SUSE update for python3

Published: 2021-12-23

Risk	Medium
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2021-3426 CVE-2021-3733 CVE-2021-3737
CWE-ID	CWE-20 CWE-399 CWE-835
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system SUSE Enterprise Storage Operating systems & Components / Operating system SUSE CaaS Platform Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system python3-testsuite Operating systems & Components / Operating system package or component python3-tk-debuginfo Operating systems & Components / Operating system package or component python3-tk Operating systems & Components / Operating system package or component python3-idle Operating systems & Components / Operating system package or component python3-devel-debuginfo Operating systems & Components / Operating system package or component python3-devel Operating systems & Components / Operating system package or component python3-dbm-debuginfo Operating systems & Components / Operating system package or component python3-dbm Operating systems & Components / Operating system package or component python3-curses-debuginfo Operating systems & Components / Operating system package or component python3-curses Operating systems & Components / Operating system package or component python3-tools Operating systems & Components / Operating system package or component python3-debugsource Operating systems & Components / Operating system package or component python3-debuginfo Operating systems & Components / Operating system package or component python3-base Operating systems & Components / Operating system package or component python3 Operating systems & Components / Operating system package or component libpython3_6m1_0-debuginfo Operating systems & Components / Operating system package or component libpython3_6m1_0 Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Improper input validation

EUVDB-ID: #VU60098

Risk: Medium

CVSSv3.1: 5 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3426

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote authenticated user to gain access to sensitive information.

The vulnerability exists due to improper input validation within the Binding Support Function (Python) component in Oracle Communications Cloud Native Core Binding Support Function. A remote authenticated user can exploit this vulnerability to gain access to sensitive information.

Mitigation

Update the affected package python3 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15 - 15-SP1

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-SP1-LTSS

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS

python3-testsuite: before 3.6.15-3.91.3

python3-tk-debuginfo: before 3.6.15-3.91.4

python3-tk: before 3.6.15-3.91.4

python3-idle: before 3.6.15-3.91.4

python3-devel-debuginfo: before 3.6.15-3.91.3

python3-devel: before 3.6.15-3.91.3

python3-dbm-debuginfo: before 3.6.15-3.91.4

python3-dbm: before 3.6.15-3.91.4

python3-curses-debuginfo: before 3.6.15-3.91.4

python3-curses: before 3.6.15-3.91.4

python3-tools: before 3.6.15-3.91.3

python3-debugsource: before 3.6.15-3.91.4

python3-debuginfo: before 3.6.15-3.91.4

python3-base: before 3.6.15-3.91.3

python3: before 3.6.15-3.91.4

libpython3_6m1_0-debuginfo: before 3.6.15-3.91.3

libpython3_6m1_0: before 3.6.15-3.91.3

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20214015-2/

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.

2) Resource management error

EUVDB-ID: #VU58295

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3733

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 within the AbstractBasicAuthHandler class in urllib. A remote attacker with control over the server can perform regular expression denial of service attack during authentication.

Mitigation

Update the affected package python3 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15 - 15-SP1

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-SP1-LTSS

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS

python3-testsuite: before 3.6.15-3.91.3

python3-tk-debuginfo: before 3.6.15-3.91.4

python3-tk: before 3.6.15-3.91.4

python3-idle: before 3.6.15-3.91.4

python3-devel-debuginfo: before 3.6.15-3.91.3

python3-devel: before 3.6.15-3.91.3

python3-dbm-debuginfo: before 3.6.15-3.91.4

python3-dbm: before 3.6.15-3.91.4

python3-curses-debuginfo: before 3.6.15-3.91.4

python3-curses: before 3.6.15-3.91.4

python3-tools: before 3.6.15-3.91.3

python3-debugsource: before 3.6.15-3.91.4

python3-debuginfo: before 3.6.15-3.91.4

python3-base: before 3.6.15-3.91.3

python3: before 3.6.15-3.91.4

libpython3_6m1_0-debuginfo: before 3.6.15-3.91.3

libpython3_6m1_0: before 3.6.15-3.91.3

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20214015-2/

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.

3) Infinite loop

EUVDB-ID: #VU59089

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3737

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

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

The vulnerability exists due to infinite loop. A remote attacker who controls a malicious server can force the client to enter an infinite loop on a 100 Continue response.

Mitigation

Update the affected package python3 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15 - 15-SP1

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-SP1-LTSS

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS

python3-testsuite: before 3.6.15-3.91.3

python3-tk-debuginfo: before 3.6.15-3.91.4

python3-tk: before 3.6.15-3.91.4

python3-idle: before 3.6.15-3.91.4

python3-devel-debuginfo: before 3.6.15-3.91.3

python3-devel: before 3.6.15-3.91.3

python3-dbm-debuginfo: before 3.6.15-3.91.4

python3-dbm: before 3.6.15-3.91.4

python3-curses-debuginfo: before 3.6.15-3.91.4

python3-curses: before 3.6.15-3.91.4

python3-tools: before 3.6.15-3.91.3

python3-debugsource: before 3.6.15-3.91.4

python3-debuginfo: before 3.6.15-3.91.4

python3-base: before 3.6.15-3.91.3

python3: before 3.6.15-3.91.4

libpython3_6m1_0-debuginfo: before 3.6.15-3.91.3

libpython3_6m1_0: before 3.6.15-3.91.3

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20214015-2/

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.