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PatchSiren cyber security CVE debrief

CVE-2017-6302 Debian CVE debrief

CVE-2017-6302 is an integer overflow in ytnef before 1.9.1. NVD rates the issue 7.8 HIGH with a local, low-privilege attack profile and high potential impact to confidentiality, integrity, and availability. The record ties the problem to a patch described as "5 of 9. Integer Overflow" and lists ytnef plus Debian 8.0/9.0 CPEs among the affected entries.

Vendor
Debian
Product
Unknown
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2017-02-24
Original CVE updated
2026-05-13
Advisory published
2017-02-24
Advisory updated
2026-05-13

Who should care

Administrators, package maintainers, and users running ytnef—especially on Debian 8.0 or 9.0 systems listed in NVD—should prioritize this update.

Technical summary

NVD classifies the weakness as CWE-190 (integer overflow). The CVSS v3.0 vector is AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, indicating a local attacker with low privileges could potentially trigger high-impact effects. The vulnerable upstream range is ytnef up to 1.9, with the description stating the issue is fixed in 1.9.1 and later.

Defensive priority

High. Although the attack requires local access and low privileges, NVD rates the possible impact as high across confidentiality, integrity, and availability, so affected systems should be patched promptly.

Recommended defensive actions

  • Upgrade ytnef to 1.9.1 or later, or install the vendor package update that includes the upstream fix.
  • Check whether Debian 8.0 or 9.0 hosts in your environment install ytnef and prioritize those systems for remediation.
  • Inventory any packages or workflows that depend on ytnef and verify they are no longer using vulnerable builds.
  • Use the referenced vendor and advisory notices to confirm the fixed package status before closing the ticket.

Evidence notes

All core claims are drawn from the supplied CVE and NVD records. The issue is described as an integer overflow in ytnef before 1.9.1; NVD assigns CWE-190 and CVSS 7.8 HIGH; and the affected CPEs include ytnef up to 1.9 plus Debian Linux 8.0 and 9.0. The record also references Debian DSA-3846, an Openwall patch thread, a GitHub pull request, and an X41 advisory as supporting sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2017-6302 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2017-6302

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2017-6302 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2017-6302

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.