SB2022081543 - SUSE update for open-iscsi

Description

This security bulletin contains information about 3 vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2020-13987)

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

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

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.

2) Integer overflow (CVE-ID: CVE-2020-13988)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

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.

3) Out-of-bounds write (CVE-ID: CVE-2020-17437)

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

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Red

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.

Remediation

Install update from vendor's website.

References

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