CRITICAL
tcpdump: Buffer over-read in print-rt6.c:rt6_print() in IPv6 routing header parser
Published Sep 14, 2017
9.8
CRITICALCVSS 3.0
EPSS 3.35%
Description
The IPv6 routing header parser in tcpdump before 4.9.2 has a buffer over-read in print-rt6.c:rt6_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.
No CVSS v3.1 score for this CVE.
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.
No CISA SSVC assessment for this CVE yet.
3.35% 0.03354
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03354
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 (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.35% (0.03354) | 88.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.35% (0.03354) | 87.09th | v5 (v2026.06.15) |
| Apr 4, 2025 | 1.12% (0.01117) | 76.33th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.12% (0.02119) | 82.59th | 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-2017-12986 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1490552 Issue Tracking
- https://github.com/the-tcpdump-group/tcpdump/commit/7ac73d6cd41e9d4ac0ca7e6830ca390e195bb21c x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-12986
- 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-2017-12986
| 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-2017-12986 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1490552 | Issue Tracking | |
| https://github.com/the-tcpdump-group/tcpdump/commit/7ac73d6cd41e9d4ac0ca7e6830ca390e195bb21c | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-12986 | ||
| 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-2017-12986 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 14, 2017
Updated Aug 5, 2024
Reserved Aug 21, 2017
Link CVE-2017-12986
CISA Vulnrichment
Updated n/a