SB2020120201 - Red Hat Software Collections 1 for RHEL 7.7 update for Apache HTTP Server

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Main Vulnerability Database SB2020120201

SB2020120201 - Red Hat Software Collections 1 for RHEL 7.7 update for Apache HTTP Server

Published: December 2, 2020 Updated: July 3, 2025

Security Bulletin ID SB2020120201
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2020-11984)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in od_proxy_uwsgi module. A remote attacker can send a specially crafted request to the web server, trigger memory corruption and gain access to sensitive information or execute arbitrary code on the target system.


2) Resource management error (CVE-ID: CVE-2020-11993)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the application while processing HTTP/2 requests with enabled trace/debug for HTTP/2 connections. A remote attacker can send specially crafted HTTP/2 requests to Apache HTTP Server and force it to make logging statements on wrong connection for certain traffic edge patterns. This results in concurrent use of memory pools for separate connections and triggers denial of service condition.


Remediation

Install update from vendor's website.

References