In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 on Ubuntu, the postinst maintainer script allows for group-crontab-to-root privilege escalation via symlink attacks against unsafe usage of the chown and chmod programs
Published Jun 9, 2017
6.7
MEDIUMCVSS 3.1
EPSS 0.55%
Description
In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 on Ubuntu, the postinst maintainer script allows for group-crontab-to-root privilege escalation via symlink attacks against unsafe usage of the chown and chmod programs.
Affected products
No data.
Configuration 1
- ≤ 3.0pl1-128.
Running on/with
- n/a
- n/a
Configuration 2
- 8.0
- 9.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:M/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 v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.55% (0.00551) | 44.04th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.55% (0.00551) | 44.93th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.06% (0.00062) | 27.18th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.06% (0.00062) | 26.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00062) | 24.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.25% (0.01247) | 30.57th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (5)
- http://bugs.debian.org/864466 x_refsource_MISCIssue TrackingThird Party AdvisoryVendor Advisory
- http://www.openwall.com/lists/oss-security/2017/06/08/3 x_refsource_MISCMailing ListThird Party Advisory
- http://www.securitytracker.com/id/1038651 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://lists.debian.org/debian-lts-announce/2019/03/msg00025.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00029.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://bugs.debian.org/864466 | x_refsource_MISCIssue TrackingThird Party AdvisoryVendor Advisory | |
| http://www.openwall.com/lists/oss-security/2017/06/08/3 | x_refsource_MISCMailing ListThird Party Advisory | |
| http://www.securitytracker.com/id/1038651 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://lists.debian.org/debian-lts-announce/2019/03/msg00025.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2021/10/msg00029.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory |
Change history (0)
No recorded changes yet.