SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-5390

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.

HIGH 7.5EPSS 73.7%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 73.7%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

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 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
73.72% probability · 99th percentile
CISA KEV
Not listed
Weakness
CWE-400
Affected
redhat/virtualization · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation · linux/linux kernel · canonical/ubuntu linux · debian/debian linux · hp/aruba airwave amp · hp/aruba clearpass policy manager · f5/big-ip access policy manager · f5/big-ip advanced firewall manager · f5/big-ip analytics · f5/big-ip application acceleration manager · f5/big-ip application security manager · f5/big-ip domain name system · f5/big-ip edge gateway · f5/big-ip fraud protection service · +18 more
Source
cret@cert.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.