HIGH
systemd: Null pointer dereference in dns_packet_is_reply_for function
Published May 24, 2017
7.5
HIGHCVSS 3.1
EPSS 15.30%
Description
systemd-resolved through 233 allows remote attackers to cause a denial of service (daemon crash) via a crafted DNS response with an empty question section.
Affected products
No data.
- ≤ 233
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
This issue did not affect the versions of systemd as shipped with Red Hat Enterprise Linux 7.
Metrics
No CVSS v4.0 score for this CVE.
7.5 HIGH NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
5.3 MEDIUM Red Hat
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
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.
15.30% 0.15301
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.15301
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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 15.30% (0.15301) | 96.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 15.42% (0.15422) | 96.36th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.18% (0.01175) | 76.77th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.33% (0.04330) | 81.17th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.71% (0.00706) | 80.59th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.71% (0.00706) | 79.74th | v3 (v2023.03.01) |
| May 8, 2023 | 0.71% (0.00706) | 77.46th | v3 (v2023.03.01) |
| Mar 9, 2023 | 0.63% (0.00630) | 75.77th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.66% (0.00665) | 76.54th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.62% (0.01623) | 33.90th | v1 |
| Jan 6, 2022 | 1.62% (0.01623) | 33.20th | v1 |
| Sep 1, 2021 | 1.62% (0.01623) | 73.32th | v1 |
| Apr 14, 2021 | 1.62% (0.01623) | 0.00th | v1 |
Weaknesses (1)
References (9)
- http://www.securityfocus.com/bid/98677 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-9217 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1455493 Issue Tracking
- https://github.com/systemd/systemd/commit/a924f43f30f9c4acaf70618dd2a055f8b0f166be x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/systemd/systemd/pull/5998 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://launchpad.net/bugs/1621396 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-9217
- https://security.netapp.com/advisory/ntap-20241213-0003/
- https://www.cve.org/CVERecord?id=CVE-2017-9217
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/98677 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2017-9217 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1455493 | Issue Tracking | |
| https://github.com/systemd/systemd/commit/a924f43f30f9c4acaf70618dd2a055f8b0f166be | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://github.com/systemd/systemd/pull/5998 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://launchpad.net/bugs/1621396 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-9217 | ||
| https://security.netapp.com/advisory/ntap-20241213-0003/ | ||
| https://www.cve.org/CVERecord?id=CVE-2017-9217 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 24, 2017
Updated Dec 13, 2024
Reserved May 24, 2017
Link CVE-2017-9217
CISA Vulnrichment
Updated n/a