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CVE-2015-7312

4.4 · MEDIUM

Multiple race conditions in the Advanced Union Filesystem (aufs) aufs3-mmap.patch and aufs4-mmap.patch patches for the Linux kernel 3.x and 4.x allow local users to cause a denial of service (use-a…

Published Nov 16, 2015linuxCWE-362EPSS 0.39%

Overview

CVE-2015-7312 is a medium-severity vulnerability affecting linux linux_kernel. It was published on November 16, 2015 and has a CVSS 2.0 base score of 4.4 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.4, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Multiple race conditions in the Advanced Union Filesystem (aufs) aufs3-mmap.patch and aufs4-mmap.patch patches for the Linux kernel 3.x and 4.x allow local users to cause a denial of service (use-after-free and BUG) or possibly gain privileges via a (1) madvise or (2) msync system call, related to mm/madvise.c and mm/msync.c.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected products

VendorProductVersionsStatus
linuxlinux_kernel3.0.0Affected

References

Refsourceforge.net/p/aufs/mailman/message/34449209/Refwww.debian.org/security/2015/dsa-3364Refwww.openwall.com/lists/oss-security/2015/09/22/10Refwww.ubuntu.com/usn/USN-2777-1Refsourceforge.net/p/aufs/mailman/message/34449209/Refwww.debian.org/security/2015/dsa-3364Refwww.openwall.com/lists/oss-security/2015/09/22/10Refwww.ubuntu.com/usn/USN-2777-1

How CyberStrike helps

Frequently asked questions

What is CVE-2015-7312?

CVE-2015-7312 is a medium-severity vulnerability affecting linux linux_kernel. It was published on November 16, 2015 and has a CVSS 2.0 base score of 4.4 (MEDIUM).

How severe is CVE-2015-7312?

This vulnerability has a CVSS 2.0 base score of 4.4, 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-2015-7312?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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-2015-7312?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-7312 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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