Impact: Moderate Public Date: 2019-06-13 CWE: CWE-476 Bugzilla: 1721967: CVE-2019-12818 kernel: null-pointer dereference in function nfc_llcp_build_tlv in net/nfc/llcp_commands.c An issue was discovered in the Linux kernel before 4.20.15. The nfc_llcp_build_tlv function in net/nfc/llcp_commands.c may return NULL. If the caller does not check for this, it will trigger a NULL pointer dereference. This will cause denial of service. This affects nfc_llcp_build_gb in net/nfc/llcp_core.c.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2019-12818 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
CVSS3 Base Score | 6.2 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Attack Vector | Local |
Attack Complexity | Low |
Privileges Required | None |
User Interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity Impact | None |
Availability Impact | High |
Platform | Package | State |
---|---|---|
Red Hat Virtualization 4 | kernel | Under investigation |
Red Hat Enterprise MRG 2 | kernel-rt | Under investigation |
Red Hat Enterprise Linux 8 | kernel | Under investigation |
Red Hat Enterprise Linux 8 | kernel-rt | Under investigation |
Red Hat Enterprise Linux 7 | kernel-alt | Under investigation |
Red Hat Enterprise Linux 7 | kernel | Under investigation |
Red Hat Enterprise Linux 7 | kernel-rt | Under investigation |
Red Hat Enterprise Linux 6 | kernel | Under investigation |
Red Hat Enterprise Linux 5 | kernel | Under investigation |