CVE Vulnerabilities

CVE-2020-1875

Access of Uninitialized Pointer

Published: Feb 28, 2020 | Modified: Mar 04, 2020
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
2.1 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu

NIP6800;Secospace USG6600;USG9500 products versions of V500R001C30; V500R001C60SPC500; V500R005C00SPC100 have an invalid pointer access vulnerability. The software system access an invalid pointer when an abnormal condition occurs in certain operation. Successful exploit could cause certain process reboot. Affected product versions include:NIP6800 versions V500R001C30,V500R001C60SPC500;Secospace USG6600 versions V500R001C30SPC200,V500R001C30SPC600,V500R001C60SPC500;USG9500 versions V500R001C30SPC200,V500R001C30SPC600,V500R001C60SPC500.

Weakness

The product accesses or uses a pointer that has not been initialized.

Affected Software

Name Vendor Start Version End Version
Nip6800_firmware Huawei v500r001c30 v500r001c30
Nip6800_firmware Huawei v500r001c60spc500 v500r001c60spc500

Extended Description

If the pointer contains an uninitialized value, then the value might not point to a valid memory location. This could cause the product to read from or write to unexpected memory locations, leading to a denial of service. If the uninitialized pointer is used as a function call, then arbitrary functions could be invoked. If an attacker can influence the portion of uninitialized memory that is contained in the pointer, this weakness could be leveraged to execute code or perform other attacks. Depending on memory layout, associated memory management behaviors, and product operation, the attacker might be able to influence the contents of the uninitialized pointer, thus gaining more fine-grained control of the memory location to be accessed.

References