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CVE-2021-0397 is a double free vulnerability in Android's Bluetooth service discovery implementation, specifically in the sdp_copy_raw_data function within sdp_discovery.cc. Improper memory management can cause the same memory region to be freed more than once while processing SDP data, creating heap corruption conditions. An attacker in Bluetooth range may be able to trigger the flaw remotely without user interaction, potentially leading to system compromise and arbitrary code execution in the affected context on Android 8.1, 9, 10, and 11.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
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No public activity observed for this vulnerability.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
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