SARA / Free Tools / CVE / CVE-2018-17157

CVE-2018-17157 — In FreeBSD before 11

In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error when handling opcodes can cause memory corruption by sending a specially crafted NFSv4 request. Unprivileged remote users with access to the NFS server may be able to execute arbitrary code.

CVSS
— —
EPSS
12.18% (top 6.30%)
CWE
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Published
2018-12-04T15:00:00.000Z
Last modified
2024-08-05T10:39:59.601Z
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 when handling opcodes can cause memory corruption by sending a specially crafted NFSv4 request. Unprivileged remote users with access to the NFS server may be able to execute arbitrary code.

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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