SUSE update for ruby2.5

1) Command Injection

EUVDB-ID: #VU52796

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-31799

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package ruby2.5 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 MicroOS: 5.0

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

SUSE Linux Enterprise Module for Basesystem: 15-SP2 - 15-SP3

ruby2.5-devel-extra: before 2.5.9-4.20.1

ruby2.5-devel: before 2.5.9-4.20.1

ruby2.5-stdlib-debuginfo: before 2.5.9-4.20.1

ruby2.5-stdlib: before 2.5.9-4.20.1

ruby2.5-debugsource: before 2.5.9-4.20.1

ruby2.5-debuginfo: before 2.5.9-4.20.1

ruby2.5: before 2.5.9-4.20.1

libruby2_5-2_5-debuginfo: before 2.5.9-4.20.1

libruby2_5-2_5: before 2.5.9-4.20.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213838-1/

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) Information disclosure

EUVDB-ID: #VU55488

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-31810

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists within Net::FTP in Ruby when processing PASV responses. A remote attacker can trick the victim to connect to a malicious FTP server and trick Net::FTP into connecting back to a given IP address and port. This potentially makes curl extract information about services that are otherwise private and not disclosed (e.g., the attacker can conduct port scans and service banner extractions).

Mitigation

Update the affected package ruby2.5 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 MicroOS: 5.0

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

SUSE Linux Enterprise Module for Basesystem: 15-SP2 - 15-SP3

ruby2.5-devel-extra: before 2.5.9-4.20.1

ruby2.5-devel: before 2.5.9-4.20.1

ruby2.5-stdlib-debuginfo: before 2.5.9-4.20.1

ruby2.5-stdlib: before 2.5.9-4.20.1

ruby2.5-debugsource: before 2.5.9-4.20.1

ruby2.5-debuginfo: before 2.5.9-4.20.1

ruby2.5: before 2.5.9-4.20.1

libruby2_5-2_5-debuginfo: before 2.5.9-4.20.1

libruby2_5-2_5: before 2.5.9-4.20.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213838-1/

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) Improper Certificate Validation

EUVDB-ID: #VU55489

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-32066

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists in Net::IMAP in Ruby, due to the gem does not raise an exception when StartTLS fails with an an unknown response. A remote attacker can perform a man-in-the-middle (MitM) attack.

Mitigation

Update the affected package ruby2.5 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 MicroOS: 5.0

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

SUSE Linux Enterprise Module for Basesystem: 15-SP2 - 15-SP3

ruby2.5-devel-extra: before 2.5.9-4.20.1

ruby2.5-devel: before 2.5.9-4.20.1

ruby2.5-stdlib-debuginfo: before 2.5.9-4.20.1

ruby2.5-stdlib: before 2.5.9-4.20.1

ruby2.5-debugsource: before 2.5.9-4.20.1

ruby2.5-debuginfo: before 2.5.9-4.20.1

ruby2.5: before 2.5.9-4.20.1

libruby2_5-2_5-debuginfo: before 2.5.9-4.20.1

libruby2_5-2_5: before 2.5.9-4.20.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213838-1/

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.