systemd: fails to parse usernames that start with digits
Published Jul 7, 2017
9.8
CRITICALCVSS 3.1
EPSS 3.88%
Description
systemd v233 and earlier fails to safely parse usernames starting with a numeric digit (e.g. "0day"), running the service in question with root privileges rather than the user intended.
Affected products
No data.
- ≥ 229 · < 234
No data.
Red Hat Enterprise Linux 7
systemd
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | systemd | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
For more information on the impact of numeric usernames in Red Hat Enterprise Linux, please see https://access.redhat.com/solutions/3103631
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:H/UI:R/S:C/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:C/I:C/A:C
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 | 3.88% (0.03878) | 89.89th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.88% (0.03878) | 88.82th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.72% (0.00718) | 80.76th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.72% (0.00718) | 79.94th | v3 (v2023.03.01) |
| May 8, 2023 | 0.72% (0.00718) | 77.66th | v3 (v2023.03.01) |
| Apr 22, 2023 | 0.56% (0.00562) | 74.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.12% (0.01121) | 82.37th | 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 | 1.04% (0.01040) | 28.32th | v1 |
| Jan 6, 2022 | 1.04% (0.01040) | 27.69th | v1 |
| Sep 1, 2021 | 1.04% (0.01040) | 64.49th | v1 |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (8)
- http://www.openwall.com/lists/oss-security/2017/07/02/1 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/99507 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038839 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-1000082 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1468427 Issue Tracking
- https://github.com/systemd/systemd/issues/6237 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-1000082
- https://www.cve.org/CVERecord?id=CVE-2017-1000082
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2017/07/02/1 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| http://www.securityfocus.com/bid/99507 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1038839 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2017-1000082 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1468427 | Issue Tracking | |
| https://github.com/systemd/systemd/issues/6237 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-1000082 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-1000082 |
Change history (0)
No recorded changes yet.