mgetty: command injection in faxrunq
Published Sep 13, 2018
7.8
HIGHCVSS 3.0
EPSS 1.32%
Description
An issue was discovered in mgetty before 1.2.1. In fax/faxq-helper.c, the function do_activate() does not properly sanitize shell metacharacters to prevent command injection. It is possible to use the ||, &&, or > characters within a file created by the "faxq-helper activate <jobid>" command.
Affected products
No data.
Configuration 1
- < 1.2.1
Configuration 2
- 8.0
- 9.0
No data.
Red Hat Enterprise Linux 5
mgetty
Will not fix
Red Hat Enterprise Linux 6
mgetty
Will not fix
Red Hat Enterprise Linux 7
mgetty
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | mgetty | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | mgetty | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | mgetty | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat mitigation
Allow only trusted users to run the faxq-helper binary, by correctly setting the /etc/mgetty+sendfax/fax.allow configuration file.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
AV:L/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 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 | 1.32% (0.01323) | 69.86th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.32% (0.01323) | 69.63th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.10% (0.00095) | 40.56th | v3 (v2023.03.01) |
| Sep 7, 2023 | 0.10% (0.00095) | 39.42th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00080) | 32.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.01% (0.01011) | 38.12th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.01% (0.01011) | 17.94th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.83% (0.00833) | 24.58th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (7)
- https://access.redhat.com/security/cve/CVE-2018-16741 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1628754 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2018/09/msg00012.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-16741
- https://www.cve.org/CVERecord?id=CVE-2018-16741
- https://www.debian.org/security/2018/dsa-4291 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.x41-dsec.de/lab/advisories/x41-2018-007-mgetty x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2018-16741 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1628754 | Issue Tracking | |
| https://lists.debian.org/debian-lts-announce/2018/09/msg00012.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-16741 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-16741 | ||
| https://www.debian.org/security/2018/dsa-4291 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://www.x41-dsec.de/lab/advisories/x41-2018-007-mgetty | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.