MEDIUM
cups: Invalid usernames handled in scheduler/ipp.c:add_job() allow remote attackers to cause a denial of service
Published Mar 26, 2018
5.5
MEDIUMCVSS 3.0
EPSS 2.18%
Description
The add_job function in scheduler/ipp.c in CUPS before 2.2.6, when D-Bus support is enabled, can be crashed by remote attackers by sending print jobs with an invalid username, related to a D-Bus notification.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
cups
Not affected
Red Hat Enterprise Linux 6
cups
Not affected
Red Hat Enterprise Linux 7
cups
Affected
Red Hat Enterprise Linux 8
cups
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | cups | Not affected | n/a |
| Red Hat Enterprise Linux 6 | cups | Not affected | n/a |
| Red Hat Enterprise Linux 7 | cups | Affected | n/a |
| Red Hat Enterprise Linux 8 | cups | 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.
5.3 MEDIUM NVD
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
1 other source (Red Hat) ▾
5.5 MEDIUM Red Hat
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
3.5 LOW NVD
AV:N/AC:M/Au:S/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.18% 0.02178
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02178
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.18% (0.02178) | 81.68th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.25% (0.02255) | 80.60th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.14% (0.01137) | 76.44th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.51% (0.02511) | 75.60th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.14% (0.01137) | 76.91th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.59% (0.01593) | 87.87th | v3 (v2023.03.01) |
| Mar 5, 2024 | 1.59% (0.01593) | 87.01th | v3 (v2023.03.01) |
| Aug 17, 2023 | 1.13% (0.01128) | 82.84th | v3 (v2023.03.01) |
| Jul 8, 2023 | 1.12% (0.01119) | 82.63th | v3 (v2023.03.01) |
| Mar 20, 2023 | 0.75% (0.00746) | 78.04th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.64% (0.00641) | 76.01th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.23% (0.01232) | 67.28th | v2 (v2022.01.01) |
| Dec 23, 2022 | 1.23% (0.01232) | 66.86th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.23% (0.01232) | 64.85th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.23% (0.01232) | 41.02th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.31% (0.00310) | 2.76th | v1 |
| Jan 6, 2022 | 0.31% (0.00310) | 2.75th | v1 |
| Sep 1, 2021 | 0.31% (0.00310) | 5.84th | v1 |
| Apr 14, 2021 | 0.31% (0.00310) | 0.00th | v1 |
Weaknesses (1)
References (11)
- https://access.redhat.com/security/cve/CVE-2017-18248 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1561296 Issue Tracking
- https://github.com/apple/cups/commit/49fa4983f25b64ec29d548ffa3b9782426007df3 x_refsource_CONFIRMPatchThird Party Advisory
- https://github.com/apple/cups/issues/5143 x_refsource_CONFIRMExploitThird Party Advisory
- https://github.com/apple/cups/releases/tag/v2.2.6 x_refsource_CONFIRMThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/05/msg00018.html mailing-listx_refsource_MLIST
- https://lists.debian.org/debian-lts-announce/2018/07/msg00003.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2017-18248
- https://security.cucumberlinux.com/security/details.php?id=346 x_refsource_MISCExploitThird Party Advisory
- https://usn.ubuntu.com/3713-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2017-18248
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2017-18248 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1561296 | Issue Tracking | |
| https://github.com/apple/cups/commit/49fa4983f25b64ec29d548ffa3b9782426007df3 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://github.com/apple/cups/issues/5143 | x_refsource_CONFIRMExploitThird Party Advisory | |
| https://github.com/apple/cups/releases/tag/v2.2.6 | x_refsource_CONFIRMThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2018/05/msg00018.html | mailing-listx_refsource_MLIST | |
| https://lists.debian.org/debian-lts-announce/2018/07/msg00003.html | mailing-listx_refsource_MLIST | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-18248 | ||
| https://security.cucumberlinux.com/security/details.php?id=346 | x_refsource_MISCExploitThird Party Advisory | |
| https://usn.ubuntu.com/3713-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.cve.org/CVERecord?id=CVE-2017-18248 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Mar 26, 2018
Updated Aug 5, 2024
Reserved Mar 26, 2018
Link CVE-2017-18248
CISA Vulnrichment
Updated n/a