Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2017-17807

3.3 · LOW

The KEYS subsystem in the Linux kernel before 4.14.6 omitted an access-control check when adding a key to the current task's "default request-key keyring" via the request_key() system call, allowin…

Published Dec 20, 2017CWE-862EPSS 0.44%

Overview

CVE-2017-17807 is a low-severity vulnerability. It was published on December 20, 2017 and has a CVSS 3.0 base score of 3.3 (LOW).

This vulnerability has a CVSS 3.0 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

The KEYS subsystem in the Linux kernel before 4.14.6 omitted an access-control check when adding a key to the current task's "default request-key keyring" via the request_key() system call, allowing a local user to use a sequence of crafted system calls to add keys to a keyring with only Search permission (not Write permission) to that keyring, related to construct_get_dest_keyring() in security/keys/request_key.c.

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=4dca6ea1d9432052afb06baf2e3ae78188a4410bRefwww.securityfocus.com/bid/102301GitHubgithub.com/torvalds/linux/commit/4dca6ea1d9432052afb06baf2e3ae78188a4410bReflists.debian.org/debian-lts-announce/2018/01/msg00004.htmlRefusn.ubuntu.com/3617-1/Refusn.ubuntu.com/3617-2/Refusn.ubuntu.com/3617-3/Refusn.ubuntu.com/3619-1/Refusn.ubuntu.com/3619-2/Refusn.ubuntu.com/3620-1/

How CyberStrike helps

Frequently asked questions

What is CVE-2017-17807?

CVE-2017-17807 is a low-severity vulnerability. It was published on December 20, 2017 and has a CVSS 3.0 base score of 3.3 (LOW).

How severe is CVE-2017-17807?

This vulnerability has a CVSS 3.0 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-17807?

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-2017-17807?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-17807 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.

Related LOW CVEs from 2017

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999