CVE-2019-12818
UnknownEPSS 5.48%
Last modified
CVE-2019-12818 is a vulnerability of currently unknown severity. 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. EPSS estimates a 5.48% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.20.15 |
References
- http://www.securityfocus.com/bid/108776Third Party Advisory, VDB Entry
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=58bdd544e2933a21a51eecf17c3f5f94038261b5Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/58bdd544e2933a21a51eecf17c3f5f94038261b5Patch, Third Party Advisory
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.15Mailing List, Release Notes, Vendor Advisory
- http://www.securityfocus.com/bid/108776Third Party Advisory, VDB Entry
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=58bdd544e2933a21a51eecf17c3f5f94038261b5Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/58bdd544e2933a21a51eecf17c3f5f94038261b5Patch, Third Party Advisory
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.15Mailing List, Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-12818?
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.
How severe is CVE-2019-12818?
Severity scoring for CVE-2019-12818 is pending analysis. The EPSS model estimates a 5.48% probability of exploitation in the next 30 days.
How do I fix CVE-2019-12818?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2019-12818?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST