samba: smbd unicode path names denial of service
Published Jun 23, 2014
2.7
LOWCVSS 2.0
EPSS 7.27%
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.
Affected products
No data.
Configuration 1
- 3.6.0
- 3.6.1
- 3.6.2
- 3.6.3
- 3.6.4
- 3.6.5
- 3.6.6
- 3.6.7
- 3.6.8
- 3.6.9
- 3.6.10
- 3.6.11
- 3.6.12
- 3.6.13
- 3.6.14
- 3.6.15
- 3.6.16
- 3.6.17
- 3.6.18
- 3.6.19
- 3.6.20
- 3.6.21
- 3.6.22
- 3.6.23
Configuration 2
Configuration 3
- 4.0.0
- 4.0.1
- 4.0.2
- 4.0.3
- 4.0.4
- 4.0.5
- 4.0.6
- 4.0.7
- 4.0.8
- 4.0.9
- 4.0.10
- 4.0.11
- 4.0.12
- 4.0.13
- 4.0.14
- 4.0.15
- 4.0.16
- 4.0.17
- 4.0.18
No data.
Red Hat Enterprise Linux 5
samba3x-0:3.6.6-0.140.el5_10
Fixed · RHSA-2014:0866
Red Hat Enterprise Linux 6
samba-0:3.6.9-169.el6_5
Fixed · RHSA-2014:0866
Red Hat Enterprise Linux 6
samba4-0:4.0.0-63.el6_5.rc4
Fixed · RHSA-2014:1009
Red Hat Enterprise Linux 7
samba-0:4.1.1-35.el7_0
Fixed · RHSA-2014:0867
Red Hat Enterprise Linux 5
samba
Not affected
Red Hat Storage 2
samba
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | samba3x-0:3.6.6-0.140.el5_10 | Fixed | RHSA-2014:0866 |
| Red Hat Enterprise Linux 6 | samba-0:3.6.9-169.el6_5 | Fixed | RHSA-2014:0866 |
| Red Hat Enterprise Linux 6 | samba4-0:4.0.0-63.el6_5.rc4 | Fixed | RHSA-2014:1009 |
| Red Hat Enterprise Linux 7 | samba-0:4.1.1-35.el7_0 | Fixed | RHSA-2014:0867 |
| Red Hat Enterprise Linux 5 | samba | Not affected | n/a |
| Red Hat Storage 2 | samba | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the versions of samba3x as shipped with Red Hat Enterprise Linux 5. This issue affects the versions of samba and samba4 as shipped with Red Hat Enterprise Linux 6. This issue affects the versions of samba as shipped with Red Hat Enterprise Linux 7. This issue did not affect the versions of samba as shipped with Red Hat Enterprise Linux 5.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:A/AC:L/Au:S/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 7.27% (0.07269) | 94.17th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.27% (0.07269) | 93.53th | v5 (v2026.06.15) |
| Oct 19, 2025 | 2.71% (0.02711) | 85.34th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.40% (0.01398) | 79.10th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.79% (0.02792) | 90.99th | v3 (v2023.03.01) |
| Feb 3, 2024 | 2.67% (0.02673) | 89.41th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.23% (0.02235) | 87.75th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.53% (0.02528) | 81.92th | v2 (v2022.01.01) |
| Feb 13, 2023 | 2.53% (0.02528) | 81.42th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.55% (0.01547) | 74.40th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.53% (0.02528) | 80.15th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.53% (0.02528) | 58.66th | v2 (v2022.01.01) |
References (26)
- http://advisories.mageia.org/MGASA-2014-0279.html x_refsource_CONFIRM
- http://linux.oracle.com/errata/ELSA-2014-0866.html x_refsource_CONFIRM
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136864.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134717.html vendor-advisoryx_refsource_FEDORA
- http://rhn.redhat.com/errata/RHSA-2014-0866.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/59378 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/59407 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/59433 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/59579 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/59834 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/59848 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/59919 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/61218 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-201502-15.xml vendor-advisoryx_refsource_GENTOO
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:136 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:082 vendor-advisoryx_refsource_MANDRIVA
- http://www.samba.org/samba/security/CVE-2014-3493 x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/archive/1/532757/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/68150 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1030455 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2014-3493 Vendor Advisory
- https://blogs.oracle.com/sunsecurity/entry/multiple_vulnerabilities_in_samba1 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1108748 x_refsource_CONFIRMIssue Tracking
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2014-3493
- https://www.cve.org/CVERecord?id=CVE-2014-3493
Change history (0)
No recorded changes yet.