5.9med

CVE-2016-1546

The Apache HTTP Server 2.4.17 and 2.4.18, when mod_http2 is enabled, does not limit the number of simultaneous stream workers for a single…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
5.9
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
15.9%
percentile 97%
Public exploits
0
none known

Summary

The Apache HTTP Server 2.4.17 and 2.4.18, when mod_http2 is enabled, does not limit the number of simultaneous stream workers for a single HTTP/2 connection, which allows remote attackers to cause a denial of service (stream-processing outage) via modified flow-control windows.

Exploit prediction (EPSS)

15.92% probability of exploitation in the next 30 days, higher than 97% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.04.3AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
Technology feeds
Apache HTTP Server (RSS, critical only)

References

  • securityfocus.com /bid/92331 · vdb-entry, x_refsource_BID, x_transferred
  • httpd.apache.org /security/vulnerabilities_24.html · x_refsource_CONFIRM, x_transferred
  • security.gentoo.org /glsa/201610-02 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • access.redhat.com /errata/RHSA-2017:1161 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • oracle.com /technetwork/security-advisory/cpuoct2016-2881722.html · x_refsource_CONFIRM, x_transferred
  • apache.org /dist/httpd/CHANGES_2.4 · x_refsource_CONFIRM, x_transferred
  • svn.apache.org /viewvc?view=revision&revision=1733727 · x_refsource_CONFIRM, x_transferred
  • oracle.com /technetwork/topics/security/bulletinoct2016-3090566.html · x_refsource_CONFIRM, x_transferred
  • security.netapp.com /advisory/ntap-20180601-0001/ · x_refsource_CONFIRM, x_transferred
  • lists.apache.org /thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apach · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apach · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/rb14daf9cc4e28d18cdc15d6a6ca74e565672fabf7ad89541071d008b%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, x_transferred
  • lists.apache.org /thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apac · mailing-list, x_refsource_MLIST, 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.