Use After Free in libxml2
CVE-2021-3516
- libxml2
- libxml
- libxmljs
- libxml2-nodejs
- libxml2-python3
Summary
There's a flaw in libxml2's "xmllint" in versions prior to 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.
- LOW
- LOCAL
- HIGH
- UNCHANGED
- REQUIRED
- NONE
- 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.
Advisory Timeline
- Published
