SB2021012812 - Multiple vulnerabiities in Huawei Taurus-AL00A

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Double Free (CVE-ID: CVE-2021-22303)

The vulnerability allows a local attacker to compromise the target system.

The vulnerability exists due to a lack of muti-thread protection when a function is called. A local attacker can pass specially crafted data to the application, trigger double free error and crash the module or compromise normal service.

2) Use-after-free (CVE-ID: CVE-2021-22304)

The vulnerability allows a local attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when dealing with some messages. A local attacker can send specific message, crash the target module and compromise normal service.

3) Out-of-bounds read (CVE-ID: CVE-2021-22302)

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

The vulnerability exists due to a boundary condition. A local administrator can trigger out-of-bounds read error and read contents of memory on the system.

Remediation

Install update from vendor's website.

References

• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210127-02-smartphone-en
• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210127-03-smartphone-en
• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210127-01-smartphone-en