CVE-2019-15918
First published: Wed Sep 04 2019(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | >=4.13.5<4.14.166 | |
| Linux kernel | >=4.15<4.19.73 | |
| Linux kernel | >=4.20<5.0.10 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =18.04 | |
| Linux Kernel | >=4.13.5<4.14.166 | |
| Linux Kernel | >=4.15<4.19.73 | |
| Linux Kernel | >=4.20<5.0.10 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| Ubuntu | =18.04 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.17-1 |
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Reference Links
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10
- https://github.com/torvalds/linux/commit/b57a55e2200ede754e4dc9cce4ba9402544b9365
- https://security.netapp.com/advisory/ntap-20191004-0001/
- https://usn.ubuntu.com/4162-1/
- https://usn.ubuntu.com/4162-2/
- https://launchpad.net/bugs/cve/CVE-2019-15918
- https://git.kernel.org/linus/b57a55e2200ede754e4dc9cce4ba9402544b9365
- https://security-tracker.debian.org/tracker/CVE-2019-15918
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15918
- https://nvd.nist.gov/vuln/detail/CVE-2019-15918
- https://ubuntu.com/security/CVE-2019-15918
Frequently Asked Questions
What is the severity of CVE-2019-15918?
CVE-2019-15918 has been classified as a moderate severity vulnerability due to its potential for out-of-bounds read issues.
How do I fix CVE-2019-15918?
To fix CVE-2019-15918, upgrade your Linux kernel to version 5.0.10 or higher.
Which versions of the Linux kernel are affected by CVE-2019-15918?
CVE-2019-15918 affects Linux kernels prior to version 5.0.10, specifically those between versions 4.13.5 and 4.19.73.
Is Ubuntu Linux affected by CVE-2019-15918?
Yes, Ubuntu Linux versions 14.04, 16.04, and 18.04 are affected by CVE-2019-15918.
What type of vulnerability is CVE-2019-15918?
CVE-2019-15918 is an out-of-bounds read vulnerability that affects the SMB2 negotiation process in the Linux kernel.
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