shadow-utils: Buffer overflow via newusers tool
Published Aug 4, 2017
9.8
CRITICALCVSS 3.1
EPSS 2.66%
Description
In shadow before 4.5, the newusers tool could be made to manipulate internal data structures in ways unintended by the authors. Malformed input may lead to crashes (with a buffer overflow or other memory corruption) or other unspecified behaviors. This crosses a privilege boundary in, for example, certain web-hosting environments in which a Control Panel allows an unprivileged user account to create subaccounts.
Affected products
No data.
Configuration 1
- < 4.5
Configuration 2
- 9.0
No data.
Red Hat Enterprise Linux 5
shadow-utils
Not affected
Red Hat Enterprise Linux 6
shadow-utils
Not affected
Red Hat Enterprise Linux 7
shadow-utils
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | shadow-utils | Not affected | n/a |
| Red Hat Enterprise Linux 6 | shadow-utils | Not affected | n/a |
| Red Hat Enterprise Linux 7 | shadow-utils | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.66% (0.02659) | 85.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.66% (0.02659) | 83.67th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.54% (0.00540) | 77.52th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.54% (0.00540) | 76.59th | v3 (v2023.03.01) |
| May 8, 2023 | 0.54% (0.00540) | 73.88th | v3 (v2023.03.01) |
| Mar 24, 2023 | 0.64% (0.00637) | 75.93th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.90% (0.00902) | 80.27th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.08% (0.01083) | 28.73th | v1 |
| Jan 6, 2022 | 1.08% (0.01083) | 28.11th | v1 |
| Sep 1, 2021 | 1.08% (0.01083) | 65.10th | v1 |
| Apr 14, 2021 | 1.08% (0.01083) | 0.00th | v1 |
References (9)
- https://access.redhat.com/security/cve/CVE-2017-12424 Vendor Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=756630 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1266675 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1478359 Issue Tracking
- https://github.com/shadow-maint/shadow/commit/954e3d2e7113e9ac06632aee3c69b8d818cc8952 x_refsource_CONFIRMPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00020.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-12424
- https://security.gentoo.org/glsa/201710-16 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-12424
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2017-12424 | Vendor Advisory | |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=756630 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1266675 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1478359 | Issue Tracking | |
| https://github.com/shadow-maint/shadow/commit/954e3d2e7113e9ac06632aee3c69b8d818cc8952 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00020.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-12424 | ||
| https://security.gentoo.org/glsa/201710-16 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2017-12424 |
Change history (0)
No recorded changes yet.