SARA / Free Tools / CVE / CVE-2018-17158

CVE-2018-17158 — In FreeBSD before 11

In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error can occur when handling the client address length field in an NFSv4 request. Unprivileged remote users with access to the NFS server can crash the system by sending a specially crafted NFSv4 req

CVSS
— —
EPSS
4.47% (top 11.00%)
CWE
—
Published
2018-12-04T15:00:00.000Z
Last modified
2024-08-05T10:39:59.632Z
CVSS vector
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01What is this vulnerability?

In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error can occur when handling the client address length field in an NFSv4 request. Unprivileged remote users with access to the NFS server can crash the system by sending a specially crafted NFSv4 request.

02Affected products

VendorProductVersions
FreeBSDFreeBSDFreeBSD 11.2 before 11.2-RELEASE-p5

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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