CVE-2017-13687
CRITICALCVSS 9.8/10EPSS 3.28%
Last modified
CVE-2017-13687 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The Cisco HDLC parser in tcpdump before 4.9.2 has a buffer over-read in print-chdlc.c:chdlc_print().. EPSS estimates a 3.28% chance of exploitation in the next 30 days.
Description
The Cisco HDLC parser in tcpdump before 4.9.2 has a buffer over-read in print-chdlc.c:chdlc_print().
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Tcpdump | Tcpdump | <= 4.9.1 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
References
- http://www.debian.org/security/2017/dsa-3971Third Party Advisory
- http://www.securitytracker.com/id/1039307Third Party Advisory, VDB Entry
- http://www.tcpdump.org/tcpdump-changes.txtVendor Advisory
- https://access.redhat.com/errata/RHEA-2018:0705Third Party Advisory
- https://github.com/the-tcpdump-group/tcpdump/commit/866c60236c41cea1e1654c8a071897292f64be49Issue Tracking, Third Party Advisory
- https://github.com/the-tcpdump-group/tcpdump/commit/a1eefe986065846b6c69dbc09afd9fa1a02c4a3dIssue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201709-23Third Party Advisory
- https://support.apple.com/HT208221Third Party Advisory
- http://www.debian.org/security/2017/dsa-3971Third Party Advisory
- http://www.securitytracker.com/id/1039307Third Party Advisory, VDB Entry
- http://www.tcpdump.org/tcpdump-changes.txtVendor Advisory
- https://access.redhat.com/errata/RHEA-2018:0705Third Party Advisory
- https://github.com/the-tcpdump-group/tcpdump/commit/866c60236c41cea1e1654c8a071897292f64be49Issue Tracking, Third Party Advisory
- https://github.com/the-tcpdump-group/tcpdump/commit/a1eefe986065846b6c69dbc09afd9fa1a02c4a3dIssue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201709-23Third Party Advisory
- https://support.apple.com/HT208221Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-13687?
The Cisco HDLC parser in tcpdump before 4.9.2 has a buffer over-read in print-chdlc.c:chdlc_print().
How severe is CVE-2017-13687?
CVE-2017-13687 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.28% probability of exploitation in the next 30 days.
How do I fix CVE-2017-13687?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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Are you affected by CVE-2017-13687?
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