unixODBC: Buffer overflow in unicode_to_ansi_copy() can lead to crash or other unspecified impact
Published Feb 22, 2018
9.8
CRITICALCVSS 3.0
EPSS 2.54%
Description
In unixODBC before 2.3.5, there is a buffer overflow in the unicode_to_ansi_copy() function in DriverManager/__info.c.
Affected products
No data.
No data.
Red Hat Enterprise Linux 7
unixODBC-0:2.3.1-14.el7
Fixed · RHSA-2019:2336
Red Hat Enterprise Linux 7.6 Extended Update Support
unixODBC-0:2.3.1-14.el7_6
Fixed · RHSA-2020:4999
Red Hat Enterprise Linux 5
unixODBC
Will not fix
Red Hat Enterprise Linux 5
unixODBC64
Will not fix
Red Hat Enterprise Linux 6
unixODBC
Will not fix
Red Hat Enterprise Linux 8
unixODBC
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | unixODBC-0:2.3.1-14.el7 | Fixed | RHSA-2019:2336 |
| Red Hat Enterprise Linux 7.6 Extended Update Support | unixODBC-0:2.3.1-14.el7_6 | Fixed | RHSA-2020:4999 |
| Red Hat Enterprise Linux 5 | unixODBC | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | unixODBC64 | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | unixODBC | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | unixODBC | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
AV:N/AC:L/Au:N/C:P/I:P/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 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.54% (0.02545) | 84.44th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.68% (0.02676) | 83.79th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.32% (0.00315) | 70.61th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.32% (0.00315) | 69.52th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.32% (0.00315) | 65.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.83% (0.00833) | 24.58th | v1 |
| Jan 6, 2022 | 0.83% (0.00833) | 23.96th | v1 |
| Sep 1, 2021 | 0.83% (0.00833) | 57.50th | v1 |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (7)
- http://www.unixodbc.org/unixODBC-2.3.5.tar.gz x_refsource_MISCProduct
- https://access.redhat.com/errata/RHSA-2019:2336 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-7409 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1548305 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2018-7409
- https://sourceforge.net/projects/unixodbc/files/unixODBC/2.3.5/ChangeLog/download x_refsource_MISCRelease Notes
- https://www.cve.org/CVERecord?id=CVE-2018-7409
| Link | Providers | Tags |
|---|---|---|
| http://www.unixodbc.org/unixODBC-2.3.5.tar.gz | x_refsource_MISCProduct | |
| https://access.redhat.com/errata/RHSA-2019:2336 | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2018-7409 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1548305 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-7409 | ||
| https://sourceforge.net/projects/unixodbc/files/unixODBC/2.3.5/ChangeLog/download | x_refsource_MISCRelease Notes | |
| https://www.cve.org/CVERecord?id=CVE-2018-7409 |
Change history (0)
No recorded changes yet.