There is a denial of service vulnerability in some Huawei smartphones. Due to the improper processing of received abnormal messages, remote attackers may exploit this vulnerability to cause a denial of service (DoS) on the specific module.

There is a buffer overflow vulnerability in several Huawei products. The system does not sufficiently validate certain configuration parameter which is passed from user that would cause buffer overflow. The attacker should trick the user into installing and running a malicious application with a high privilege, successful exploit may cause code execution. Affected product include Huawei HONOR 20 PRO, Mate 20, Mate 20 Pro, Mate 20 X, P30, P30 Pro, Hima-L29C, Laya-AL00EP, Princeton-AL10B, Tony-AL00B, Yale-L61A, Yale-TL00B and YaleP-AL10B.

Huawei smartphones HONOR 20 PRO Versions earlier than 10.1.0.230(C432E9R5P1),Versions earlier than 10.1.0.231(C10E3R3P2),Versions earlier than 10.1.0.231(C185E3R5P1),Versions earlier than 10.1.0.231(C636E3R3P1);Versions earlier than 10.1.0.212(C432E10R3P4),Versions earlier than 10.1.0.213(C636E3R4P3),Versions earlier than 10.1.0.214(C10E5R4P3),Versions earlier than 10.1.0.214(C185E3R3P3);Versions earlier than 10.1.0.212(C00E210R5P1);Versions earlier than 10.1.0.160(C00E160R2P11);Versions earlier than 10.1.0.160(C00E160R2P11);Versions earlier than 10.1.0.160(C01E160R2P11);Versions earlier than 10.1.0.160(C00E160R2P11);Versions earlier than 10.1.0.160(C00E160R8P12);Versions earlier than 10.1.0.230(C432E9R5P1),Versions earlier than 10.1.0.231(C10E3R3P2),Versions earlier than 10.1.0.231(C636E3R3P1);Versions earlier than 10.1.0.225(C431E3R1P2),Versions earlier than 10.1.0.225(C432E3R1P2) contain an information vulnerability. A module has a design error that is lack of control of input. Attackers can exploit this vulnerability to obtain some information. This can lead to information leak.

HUAWEI Mate 20 versions Versions earlier than 10.1.0.160(C00E160R3P8);HUAWEI Mate 20 Pro versions Versions earlier than 10.1.0.270(C431E7R1P5),Versions earlier than 10.1.0.270(C635E3R1P5),Versions earlier than 10.1.0.273(C636E7R2P4);HUAWEI Mate 20 X versions Versions earlier than 10.1.0.160(C00E160R2P8);HUAWEI P30 versions Versions earlier than 10.1.0.160(C00E160R2P11);HUAWEI P30 Pro versions Versions earlier than 10.1.0.160(C00E160R2P8);HUAWEI Mate 20 RS versions Versions earlier than 10.1.0.160(C786E160R3P8);HonorMagic2 versions Versions earlier than 10.0.0.187(C00E61R2P11);Honor20 versions Versions earlier than 10.0.0.175(C00E58R4P11);Honor20 PRO versions Versions earlier than 10.0.0.194(C00E62R8P12);HonorMagic2 versions Versions earlier than 10.0.0.187(C00E61R2P11);HonorV20 versions Versions earlier than 10.0.0.188(C00E62R2P11) have an improper authentication vulnerability. The system does not properly sign certain encrypted file, the attacker should gain the key used to encrypt the file, successful exploit could cause certain file be forged

Huawei Smartphones HONOR 20 PRO;Honor View 20;HONOR 20 have an improper handling of exceptional condition Vulnerability. A component cannot deal with an exception correctly. Attackers can exploit this vulnerability by sending malformed message. This could compromise normal service of affected phones.

Honor 20;HONOR 20 PRO;Honor Magic2;HUAWEI Mate 20 X;HUAWEI P30;HUAWEI P30 Pro;Honor View 20 smartphones with versions earlier than 10.0.0.187(C00E60R4P11); versions earlier than 10.0.0.187(C00E60R4P11); versions earlier than 10.0.0.176(C00E60R2P11);9.1.0.135(C00E133R2P1); versions earlier than 10.1.0.123(C431E22R3P5), versions earlier than 10.1.0.126(C636E5R3P4), versions earlier than 10.1.0.160(C00E160R2P11); versions earlier than 10.1.0.126(C185E8R5P1), versions earlier than 10.1.0.126(C636E9R2P4), versions earlier than 10.1.0.160(C00E160R2P8); versions earlier than 10.0.0.179(C636E3R4P3), versions earlier than 10.0.0.180(C185E3R3P3), versions earlier than 10.0.0.180(C432E10R3P4), versions earlier than 10.0.0.181(C675E5R1P2) have an out of bound read vulnerability. The software reads data past the end of the intended buffer. The attacker tricks the user into installing a crafted application, successful exploit may cause information disclosure or service abnormal.

The Bluetooth BR/EDR specification up to and including version 5.1 permits sufficiently low encryption key length and does not prevent an attacker from influencing the key length negotiation. This allows practical brute-force attacks (aka "KNOB") that can decrypt traffic and inject arbitrary ciphertext without the victim noticing.