Multiple vulnerabilities in Red Hat OpenShift Container Platform (machine-os-content-container)



Published: 2019-11-21 | Updated: 2024-02-27
Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2019-15718
CVE-2019-14287
CVE-2018-12207
CWE-ID CWE-276
CWE-264
CWE-119
Exploitation vector Local network
Public exploit Public exploit code for vulnerability #2 is available.
Vulnerable software
Subscribe 		Red Hat OpenShift Container Platform
Client/Desktop applications / Software for system administration

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Incorrect default permissions

EUVDB-ID: #VU20837

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-15718

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a local user to change DNS settings.

The vulnerability exists due to the systemd-resolved D-Bus interface does not enforce appropriate access controls. A local unprivileged user can modify DNS resolver settings.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat OpenShift Container Platform: 4.1.0 - 4.1.23

External links

http://access.redhat.com/errata/RHSA-2019:3941


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU21782

Risk: Low

CVSSv3.1: 6.3 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-14287

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists in the implementation of the "sudo" application when processing commands that are configured to run with ALL keyword. A local user with privileges to use sudo for specific applications on the system can escalate privileges and run the application as root (even if precisely restricted), if user id "-1" or "4294967295" is used.

Example:

The following entry instructs sudo to allow user bob to run "/usr/bin/id" command as any user on the system but root:

myhost bob = (ALL, !root) /usr/bin/id

The following command will allow bob execute the  "/usr/bin/id" command as root:

sudo -u#-1 id -u

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat OpenShift Container Platform: 4.1.0 - 4.1.23

External links

http://access.redhat.com/errata/RHSA-2019:3941


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

3) Buffer overflow

EUVDB-ID: #VU22712

Risk: Low

CVSSv3.1: 4.2 [CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-12207

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform denial of service (DoS) attack.

The vulnerability exists due to a boundary error in the mechanism responsible for error handling on some Intel platforms. A local user of a guest operating system can use a specially crafted application to trigger memory corruption and cause the host system to stop responding.

Successful exploitation of this vulnerability may result in a denial of service (DoS) attack.

Below is the list of processor families that are affected by this vulnerability:

Client:

  • Intel Core i3 Processors
  • Intel Core i5 Processors
  • Intel Core i7 Processors
  • Intel Core m Processor Family
  • 2nd generation Intel Core Processors
  • 3rd generation Intel Core Processors
  • 4th generation Intel Core Processors
  • 5th generation Intel Core Processors
  • 6th generation Intel Core Processors
  • 7th generation Intel Core Processors
  • 8th generation Intel Core Processors
  • Intel Core X-series Processor Family
  • Intel Pentium Gold Processor Series
  • Intel Celeron Processor G Series

Server:

  • 2nd Generation Intel Xeon Scalable Processors
  • Intel Xeon Scalable Processors
  • Intel Xeon Processor E7 v4 Family
  • Intel Xeon Processor E7 v3 Family
  • Intel Xeon Processor E7 v2 Family
  • Intel Xeon Processor E7 Family
  • Intel Xeon Processor E5 v4 Family
  • Intel Xeon Processor E5 v3 Family
  • Intel Xeon Processor E5 v2 Family
  • Intel Xeon Processor E5 Family
  • Intel Xeon Processor E3 v6 Family
  • Intel Xeon Processor E3 v5 Family
  • Intel Xeon Processor E3 v4 Family
  • Intel Xeon Processor E3 v3 Family
  • Intel Xeon Processor E3 v2 Family
  • Intel Xeon Processor E3 Family
  • Intel Xeon E Processor
  • Intel Xeon D Processor
  • Intel Xeon W Processor
  • Legacy Intel Xeon Processor

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat OpenShift Container Platform: 4.1.0 - 4.1.23

External links

http://access.redhat.com/errata/RHSA-2019:3941


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



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