linux: A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux k...
CVE-2021-4202 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-4202, released March 25, 2022. It is not reported as exploited. Patch Radar priority: High.
A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.15.5-1 | DEBIAN-CVE-2021-4202 | Mar 25, 2022 |
| linux · Debian 13.5 (trixie) | 5.15.5-1 | DEBIAN-CVE-2021-4202 | Mar 25, 2022 |
| linux · Debian 14 | 5.15.5-1 | DEBIAN-CVE-2021-4202 | Mar 25, 2022 |
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