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CVE-2015-8872

6.2 · MEDIUM

The set_fat function in fat.c in dosfstools before 4.0 might allow attackers to corrupt a FAT12 filesystem or cause a denial of service (invalid memory read and crash) by writing an odd number of c…

Published Jun 3, 2016CWE-189EPSS 0.42%

Overview

CVE-2015-8872 is a medium-severity vulnerability. It was published on June 3, 2016 and has a CVSS 3.0 base score of 6.2 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.2, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The set_fat function in fat.c in dosfstools before 4.0 might allow attackers to corrupt a FAT12 filesystem or cause a denial of service (invalid memory read and crash) by writing an odd number of clusters to the third to last entry on a FAT12 filesystem, which triggers an "off-by-two error."

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

Reflists.opensuse.org/opensuse-updates/2016-06/msg00001.htmlReflists.opensuse.org/opensuse-updates/2016-09/msg00014.htmlRefwww.securityfocus.com/bid/90311Refwww.ubuntu.com/usn/USN-2986-1Refblog.fuzzing-project.org/44-dosfstools-fsck.vfat-Several-invalid-memory-accesses.htmlGitHubgithub.com/dosfstools/dosfstools/commit/07908124838afcc99c577d1d3e84cef2dbd39cb7GitHubgithub.com/dosfstools/dosfstools/issues/12GitHubgithub.com/dosfstools/dosfstools/releases/tag/v4.0Reflists.debian.org/debian-lts-announce/2020/05/msg00028.htmlReflists.opensuse.org/opensuse-updates/2016-06/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2015-8872?

CVE-2015-8872 is a medium-severity vulnerability. It was published on June 3, 2016 and has a CVSS 3.0 base score of 6.2 (MEDIUM).

How severe is CVE-2015-8872?

This vulnerability has a CVSS 3.0 base score of 6.2, rated MEDIUM. 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-2015-8872?

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-2015-8872?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-8872 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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