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



Published: 2020-12-02
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-11984
CVE-2020-11993
CWE-ID CWE-119
CWE-399
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		httpd24-httpd (Red Hat package)
Operating systems & Components / Operating system package or component

Red Hat Software Collections
Universal components / Libraries / Software for developers

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU35713

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-11984

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

httpd24-httpd (Red Hat package): 2.4.34-7.el7 - 2.4.34-18.el7

Red Hat Software Collections: 1 for RHEL 7.7

External links

http://access.redhat.com/errata/RHBA-2020:5280


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Resource management error

EUVDB-ID: #VU35854

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-11993

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

httpd24-httpd (Red Hat package): 2.4.34-7.el7 - 2.4.34-18.el7

Red Hat Software Collections: 1 for RHEL 7.7

External links

http://access.redhat.com/errata/RHBA-2020:5280


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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