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CVE-2017-14991

5.5 · MEDIUM

The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel before 4.13.4 allows local users to obtain sensitive information from uninitialized kernel heap-memory locations via an SG_GET_REQUEST…

Published Oct 4, 2017CWE-200EPSS 0.41%

Overview

CVE-2017-14991 is a medium-severity vulnerability. It was published on October 4, 2017 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel before 4.13.4 allows local users to obtain sensitive information from uninitialized kernel heap-memory locations via an SG_GET_REQUEST_TABLE ioctl call for /dev/sg0.

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

Refgit.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e0097499839e0fe3af380410eababe5a47c4cf9Refwww.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.4Refwww.securityfocus.com/bid/101187GitHubgithub.com/torvalds/linux/commit/3e0097499839e0fe3af380410eababe5a47c4cf9Refusn.ubuntu.com/3754-1/Refgit.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e0097499839e0fe3af380410eababe5a47c4cf9Refwww.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.4Refwww.securityfocus.com/bid/101187GitHubgithub.com/torvalds/linux/commit/3e0097499839e0fe3af380410eababe5a47c4cf9Refusn.ubuntu.com/3754-1/

How CyberStrike helps

Frequently asked questions

What is CVE-2017-14991?

CVE-2017-14991 is a medium-severity vulnerability. It was published on October 4, 2017 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

How severe is CVE-2017-14991?

This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-14991?

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-2017-14991?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-14991 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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