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CVE-2017-5577

5.5 · MEDIUM

The vc4_get_bcl function in drivers/gpu/drm/vc4/vc4_gem.c in the VideoCore DRM driver in the Linux kernel before 4.9.7 does not set an errno value upon certain overflow detections, which allows loc…

Published Feb 6, 2017CWE-388EPSS 0.43%

Overview

CVE-2017-5577 is a medium-severity vulnerability. It was published on February 6, 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 vc4_get_bcl function in drivers/gpu/drm/vc4/vc4_gem.c in the VideoCore DRM driver in the Linux kernel before 4.9.7 does not set an errno value upon certain overflow detections, which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) via inconsistent size values in a VC4_SUBMIT_CL ioctl call.

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=6b8ac63847bc2f958dd93c09edc941a0118992d9Refwww.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.7Refwww.openwall.com/lists/oss-security/2017/01/21/7Refwww.securityfocus.com/bid/95765Refbugzilla.redhat.com/show_bug.cgi?id=1416437GitHubgithub.com/torvalds/linux/commit/6b8ac63847bc2f958dd93c09edc941a0118992d9Reflkml.org/lkml/2017/1/17/759Refgit.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6b8ac63847bc2f958dd93c09edc941a0118992d9Refwww.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.7Refwww.openwall.com/lists/oss-security/2017/01/21/7

How CyberStrike helps

Frequently asked questions

What is CVE-2017-5577?

CVE-2017-5577 is a medium-severity vulnerability. It was published on February 6, 2017 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

How severe is CVE-2017-5577?

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-2017-5577?

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-2017-5577?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-5577 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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