SUSE update for open-iscsi
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
1) Improper Authentication
EUVDB-ID: #VU23404
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-17437
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to an error in authentication process. A local non-privileged user can gain elevated privileges on the device.
Update the affected package open-iscsi to the latest version.
Vulnerable software versionsSUSE OpenStack Cloud Crowbar: 9
SUSE Linux Enterprise Server for SAP: 12-SP4
SUSE Linux Enterprise Server: 12-SP4-LTSS - 12-SP5
SUSE OpenStack Cloud: 9
open-iscsi-debugsource: before 2.0.876-12.27.2
open-iscsi-debuginfo: before 2.0.876-12.27.2
open-iscsi: before 2.0.876-12.27.2
libopeniscsiusr0_2_0-debuginfo: before 2.0.876-12.27.2
libopeniscsiusr0_2_0: before 2.0.876-12.27.2
iscsiuio-debuginfo: before 0.7.8.2-12.27.2
iscsiuio: before 0.7.8.2-12.27.2
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20210663-1/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) 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
DescriptionThe 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.
Update the affected package open-iscsi to the latest version.
Vulnerable software versionsSUSE OpenStack Cloud Crowbar: 9
SUSE Linux Enterprise Server for SAP: 12-SP4
SUSE Linux Enterprise Server: 12-SP4-LTSS - 12-SP5
SUSE OpenStack Cloud: 9
open-iscsi-debugsource: before 2.0.876-12.27.2
open-iscsi-debuginfo: before 2.0.876-12.27.2
open-iscsi: before 2.0.876-12.27.2
libopeniscsiusr0_2_0-debuginfo: before 2.0.876-12.27.2
libopeniscsiusr0_2_0: before 2.0.876-12.27.2
iscsiuio-debuginfo: before 0.7.8.2-12.27.2
iscsiuio: before 0.7.8.2-12.27.2
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20210663-1/
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) 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
DescriptionThe 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.
MitigationUpdate the affected package open-iscsi to the latest version.
Vulnerable software versionsSUSE OpenStack Cloud Crowbar: 9
SUSE Linux Enterprise Server for SAP: 12-SP4
SUSE Linux Enterprise Server: 12-SP4-LTSS - 12-SP5
SUSE OpenStack Cloud: 9
open-iscsi-debugsource: before 2.0.876-12.27.2
open-iscsi-debuginfo: before 2.0.876-12.27.2
open-iscsi: before 2.0.876-12.27.2
libopeniscsiusr0_2_0-debuginfo: before 2.0.876-12.27.2
libopeniscsiusr0_2_0: before 2.0.876-12.27.2
iscsiuio-debuginfo: before 0.7.8.2-12.27.2
iscsiuio: before 0.7.8.2-12.27.2
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20210663-1/
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.
4) 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
DescriptionThe 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.
MitigationUpdate the affected package open-iscsi to the latest version.
Vulnerable software versionsSUSE OpenStack Cloud Crowbar: 9
SUSE Linux Enterprise Server for SAP: 12-SP4
SUSE Linux Enterprise Server: 12-SP4-LTSS - 12-SP5
SUSE OpenStack Cloud: 9
open-iscsi-debugsource: before 2.0.876-12.27.2
open-iscsi-debuginfo: before 2.0.876-12.27.2
open-iscsi: before 2.0.876-12.27.2
libopeniscsiusr0_2_0-debuginfo: before 2.0.876-12.27.2
libopeniscsiusr0_2_0: before 2.0.876-12.27.2
iscsiuio-debuginfo: before 0.7.8.2-12.27.2
iscsiuio: before 0.7.8.2-12.27.2
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20210663-1/
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.
5) 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
DescriptionThe 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.
MitigationUpdate the affected package open-iscsi to the latest version.
Vulnerable software versionsSUSE OpenStack Cloud Crowbar: 9
SUSE Linux Enterprise Server for SAP: 12-SP4
SUSE Linux Enterprise Server: 12-SP4-LTSS - 12-SP5
SUSE OpenStack Cloud: 9
open-iscsi-debugsource: before 2.0.876-12.27.2
open-iscsi-debuginfo: before 2.0.876-12.27.2
open-iscsi: before 2.0.876-12.27.2
libopeniscsiusr0_2_0-debuginfo: before 2.0.876-12.27.2
libopeniscsiusr0_2_0: before 2.0.876-12.27.2
iscsiuio-debuginfo: before 0.7.8.2-12.27.2
iscsiuio: before 0.7.8.2-12.27.2
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20210663-1/
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.
