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Vulnerabilities / CVE-2018-5703

critical

CVE-2018-5703

kernel: net/ipv6/tcp_ipv6.c: tcp_v6_syn_recv_sock function allows attackers to cause a denial of service

Published Modified CWE 787
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (medium), Ubuntu (medium).

Description

The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel through 4.14.11 allows attackers to cause a denial of service (slab out-of-bounds write) or possibly have unspecified other impact via vectors involving TLS.

Affected packages and fixed versions

SourcePackageFixed in
debian 11linux4.15.11-1
debian 12linux4.15.11-1
debian 13linux4.15.11-1
debian 14linux4.15.11-1
echolinux4.15.11-1
root.io debian 11rootio-linux4.15.11-1
root.io debian 12rootio-linux4.15.11-1
root.io debian 13rootio-linux4.15.11-1
ubuntu 16.04linux-azure, linux-gcp, linux-hwe and 1 more4.15.0-1013.13~16.04.2 and 2 more
ubuntu 16.04-ESMlinux-azure, linux-gcp, linux-hwe and 1 more4.15.0-1013.13~16.04.2 and 2 more
Show all 16 entries from 10 sources
SourcePackageFixed in
debian 11linux4.15.11-1
debian 12linux4.15.11-1
debian 13linux4.15.11-1
debian 14linux4.15.11-1
echolinux4.15.11-1
root.io debian 11rootio-linux4.15.11-1
root.io debian 12rootio-linux4.15.11-1
root.io debian 13rootio-linux4.15.11-1
ubuntu 16.04linux-azure4.15.0-1013.13~16.04.2
ubuntu 16.04linux-gcp4.15.0-1014.14~16.04.1
ubuntu 16.04linux-hwe4.15.0-24.26~16.04.1
ubuntu 16.04linux-hwe-edge4.15.0-24.26~16.04.1
ubuntu 16.04-ESMlinux-azure4.15.0-1013.13~16.04.2
ubuntu 16.04-ESMlinux-gcp4.15.0-1014.14~16.04.1
ubuntu 16.04-ESMlinux-hwe4.15.0-24.26~16.04.1
ubuntu 16.04-ESMlinux-hwe-edge4.15.0-24.26~16.04.1

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.