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CVE-2023-53213 is an out-of-bounds read in the Linux kernel Broadcom FullMAC Wi-Fi driver (brcmfmac). The brcmf_get_assoc_ies() function passes association-information request or response lengths to kmemdup() without first ensuring they are within the WL_EXTRA_BUF_MAX backing-buffer size. A USB device can provide an oversized length through a USB Request Block, causing kmemdup() to read beyond the allocated slab buffer. The upstream fix validates both association-information request and response lengths before copying.
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No public exploit code observed for this vulnerability.
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11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A slab out-of-bounds read in the Linux kernel brcmfmac Wi-Fi driver's association-information-element handling.
Linux kernel brcmfmac Wi-Fi driver slab out-of-bounds read in brcmf_get_assoc_ies().
Linux kernel brcmfmac Wi-Fi driver slab out-of-bounds read in brcmf_get_assoc_ies().
A slab out-of-bounds read in the Linux kernel brcmfmac Wi-Fi driver function brcmf_get_assoc_ies().
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.