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CVE-2023-53305 is a use-after-free vulnerability in the Linux kernel Bluetooth Logical Link Control and Adaptation Protocol (L2CAP) subsystem. The defect is in the LE command-reject handling path, specifically l2cap_le_command_rej, where object lifetime handling can permit use of freed memory.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
15 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A use-after-free flaw in the Linux kernel Bluetooth L2CAP subsystem.
Linux kernel Bluetooth L2CAP use-after-free vulnerability.
Linux kernel Bluetooth L2CAP use-after-free vulnerability.
A use-after-free vulnerability in the Linux kernel Bluetooth L2CAP subsystem.
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.