Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.20.15 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
- http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LS
- http://www.securityfocus.com/bid/108776Third Party AdvisoryVDB Entry
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=58bddMailing ListPatchVendor Advisory
- https://github.com/torvalds/linux/commit/58bdd544e2933a21a51eecf17c3f5f94038261bPatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20190710-0002/
- https://support.f5.com/csp/article/K91444306
- https://usn.ubuntu.com/4094-1/
- https://usn.ubuntu.com/4118-1/
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.15Mailing ListRelease NotesVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
FAQ
What is CVE-2019-12818?
CVE-2019-12818 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 po...
How severe is CVE-2019-12818?
CVE-2019-12818 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-12818?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.