Red Hat Enterprise Linux 8.4 update for the python38:3.8 and python38-devel:3.8 modules



Published: 2021-07-04 | Updated: 2021-07-10
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-1747
CVE-2020-14343
CWE-ID CWE-20
Exploitation vector Network
Public exploit Public exploit code for vulnerability #2 is available.
Vulnerable software
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Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Operating systems & Components / Operating system

Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Operating systems & Components / Operating system

Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Operating systems & Components / Operating system

Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Operating systems & Components / Operating system

Red Hat CodeReady Linux Builder for IBM z Systems
Operating systems & Components / Operating system

Red Hat Enterprise Linux Server - TUS
Operating systems & Components / Operating system

Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Operating systems & Components / Operating system

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Operating systems & Components / Operating system

Red Hat Enterprise Linux Server - AUS
Operating systems & Components / Operating system

Red Hat Enterprise Linux for x86_64 - Extended Update Support
Operating systems & Components / Operating system

Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Operating systems & Components / Operating system

Red Hat CodeReady Linux Builder for ARM 64
Operating systems & Components / Operating system

Red Hat CodeReady Linux Builder for Power, little endian
Operating systems & Components / Operating system

Red Hat CodeReady Linux Builder for x86_64
Operating systems & Components / Operating system

Red Hat Enterprise Linux for ARM 64
Operating systems & Components / Operating system

Red Hat Enterprise Linux for Power, little endian
Operating systems & Components / Operating system

Red Hat Enterprise Linux for IBM z Systems
Operating systems & Components / Operating system

Red Hat Enterprise Linux for x86_64
Operating systems & Components / Operating system

Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
Operating systems & Components / Operating system package or component

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Operating systems & Components / Operating system package or component

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU25823

Risk: High

CVSSv3.1:

CVE-ID: CVE-2020-1747

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when processing untrusted YAML files passed via the "full_load" method or with the "FullLoader" loader. A remote attacker can pass specially crafted input to the application and execute arbitrary code by abusing the python/object/new constructor.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support: 8.4

Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support: 8.4

Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support: 8.4

Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support: 8.4

Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions: 8.4

Red Hat CodeReady Linux Builder for IBM z Systems: 8.0

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.4

Red Hat Enterprise Linux Server - TUS: 8.4

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 8.4

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 8.4

Red Hat Enterprise Linux Server - AUS: 8.4

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 8.4

Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 8.4

Red Hat CodeReady Linux Builder for ARM 64: 8.0

Red Hat CodeReady Linux Builder for Power, little endian: 8.0

Red Hat CodeReady Linux Builder for x86_64: 8.0

Red Hat Enterprise Linux for ARM 64: 8

Red Hat Enterprise Linux for Power, little endian: 8

Red Hat Enterprise Linux for IBM z Systems: 8

Red Hat Enterprise Linux for x86_64: 8.0


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2021:2583

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Input validation error

EUVDB-ID: #VU54520

Risk: High

CVSSv3.1:

CVE-ID: CVE-2020-14343

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input when processing untrusted YAML files through the full_load method or with the FullLoader loader. A remote attacker can pass specially crafted input to the application and execute arbitrary code on the system by abusing the python/object/new constructor.

Note, the vulnerability exists due to incomplete patch for vulnerability #VU25823.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support: 8.4

Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support: 8.4

Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support: 8.4

Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support: 8.4

Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions: 8.4

Red Hat CodeReady Linux Builder for IBM z Systems: 8.0

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.4

Red Hat Enterprise Linux Server - TUS: 8.4

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 8.4

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 8.4

Red Hat Enterprise Linux Server - AUS: 8.4

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 8.4

Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 8.4

Red Hat CodeReady Linux Builder for ARM 64: 8.0

Red Hat CodeReady Linux Builder for Power, little endian: 8.0

Red Hat CodeReady Linux Builder for x86_64: 8.0

Red Hat Enterprise Linux for ARM 64: 8

Red Hat Enterprise Linux for Power, little endian: 8

Red Hat Enterprise Linux for IBM z Systems: 8

Red Hat Enterprise Linux for x86_64: 8.0


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2021:2583

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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