CVE-2023-52502High· 8.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn() Sili Luo reported a race in nfc_llcp_sock_get(), leading to UAF. Getting a reference on the sock…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 4.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
0.2% → 0.2%
In the Linux kernel, the following vulnerability has been resolved:
net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()
Sili Luo reported a race in nfc_llcp_sock_get(), leading to UAF.
Getting a reference on the socket found in a lookup while holding a lock should happen before releasing the lock.
nfc_llcp_sock_get_sn() has a similar problem.
Finally nfc_llcp_recv_snl() needs to make sure the socket found by nfc_llcp_sock_from_sn() does not disappear.
linux_kernel >= 3.6, < 4.19.297linux_kernel >= 4.20, < 5.4.259linux_kernel >= 5.5, < 5.10.199linux_kernel >= 5.11, < 5.15.136linux_kernel >= 5.16, < 6.1.59linux_kernel >= 6.2, < 6.5.8linux_kernel = 6.6Upgrade past the affected range:
linux_kernel 6.5.8Connected by shared product, vendor, weakness, or advisory.
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