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.

CVSS v3 5.5 MEDIUM
CVSS v2.0 2.1 LOW

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://www.openwall.com/lists/oss-security/2021/08/17/1	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/17/2	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/24/2	Mailing List Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1992810	Issue Tracking Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10	Mailing List Patch Vendor Advisory
https://github.com/torvalds/linux/commit/4ac06a1e013cf5fdd963317ffd3b968560f33bba	Exploit Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/17/1	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/17/2	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/08/24/2	Mailing List Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1992810	Issue Tracking Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10	Mailing List Patch Vendor Advisory
https://github.com/torvalds/linux/commit/4ac06a1e013cf5fdd963317ffd3b968560f33bba	Exploit Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-08-08 20:15

Updated : 2024-11-21 06:16

NVD link : CVE-2021-38208

Mitre link : CVE-2021-38208

CVE.ORG link : CVE-2021-38208

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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