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CVE-2019-12381

5.5 · MEDIUM

An issue was discovered in ip_ra_control in net/ipv4/ip_sockglue.c in the Linux kernel through 5.1.5.

Published May 28, 2019CWE-476EPSS 0.46%

Overview

CVE-2019-12381 is a medium-severity vulnerability. It was published on May 28, 2019 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

An issue was discovered in ip_ra_control in net/ipv4/ip_sockglue.c in the Linux kernel through 5.1.5. There is an unchecked kmalloc of new_ra, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). NOTE: this is disputed because new_ra is never used if it is NULL

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

Refwww.securityfocus.com/bid/108473Refbugzilla.redhat.com/show_bug.cgi?id=1715501Refgit.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=425aa0e1d01513437668fa3d4a971168bbaa8515Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KLGWJKLMTBBB53D5QLS4HOY2EH246WBE/Reflkml.org/lkml/2019/5/25/230Refwww.securityfocus.com/bid/108473Refbugzilla.redhat.com/show_bug.cgi?id=1715501Refgit.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=425aa0e1d01513437668fa3d4a971168bbaa8515Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI/

How CyberStrike helps

Frequently asked questions

What is CVE-2019-12381?

CVE-2019-12381 is a medium-severity vulnerability. It was published on May 28, 2019 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

How severe is CVE-2019-12381?

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-2019-12381?

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-2019-12381?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-12381 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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