Allocation of Resources Without Limits or Throttling Affecting jbcs-httpd24-mod_ldap package, versions <0:2.4.37-57.jbcs.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
5.32% (92nd percentile)

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  • Snyk IDSNYK-RHEL7-JBCSHTTPD24MODLDAP-3625375
  • published26 Jul 2021
  • disclosed2 Jun 2020

Introduced: 2 Jun 2020

CVE-2020-11080  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade RHEL:7 jbcs-httpd24-mod_ldap to version 0:2.4.37-57.jbcs.el7 or higher.
This issue was patched in RHSA-2020:2644.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jbcs-httpd24-mod_ldap package and not the jbcs-httpd24-mod_ldap package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.

CVSS Base Scores

version 3.1