CVE-2019-5603

moderate-risk
Published 2019-07-26

In FreeBSD 12.0-STABLE before r350261, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r350263, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, system calls operating on file descriptors as part of mqueuefs did not properly release the reference allowing a malicious user to overflow the counter allowing access to files, directories, and sockets opened by processes owned by other users.

Do I need to act?

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0.15% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (20)

Affected Vendors

Freebsd

References (12)

Third Party Advisory http://packetstormsecurity.com/files/153752/FreeBSD-Security-Advisory-FreeBSD-SA...
Third Party Advisory http://packetstormsecurity.com/files/154172/FreeBSD-Security-Advisory-FreeBSD-SA...
Broken Link https://seclists.org/bugtraq/2019/Aug/35
Vendor Advisory https://security.FreeBSD.org/advisories/FreeBSD-SA-19:15.mqueuefs.asc
Third Party Advisory https://security.FreeBSD.org/advisories/FreeBSD-SA-19:24.mqueuefs.asc
Third Party Advisory https://security.netapp.com/advisory/ntap-20190814-0003/
Third Party Advisory http://packetstormsecurity.com/files/153752/FreeBSD-Security-Advisory-FreeBSD-SA...
Third Party Advisory http://packetstormsecurity.com/files/154172/FreeBSD-Security-Advisory-FreeBSD-SA...
Broken Link https://seclists.org/bugtraq/2019/Aug/35
Vendor Advisory https://security.FreeBSD.org/advisories/FreeBSD-SA-19:15.mqueuefs.asc
Third Party Advisory https://security.FreeBSD.org/advisories/FreeBSD-SA-19:24.mqueuefs.asc
Third Party Advisory https://security.netapp.com/advisory/ntap-20190814-0003/
45
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 1/34 · Minimal
Exposure 20/34 · Moderate