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CVE-2023-52518 is a memory-leak vulnerability in the Linux kernel Bluetooth HCI codec handling subsystem. Codec entries allocated while reading a Bluetooth controller's supported codec capabilities are added to the device's local_codecs list but were not released during cleanup. The leak occurs through the codec discovery path, including hci_read_codec_capabilities() and hci_codec_list_add(), when a controller is opened and reports supported codecs.
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No public exploit code observed for this vulnerability.
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3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Information leak in Linux kernel Bluetooth HCI codec handling.
Information-disclosure vulnerability in Linux kernel Bluetooth HCI codec handling.
A Linux kernel Bluetooth hci_codec vulnerability that leaks the contents of local_codecs, potentially exposing information over the network. The referenced automated assessment characterizes the impact as moderate and flags it as a remote network leak.
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.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.