SARA / Free Tools / CVE / CVE-2018-5390

CVE-2018-5390 — Linux kernel versions 4

Linux kernel versions 4.9+ can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service.

CVSS
— —
EPSS
6.84% (top 8.80%)
CWE
CWE-400
Published
2018-08-06T20:00:00.000Z
Last modified
2024-08-05T05:33:44.409Z
CVSS vector
—

01What is this vulnerability?

Linux kernel versions 4.9+ can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service.

02Affected products

VendorProductVersions
LinuxLinux Kernel4.9

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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