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CVE-2017-16879

7.8 · HIGH

Stack-based buffer overflow in the _nc_write_entry function in tinfo/write_entry.c in ncurses 6.0 allows attackers to cause a denial of service (application crash) or possibly execute arbitrary cod…

Published Nov 22, 2017CWE-787EPSS 2.39%

Overview

CVE-2017-16879 is a high-severity vulnerability. It was published on November 22, 2017 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Stack-based buffer overflow in the _nc_write_entry function in tinfo/write_entry.c in ncurses 6.0 allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted terminfo file, as demonstrated by tic.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refinvisible-island.net/ncurses/NEWS.html#t20171125Refpacketstormsecurity.com/files/145045/GNU-ncurses-6.0-tic-Denial-Of-Service.htmlReflists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3EReflists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3ERefsecurity.gentoo.org/glsa/201804-13Reftools.cisco.com/security/center/viewAlert.x?alertId=57695Refinvisible-island.net/ncurses/NEWS.html#t20171125Refpacketstormsecurity.com/files/145045/GNU-ncurses-6.0-tic-Denial-Of-Service.htmlReflists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3EReflists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E

How CyberStrike helps

Frequently asked questions

What is CVE-2017-16879?

CVE-2017-16879 is a high-severity vulnerability. It was published on November 22, 2017 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2017-16879?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-16879?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-16879?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-16879 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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