SUSE update for ruby2.5

Published: 2023-10-24

Risk	Medium
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2021-33621 CVE-2021-41817 CVE-2023-28755 CVE-2023-28756
CWE-ID	CWE-113 CWE-185
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #3 is available.
Vulnerable software Subscribe	Basesystem Module Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications 15 Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 Operating systems & Components / Operating system SUSE Linux Enterprise Real Time 15 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 15 Operating systems & Components / Operating system SUSE Linux Enterprise Desktop 15 Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 SP3 LTSS Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 SP2 LTSS Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 SP1 LTSS Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing LTSS 15 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing ESPOS 15 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS Operating systems & Components / Operating system openSUSE Leap Operating systems & Components / Operating system SUSE Enterprise Storage Operating systems & Components / Operating system SUSE Manager Retail Branch Server Operating systems & Components / Operating system SUSE Manager Server Operating systems & Components / Operating system SUSE Manager Proxy Operating systems & Components / Operating system SUSE CaaS Platform Operating systems & Components / Operating system ruby2.5-doc-ri Operating systems & Components / Operating system package or component libruby2_5-2_5-debuginfo Operating systems & Components / Operating system package or component ruby2.5 Operating systems & Components / Operating system package or component ruby2.5-stdlib-debuginfo Operating systems & Components / Operating system package or component ruby2.5-debugsource Operating systems & Components / Operating system package or component ruby2.5-debuginfo Operating systems & Components / Operating system package or component ruby2.5-doc Operating systems & Components / Operating system package or component ruby2.5-stdlib Operating systems & Components / Operating system package or component libruby2_5-2_5 Operating systems & Components / Operating system package or component ruby2.5-devel Operating systems & Components / Operating system package or component ruby2.5-devel-extra Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) HTTP response splitting

EUVDB-ID: #VU69506

Risk: Medium

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33621

CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP splitting attacks.

The vulnerability exists due to software does not corrector process CRLF character sequences when handling cookies. A remote attacker can send specially crafted request containing CRLF sequence and make the application to send a split HTTP response.

Successful exploitation of the vulnerability may allow an attacker perform cache poisoning attack.

Mitigation

Update the affected package ruby2.5 to the latest version.

Vulnerable software versions

Basesystem Module: 15-SP4 - 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP1 - SP5

SUSE Linux Enterprise Server 15: SP1 - SP5

SUSE Linux Enterprise Real Time 15: SP4 - SP5

SUSE Linux Enterprise High Performance Computing 15: SP1 - SP5

SUSE Linux Enterprise Desktop 15: SP4 - SP5

SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15 SP1 LTSS: 15-SP1

SUSE Linux Enterprise High Performance Computing LTSS 15: SP3

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

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

openSUSE Leap: 15.4 - 15.5

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.2 - 4.3

SUSE Manager Server: 4.2 - 4.3

SUSE Manager Proxy: 4.2 - 4.3

SUSE CaaS Platform: 4.0

ruby2.5-doc-ri: before 2.5.9-150000.4.29.1

libruby2_5-2_5-debuginfo: before 2.5.9-150000.4.29.1

ruby2.5: before 2.5.9-150000.4.29.1

ruby2.5-stdlib-debuginfo: before 2.5.9-150000.4.29.1

ruby2.5-debugsource: before 2.5.9-150000.4.29.1

ruby2.5-debuginfo: before 2.5.9-150000.4.29.1

ruby2.5-doc: before 2.5.9-150000.4.29.1

ruby2.5-stdlib: before 2.5.9-150000.4.29.1

libruby2_5-2_5: before 2.5.9-150000.4.29.1

ruby2.5-devel: before 2.5.9-150000.4.29.1

ruby2.5-devel-extra: before 2.5.9-150000.4.29.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234176-1/

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) Incorrect Regular Expression

EUVDB-ID: #VU59824

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-2021-41817

CWE-ID: CWE-185 - Incorrect Regular Expression

Exploit availability: No

Description

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

The vulnerability exists due to insufficient input validation when processing regular expressions on date parsing methods. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Mitigation

Update the affected package ruby2.5 to the latest version.

Vulnerable software versions

Basesystem Module: 15-SP4 - 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP1 - SP5

SUSE Linux Enterprise Server 15: SP1 - SP5

SUSE Linux Enterprise Real Time 15: SP4 - SP5

SUSE Linux Enterprise High Performance Computing 15: SP1 - SP5

SUSE Linux Enterprise Desktop 15: SP4 - SP5

SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15 SP1 LTSS: 15-SP1

SUSE Linux Enterprise High Performance Computing LTSS 15: SP3

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

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

openSUSE Leap: 15.4 - 15.5

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.2 - 4.3

SUSE Manager Server: 4.2 - 4.3

SUSE Manager Proxy: 4.2 - 4.3

SUSE CaaS Platform: 4.0

ruby2.5-doc-ri: before 2.5.9-150000.4.29.1

libruby2_5-2_5-debuginfo: before 2.5.9-150000.4.29.1

ruby2.5: before 2.5.9-150000.4.29.1

ruby2.5-stdlib-debuginfo: before 2.5.9-150000.4.29.1

ruby2.5-debugsource: before 2.5.9-150000.4.29.1

ruby2.5-debuginfo: before 2.5.9-150000.4.29.1

ruby2.5-doc: before 2.5.9-150000.4.29.1

ruby2.5-stdlib: before 2.5.9-150000.4.29.1

libruby2_5-2_5: before 2.5.9-150000.4.29.1

ruby2.5-devel: before 2.5.9-150000.4.29.1

ruby2.5-devel-extra: before 2.5.9-150000.4.29.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234176-1/

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) Incorrect Regular Expression

EUVDB-ID: #VU74004

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2023-28755

CWE-ID: CWE-185 - Incorrect Regular Expression

Exploit availability: No

Description

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

The vulnerability exists due to insufficient input validation when processing URLs. A remote attacker can pass specially crafted URL to the application and perform regular expression denial of service (ReDos) attack.

Mitigation

Update the affected package ruby2.5 to the latest version.

Vulnerable software versions

Basesystem Module: 15-SP4 - 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP1 - SP5

SUSE Linux Enterprise Server 15: SP1 - SP5

SUSE Linux Enterprise Real Time 15: SP4 - SP5

SUSE Linux Enterprise High Performance Computing 15: SP1 - SP5

SUSE Linux Enterprise Desktop 15: SP4 - SP5

SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15 SP1 LTSS: 15-SP1

SUSE Linux Enterprise High Performance Computing LTSS 15: SP3

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

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

openSUSE Leap: 15.4 - 15.5

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.2 - 4.3

SUSE Manager Server: 4.2 - 4.3

SUSE Manager Proxy: 4.2 - 4.3

SUSE CaaS Platform: 4.0

ruby2.5-doc-ri: before 2.5.9-150000.4.29.1

libruby2_5-2_5-debuginfo: before 2.5.9-150000.4.29.1

ruby2.5: before 2.5.9-150000.4.29.1

ruby2.5-stdlib-debuginfo: before 2.5.9-150000.4.29.1

ruby2.5-debugsource: before 2.5.9-150000.4.29.1

ruby2.5-debuginfo: before 2.5.9-150000.4.29.1

ruby2.5-doc: before 2.5.9-150000.4.29.1

ruby2.5-stdlib: before 2.5.9-150000.4.29.1

libruby2_5-2_5: before 2.5.9-150000.4.29.1

ruby2.5-devel: before 2.5.9-150000.4.29.1

ruby2.5-devel-extra: before 2.5.9-150000.4.29.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234176-1/

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. However, proof of concept for this vulnerability is available.

4) Incorrect Regular Expression

EUVDB-ID: #VU74007

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-2023-28756

CWE-ID: CWE-185 - Incorrect Regular Expression

Exploit availability: No

Description

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

The vulnerability exists due to insufficient input validation when processing strings that have specific characters. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Mitigation

Update the affected package ruby2.5 to the latest version.

Vulnerable software versions

Basesystem Module: 15-SP4 - 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP1 - SP5

SUSE Linux Enterprise Server 15: SP1 - SP5

SUSE Linux Enterprise Real Time 15: SP4 - SP5

SUSE Linux Enterprise High Performance Computing 15: SP1 - SP5

SUSE Linux Enterprise Desktop 15: SP4 - SP5

SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15 SP1 LTSS: 15-SP1

SUSE Linux Enterprise High Performance Computing LTSS 15: SP3

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

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

openSUSE Leap: 15.4 - 15.5

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.2 - 4.3

SUSE Manager Server: 4.2 - 4.3

SUSE Manager Proxy: 4.2 - 4.3

SUSE CaaS Platform: 4.0

ruby2.5-doc-ri: before 2.5.9-150000.4.29.1

libruby2_5-2_5-debuginfo: before 2.5.9-150000.4.29.1

ruby2.5: before 2.5.9-150000.4.29.1

ruby2.5-stdlib-debuginfo: before 2.5.9-150000.4.29.1

ruby2.5-debugsource: before 2.5.9-150000.4.29.1

ruby2.5-debuginfo: before 2.5.9-150000.4.29.1

ruby2.5-doc: before 2.5.9-150000.4.29.1

ruby2.5-stdlib: before 2.5.9-150000.4.29.1

libruby2_5-2_5: before 2.5.9-150000.4.29.1

ruby2.5-devel: before 2.5.9-150000.4.29.1

ruby2.5-devel-extra: before 2.5.9-150000.4.29.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234176-1/

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.