CRITICAL
tcpdump: Buffer over-read in print-ip6.c:ip6_print() in IPv6 parser
Published Sep 14, 2017
9.8
CRITICALCVSS 3.1
EPSS 3.46%
Description
The IPv6 parser in tcpdump before 4.9.2 has a buffer over-read in print-ip6.c:ip6_print().
Affected products
No data.
No data.
Red Hat Enterprise Linux 7
tcpdump-14:4.9.2-3.el7
Fixed · RHEA-2018:0705
Red Hat Enterprise Linux 5
tcpdump
Will not fix
Red Hat Enterprise Linux 6
tcpdump
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | tcpdump-14:4.9.2-3.el7 | Fixed | RHEA-2018:0705 |
| Red Hat Enterprise Linux 5 | tcpdump | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | tcpdump | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
9.8 CRITICAL CISA ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
1 other source (Red Hat) ▾
6.5 MEDIUM Red Hat
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Dec 4, 2025 · SSVC 2.0.3
3.46% 0.03463
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03463
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 | 3.46% (0.03463) | 88.66th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.46% (0.03463) | 87.48th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.18% (0.01177) | 76.79th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.20% (0.07197) | 85.69th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.12% (0.02119) | 82.96th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.61% (0.00611) | 79.37th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.61% (0.00611) | 78.00th | v3 (v2023.03.01) |
| May 8, 2023 | 0.61% (0.00611) | 75.52th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.43% (0.00432) | 70.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.66% (0.01659) | 34.20th | v1 |
| Jan 6, 2022 | 1.66% (0.01659) | 33.50th | v1 |
| Sep 1, 2021 | 1.66% (0.01659) | 73.96th | v1 |
| Apr 14, 2021 | 1.66% (0.01659) | 0.00th | v1 |
Weaknesses (1)
References (11)
- http://www.debian.org/security/2017/dsa-3971 vendor-advisoryx_refsource_DEBIAN
- http://www.securitytracker.com/id/1039307 vdb-entryx_refsource_SECTRACK
- http://www.tcpdump.org/tcpdump-changes.txt x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/errata/RHEA-2018:0705 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2017-12985 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1490551 Issue Tracking
- https://github.com/the-tcpdump-group/tcpdump/commit/66df248b49095c261138b5a5e34d341a6bf9ac7f x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-12985
- https://security.gentoo.org/glsa/201709-23 vendor-advisoryx_refsource_GENTOO
- https://support.apple.com/HT208221 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2017-12985
| Link | Providers | Tags |
|---|---|---|
| http://www.debian.org/security/2017/dsa-3971 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1039307 | vdb-entryx_refsource_SECTRACK | |
| http://www.tcpdump.org/tcpdump-changes.txt | x_refsource_CONFIRMVendor Advisory | |
| https://access.redhat.com/errata/RHEA-2018:0705 | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2017-12985 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1490551 | Issue Tracking | |
| https://github.com/the-tcpdump-group/tcpdump/commit/66df248b49095c261138b5a5e34d341a6bf9ac7f | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-12985 | ||
| https://security.gentoo.org/glsa/201709-23 | vendor-advisoryx_refsource_GENTOO | |
| https://support.apple.com/HT208221 | x_refsource_CONFIRM | |
| https://www.cve.org/CVERecord?id=CVE-2017-12985 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 14, 2017
Updated Dec 4, 2025
Reserved Aug 21, 2017
Link CVE-2017-12985
CISA Vulnrichment
Updated Dec 4, 2025