SUSE update for open-iscsi



Published: 2022-08-15
Risk Critical
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2020-13987
CVE-2020-13988
CVE-2020-17437
CWE-ID CWE-125
CWE-190
CWE-787
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		SUSE Linux Enterprise Server
Operating systems & Components / Operating system

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 3 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 Server: 12-SP3-BCL

open-iscsi-debugsource: before 2.0.876-53.34.1

open-iscsi-debuginfo: before 2.0.876-53.34.1

open-iscsi: before 2.0.876-53.34.1

libopeniscsiusr0_2_0-debuginfo: before 2.0.876-53.34.1

libopeniscsiusr0_2_0: before 2.0.876-53.34.1

iscsiuio-debuginfo: before 0.7.8.2-53.34.1

iscsiuio: before 0.7.8.2-53.34.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222806-1/


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 Server: 12-SP3-BCL

open-iscsi-debugsource: before 2.0.876-53.34.1

open-iscsi-debuginfo: before 2.0.876-53.34.1

open-iscsi: before 2.0.876-53.34.1

libopeniscsiusr0_2_0-debuginfo: before 2.0.876-53.34.1

libopeniscsiusr0_2_0: before 2.0.876-53.34.1

iscsiuio-debuginfo: before 0.7.8.2-53.34.1

iscsiuio: before 0.7.8.2-53.34.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222806-1/


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 Server: 12-SP3-BCL

open-iscsi-debugsource: before 2.0.876-53.34.1

open-iscsi-debuginfo: before 2.0.876-53.34.1

open-iscsi: before 2.0.876-53.34.1

libopeniscsiusr0_2_0-debuginfo: before 2.0.876-53.34.1

libopeniscsiusr0_2_0: before 2.0.876-53.34.1

iscsiuio-debuginfo: before 0.7.8.2-53.34.1

iscsiuio: before 0.7.8.2-53.34.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222806-1/


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.



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