CVE-2019-5603
First published: Fri Jul 26 2019(Updated: )
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.
Credit: secteam@freebsd.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FreeBSD Kernel | =11.0 | |
| FreeBSD Kernel | =11.2 | |
| FreeBSD Kernel | =11.2-p10 | |
| FreeBSD Kernel | =11.2-p11 | |
| FreeBSD Kernel | =11.2-p2 | |
| FreeBSD Kernel | =11.2-p3 | |
| FreeBSD Kernel | =11.2-p4 | |
| FreeBSD Kernel | =11.2-p5 | |
| FreeBSD Kernel | =11.2-p6 | |
| FreeBSD Kernel | =11.2-p7 | |
| FreeBSD Kernel | =11.2-p8 | |
| FreeBSD Kernel | =11.2-p9 | |
| FreeBSD Kernel | =11.2-rc3 | |
| FreeBSD Kernel | =11.3 | |
| FreeBSD Kernel | =12.0 | |
| FreeBSD Kernel | =12.0-p1 | |
| FreeBSD Kernel | =12.0-p2 | |
| FreeBSD Kernel | =12.0-p3 | |
| FreeBSD Kernel | =12.0-p4 | |
| FreeBSD Kernel | =12.0-p5 | |
| FreeBSD Kernel | =12.0-p6 | |
| FreeBSD Kernel | =12.0-p7 |
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Reference Links
- http://packetstormsecurity.com/files/153752/FreeBSD-Security-Advisory-FreeBSD-SA-19-15.mqueuefs.html
- http://packetstormsecurity.com/files/154172/FreeBSD-Security-Advisory-FreeBSD-SA-19-24.mqueuefs.html
- https://seclists.org/bugtraq/2019/Aug/35
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:15.mqueuefs.asc
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:24.mqueuefs.asc
- https://security.netapp.com/advisory/ntap-20190814-0003/
Frequently Asked Questions
What is the severity of CVE-2019-5603?
CVE-2019-5603 has been classified as a medium severity vulnerability.
How do I fix CVE-2019-5603?
To fix CVE-2019-5603, upgrade to the patched versions of FreeBSD namely 12.0-RELEASE-p8, 11.3-RELEASE-p1, or 11.2-RELEASE-p12.
What is the impact of CVE-2019-5603?
The impact of CVE-2019-5603 allows an unprivileged user to exploit the vulnerability via incorrect reference counting, potentially leading to a denial of service.
Which versions of FreeBSD are affected by CVE-2019-5603?
FreeBSD versions 11.0, 11.2 through 11.2-RELEASE-p11, 11.3, and 12.0 are affected by CVE-2019-5603.
Is CVE-2019-5603 a remote attack vulnerability?
CVE-2019-5603 does not constitute a remote attack vulnerability, as it requires local access to the affected FreeBSD system.
- agent/references
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/author
- agent/severity
- agent/weakness
- agent/event
- agent/description
- agent/first-publish-date
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/freebsd
- canonical/freebsd kernel
- version/freebsd kernel/11.0
- version/freebsd kernel/11.2
- version/freebsd kernel/11.2-p10
- version/freebsd kernel/11.2-p11
- version/freebsd kernel/11.2-p2
- version/freebsd kernel/11.2-p3
- version/freebsd kernel/11.2-p4
- version/freebsd kernel/11.2-p5
- version/freebsd kernel/11.2-p6
- version/freebsd kernel/11.2-p7
- version/freebsd kernel/11.2-p8
- version/freebsd kernel/11.2-p9
- version/freebsd kernel/11.2-rc3
- version/freebsd kernel/11.3
- version/freebsd kernel/12.0
- version/freebsd kernel/12.0-p1
- version/freebsd kernel/12.0-p2
- version/freebsd kernel/12.0-p3
- version/freebsd kernel/12.0-p4
- version/freebsd kernel/12.0-p5
- version/freebsd kernel/12.0-p6
- version/freebsd kernel/12.0-p7