SUSE update for open-iscsi

Published: 2021-04-13

Risk	Critical
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2020-13987 CVE-2020-13988 CVE-2020-17437 CVE-2020-17438
CWE-ID	CWE-125 CWE-190 CWE-787
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Module for Legacy Software Operating systems & Components / Operating system SUSE Manager Proxy Operating systems & Components / Operating system SUSE Manager Retail Branch Server Operating systems & Components / Operating system SUSE Manager Server Operating systems & Components / Operating system 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 open-iscsi-devel Operating systems & Components / Operating system package or component open-iscsi-debugsource Operating systems & Components / Operating system package or component open-iscsi-debuginfo Operating systems & Components / Operating system package or component open-iscsi Operating systems & Components / Operating system package or component libopeniscsiusr0_2_0-debuginfo Operating systems & Components / Operating system package or component libopeniscsiusr0_2_0 Operating systems & Components / Operating system package or component iscsiuio-debuginfo Operating systems & Components / Operating system package or component iscsiuio Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU59117

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-2020-13987

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition in the uIP TCP/IP Stack component when calculating the checksums for IP packets in upper_layer_chksum in net/ipv4/uip.c. A remote attacker can send specially crafted traffic to the system, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation

Update the affected package open-iscsi to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Legacy Software: 15-SP2 - 15-SP3

SUSE Manager Proxy: 4.0

SUSE Manager Retail Branch Server: 4.0

SUSE Manager Server: 4.0

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

open-iscsi-devel: before 2.0.876-13.42.1

open-iscsi-debugsource: before 2.0.876-13.42.1

open-iscsi-debuginfo: before 2.0.876-13.42.1

open-iscsi: before 2.0.876-13.42.1

libopeniscsiusr0_2_0-debuginfo: before 2.0.876-13.42.1

libopeniscsiusr0_2_0: before 2.0.876-13.42.1

iscsiuio-debuginfo: before 0.7.8.2-13.42.1

iscsiuio: before 0.7.8.2-13.42.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20211164-1/

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) Integer overflow

EUVDB-ID: #VU48916

Risk: Low

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

CVE-ID: CVE-2020-13988

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow. A remote attacker on the local network can send a specially crafted IP packet, trigger integer overflow and cause a denial of service on the target system.

Mitigation

Update the affected package open-iscsi to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Legacy Software: 15-SP2 - 15-SP3

SUSE Manager Proxy: 4.0

SUSE Manager Retail Branch Server: 4.0

SUSE Manager Server: 4.0

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

open-iscsi-devel: before 2.0.876-13.42.1

open-iscsi-debugsource: before 2.0.876-13.42.1

open-iscsi-debuginfo: before 2.0.876-13.42.1

open-iscsi: before 2.0.876-13.42.1

libopeniscsiusr0_2_0-debuginfo: before 2.0.876-13.42.1

libopeniscsiusr0_2_0: before 2.0.876-13.42.1

iscsiuio-debuginfo: before 0.7.8.2-13.42.1

iscsiuio: before 0.7.8.2-13.42.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20211164-1/

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

3) Out-of-bounds write

EUVDB-ID: #VU59115

Risk: Critical

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-2020-17437

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing TCP packets with Urgent flag. A remote attacker can send specially crafted traffic to the system, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected package open-iscsi to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Legacy Software: 15-SP2 - 15-SP3

SUSE Manager Proxy: 4.0

SUSE Manager Retail Branch Server: 4.0

SUSE Manager Server: 4.0

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

open-iscsi-devel: before 2.0.876-13.42.1

open-iscsi-debugsource: before 2.0.876-13.42.1

open-iscsi-debuginfo: before 2.0.876-13.42.1

open-iscsi: before 2.0.876-13.42.1

libopeniscsiusr0_2_0-debuginfo: before 2.0.876-13.42.1

libopeniscsiusr0_2_0: before 2.0.876-13.42.1

iscsiuio-debuginfo: before 0.7.8.2-13.42.1

iscsiuio: before 0.7.8.2-13.42.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20211164-1/

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.

4) Out-of-bounds write

EUVDB-ID: #VU59116

Risk: Critical

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-2020-17438

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing IP packets. The code that reassembles fragmented packets fails to properly validate the total length of an incoming packet specified in its IP header, as well as the fragmentation offset value specified in the IP header. A remote attacker can send specially crafted IP packets to the system, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected package open-iscsi to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Legacy Software: 15-SP2 - 15-SP3

SUSE Manager Proxy: 4.0

SUSE Manager Retail Branch Server: 4.0

SUSE Manager Server: 4.0

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

open-iscsi-devel: before 2.0.876-13.42.1

open-iscsi-debugsource: before 2.0.876-13.42.1

open-iscsi-debuginfo: before 2.0.876-13.42.1

open-iscsi: before 2.0.876-13.42.1

libopeniscsiusr0_2_0-debuginfo: before 2.0.876-13.42.1

libopeniscsiusr0_2_0: before 2.0.876-13.42.1

iscsiuio-debuginfo: before 0.7.8.2-13.42.1

iscsiuio: before 0.7.8.2-13.42.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20211164-1/

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.