Vulnerabilities > CVE-2020-9146 - Missing Release of Resource after Effective Lifetime vulnerability in Huawei Emui and Magic UI

047910
CVSS 5.5 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH
local
low complexity
huawei
CWE-772

Summary

A memory buffer error vulnerability exists in a component interface of Huawei Smartphone. Local attackers can exploit this vulnerability to cause memory leakage and doS attacks by carefully constructing attack scenarios.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • HTTP DoS
    An attacker performs flooding at the HTTP level to bring down only a particular web application rather than anything listening on a TCP/IP connection. This denial of service attack requires substantially fewer packets to be sent which makes DoS harder to detect. This is an equivalent of SYN flood in HTTP. The idea is to keep the HTTP session alive indefinitely and then repeat that hundreds of times. This attack targets resource depletion weaknesses in web server software. The web server will wait to attacker's responses on the initiated HTTP sessions while the connection threads are being exhausted.