CVE-2021-38208
5.5 MEDIUMnet/nfc/llcp_sock.c in the Linux kernel before 5.12.10 allows local unprivileged users to cause a denial of service (NULL pointer derefer...
Published: 2021-08-08 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 5.5 MEDIUM
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CWE
- CWE-476
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
Description
net/nfc/llcp_sock.c in the Linux kernel before 5.12.10 allows local unprivileged users to cause a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-38208
- [Other]http://www.openwall.com/lists/oss-security/2021/08/17/1
- [Other]http://www.openwall.com/lists/oss-security/2021/08/17/2
- [Other]http://www.openwall.com/lists/oss-security/2021/08/24/2
- [Patch]https://bugzilla.redhat.com/show_bug.cgi?id=1992810
- [Patch]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10
- [Patch]https://github.com/torvalds/linux/commit/4ac06a1e013cf5fdd963317ffd3b968560f33bba
- [Other]http://www.openwall.com/lists/oss-security/2021/08/17/1
- [Other]http://www.openwall.com/lists/oss-security/2021/08/17/2
- [Other]http://www.openwall.com/lists/oss-security/2021/08/24/2
- [Patch]https://bugzilla.redhat.com/show_bug.cgi?id=1992810
- [Patch]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10
- [Patch]https://github.com/torvalds/linux/commit/4ac06a1e013cf5fdd963317ffd3b968560f33bba
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