CVE-2019-15918
HIGHCVSS 7.8/10EPSS 0.60%
Last modified
CVE-2019-15918 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. An issue was discovered in the Linux kernel before 5.0.10. SMB2_negotiate in fs/cifs/smb2pdu.c has an out-of-bounds read because data structures are incompletely updated after a change from smb30 to smb21.. EPSS estimates a 0.60% chance of exploitation in the next 30 days.
Description
An issue was discovered in the Linux kernel before 5.0.10. SMB2_negotiate in fs/cifs/smb2pdu.c has an out-of-bounds read because data structures are incompletely updated after a change from smb30 to smb21.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.13.5, < 4.14.166 |
| Linux | Linux Kernel | >= 4.15, < 4.19.73 |
| Linux | Linux Kernel | >= 4.20, < 5.0.10 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10Release Notes, Vendor Advisory
- https://github.com/torvalds/linux/commit/b57a55e2200ede754e4dc9cce4ba9402544b9365Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20191004-0001/Third Party Advisory
- https://usn.ubuntu.com/4162-1/Third Party Advisory
- https://usn.ubuntu.com/4162-2/Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10Release Notes, Vendor Advisory
- https://github.com/torvalds/linux/commit/b57a55e2200ede754e4dc9cce4ba9402544b9365Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20191004-0001/Third Party Advisory
- https://usn.ubuntu.com/4162-1/Third Party Advisory
- https://usn.ubuntu.com/4162-2/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-15918?
An issue was discovered in the Linux kernel before 5.0.10. SMB2_negotiate in fs/cifs/smb2pdu.c has an out-of-bounds read because data structures are incompletely updated after a change from smb30 to smb21.
How severe is CVE-2019-15918?
CVE-2019-15918 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.
How do I fix CVE-2019-15918?
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-2019-15918?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST