vulnwire
5.3med

CVE-2018-16844

nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive CPU usage.

Published 8 y ago · modified 4 mo ago · JSON

CVSS
5.3
v3.0 · CNA
CISA KEV
No
not known exploited
EPSS
12.7%
percentile 96%
Public exploits
0
none known

nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive CPU usage. This issue affects nginx compiled with the ngx_http_v2_module (not compiled by default) if the 'http2' option of the 'listen' directive is used in a configuration file.

Exploit prediction (EPSS)

12.73% probability of exploitation in the next 30 days, higher than 96% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.05.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD3.17.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA3.05.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD2.07.8AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • [UNKNOWN] nginx

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
Technology feeds
nginx (RSS, critical only)

References

  • debian.org /security/2018/dsa-4335 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=CVE-2018-16844 · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2018:3680 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2018:3681 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • securityfocus.com /bid/105868 · vdb-entry, x_refsource_BID, x_transferred
  • mailman.nginx.org /pipermail/nginx-announce/2018/000220.html · x_refsource_MISC, x_transferred
  • securitytracker.com /id/1042038 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • usn.ubuntu.com /3812-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2019-09/msg00035.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • support.apple.com /kb/HT212818 · x_refsource_CONFIRM, x_transferred
  • seclists.org /fulldisclosure/2021/Sep/36 · mailing-list, x_refsource_FULLDISC, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.