added Reference http://secunia.com/advisories/59433 [No Types Assigned] Added Reference http://secunia.com/advisories/59407 [No Types Assigned] Added Reference http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134717.html [No Types Assigned] Added Reference http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136864.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 23, 2016
Action Type Old Value New Value Removed Reference https://h20565.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993 -
CVE Modified by [email protected]
Aug. 20, 2016
Action Type Old Value New Value Added Reference https://h20565.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993 -
CVE Modified by [email protected]
Jun. 15, 2016
Action Type Old Value New Value Added Reference https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993 -
CVE Modified by [email protected]
Apr. 02, 2015
Action Type Old Value New Value Added Reference http://www.mandriva.com/security/advisories?name=MDVSA-2015:082 -
CVE Modified by [email protected]
Mar. 03, 2015
Action Type Old Value New Value Added Reference http://security.gentoo.org/glsa/glsa-201502-15.xml -
Initial Analysis by [email protected]
Jun. 24, 2014
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2014-3493 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2014-3493
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.79 }} 0.12%
score
0.90800
percentile