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CVE-2017-17969

7.8 · HIGH

Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potenti…

Published Jan 30, 2018CWE-787EPSS 4.94%

Overview

CVE-2017-17969 is a high-severity vulnerability. It was published on January 30, 2018 and has a CVSS 3.0 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.0 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

Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.

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

Refwww.securitytracker.com/id/1040831Ref0patch.blogspot.si/2018/02/two-interesting-micropatches-for-7-zip.htmlGitHubgithub.com/p7zip-project/p7zip/issues/7Reflandave.io/2018/01/7-zip-multiple-memory-corruptions-via-rar-and-zip/Reflists.debian.org/debian-lts-announce/2018/02/msg00003.htmlRefusn.ubuntu.com/3913-1/Refwww.debian.org/security/2018/dsa-4104Refwww.securitytracker.com/id/1040831Ref0patch.blogspot.si/2018/02/two-interesting-micropatches-for-7-zip.htmlReflandave.io/2018/01/7-zip-multiple-memory-corruptions-via-rar-and-zip/

How CyberStrike helps

Frequently asked questions

What is CVE-2017-17969?

CVE-2017-17969 is a high-severity vulnerability. It was published on January 30, 2018 and has a CVSS 3.0 base score of 7.8 (HIGH).

How severe is CVE-2017-17969?

This vulnerability has a CVSS 3.0 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-2017-17969?

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-2017-17969?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-17969 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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