VulnerabilityModified
CVE-2021-38208
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.
MEDIUM 5.5EPSS 0.49%
Does this matter?
Lower severity and a low EPSS score (0.49%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.49% probability · 41th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2021/08/17/1Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/17/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/24/2Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1992810Issue Tracking, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/4ac06a1e013cf5fdd963317ffd3b968560f33bbaExploit, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/17/1Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/17/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/24/2Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1992810Issue Tracking, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/4ac06a1e013cf5fdd963317ffd3b968560f33bbaExploit, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.