Use After Free (UAF) vulnerability in the Vdecoderservice service. Successful exploitation of this vulnerability may cause the image decoding feature to perform abnormally.
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://consumer.huawei.com/en/support/bulletin/2023/7/ | vendor advisory |
| https://device.harmonyos.com/en/docs/security/update/security-bulletins-202307-0000001587168858 | vendor advisory |