CVE-2018-8822: Buffer Overflow
First published: Tue Mar 20 2018(Updated: )
Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in the Linux kernel through 4.15.11, and in drivers/staging/ncpfs/ncplib_kernel.c in the Linux kernel 4.16-rc through 4.16-rc6, could be exploited by malicious NCPFS servers to crash the kernel or execute code.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <=4.15.11 | |
| Linux Linux kernel | =4.16-rc | |
| Linux Linux kernel | =4.16-rc1 | |
| Linux Linux kernel | =4.16-rc2 | |
| Linux Linux kernel | =4.16-rc3 | |
| Linux Linux kernel | =4.16-rc4 | |
| Linux Linux kernel | =4.16-rc5 | |
| Linux Linux kernel | =4.16-rc6 | |
| Canonical Ubuntu Linux | =12.04 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =17.10 | |
| Debian Debian Linux | =7.0 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Linux Linux kernel | >=2.6.12<3.2.102 | |
| Linux Linux kernel | >=3.3<3.16.57 | |
| Linux Linux kernel | >=3.17<3.18.103 | |
| Linux Linux kernel | >=3.19<4.1.52 | |
| Linux Linux kernel | >=4.2<4.4.125 | |
| Linux Linux kernel | >=4.5<4.9.91 | |
| Linux Linux kernel | >=4.10<4.14.31 | |
| Linux Linux kernel | >=4.15<4.15.14 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2022/12/27/3
- http://www.securityfocus.com/bid/103476
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
- https://usn.ubuntu.com/3653-1/
- https://usn.ubuntu.com/3653-2/
- https://usn.ubuntu.com/3654-1/
- https://usn.ubuntu.com/3654-2/
- https://usn.ubuntu.com/3655-1/
- https://usn.ubuntu.com/3655-2/
- https://usn.ubuntu.com/3656-1/
- https://usn.ubuntu.com/3657-1/
- https://www.debian.org/security/2018/dsa-4187
- https://www.debian.org/security/2018/dsa-4188
- https://www.mail-archive.com/netdev@vger.kernel.org/msg223373.html
- https://launchpad.net/bugs/cve/CVE-2018-8822
- https://www.mail-archive.com/netdev%40vger.kernel.org/msg223373.html
- https://security-tracker.debian.org/tracker/CVE-2018-8822
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8822
- https://nvd.nist.gov/vuln/detail/CVE-2018-8822
- https://ubuntu.com/security/CVE-2018-8822
Frequently Asked Questions
What is CVE-2018-8822?
CVE-2018-8822 is a vulnerability in the Linux kernel that allows malicious NCPFS servers to crash the kernel or execute code.
Which versions of Linux kernel are affected by CVE-2018-8822?
CVE-2018-8822 affects Linux kernel versions up to 4.15.11 and versions 4.16-rc through 4.16-rc6.
How can CVE-2018-8822 be exploited?
CVE-2018-8822 can be exploited by malicious NCPFS servers to crash the kernel or execute code.
What is the severity of CVE-2018-8822?
The severity of CVE-2018-8822 is not specified.
How can I fix CVE-2018-8822?
To fix CVE-2018-8822, update your Linux kernel to version 4.16 or later.
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