SB2020093088 - Multiple vulnerabilities in Several Huawei Smartphones

Description

This security bulletin contains information about 3 vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2020-9108)

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

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

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

The vulnerability exists due to a boundary condition. A local attacker can send a specially crafted message, trigger out-of-bounds read error and cause the process reboot.

2) Information disclosure (CVE-ID: CVE-2020-9109)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

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

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to the affected device does not sufficiently validate the identity of smart wearable device. A local administrator can gain unauthorized access to sensitive information on the system.

3) Out-of-bounds read (CVE-ID: CVE-2020-9107)

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

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

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

The vulnerability exists due to a boundary condition. A local attacker can send a specially crafted message, trigger out-of-bounds read error and cause the process reboot.

Remediation

Install update from vendor's website.

References

• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200930-01-outofbound-en
• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200930-01-dos-en
• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200930-01-readwriteoutbound-en