Use After Free
CVE-2021-42379
Summary
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the next_input_file function
- LOW
- NETWORK
- HIGH
- UNCHANGED
- NONE
- HIGH
- HIGH
- HIGH
CWE-416 - Use After Free
Use-after-free (UaF) vulnerability occurs when the application is using a pointer to memory that has been freed. Any attempt to read/write to a buffer after it is de-allocated allows memory corruption, sensitive information exposure, and can potentially lead to arbitrary code execution.
References
Advisory Timeline
- Published