CVE-2017-12762: Buffer Overflow
First published: Wed Aug 09 2017(Updated: )
In /drivers/isdn/i4l/isdn_net.c: A user-controlled buffer is copied into a local buffer of constant size using strcpy without a length check which can cause a buffer overflow. This affects the Linux kernel 4.9-stable tree, 4.12-stable tree, 3.18-stable tree, and 4.4-stable tree.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=3.18<3.18.64 | |
| Linux Linux kernel | >=3.19<=4.4.80 | |
| Linux Linux kernel | >=4.5<=4.9.41 | |
| Linux Linux kernel | >=4.10<=4.12.5 | |
| Canonical Ubuntu Linux | =12.04 | |
| Canonical Ubuntu Linux | =14.04 | |
| 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/2020/02/11/1
- http://www.openwall.com/lists/oss-security/2020/02/11/2
- http://www.openwall.com/lists/oss-security/2020/02/14/4
- http://www.securityfocus.com/bid/100251
- https://patchwork.kernel.org/patch/9880041/
- https://usn.ubuntu.com/3620-1/
- https://usn.ubuntu.com/3620-2/
- https://launchpad.net/bugs/cve/CVE-2017-12762
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12762
- https://nvd.nist.gov/vuln/detail/CVE-2017-12762
- https://security-tracker.debian.org/tracker/CVE-2017-12762
- https://ubuntu.com/security/CVE-2017-12762
- https://git.kernel.org/linus/9f5af546e6acc30f075828cb58c7f09665033967
Frequently Asked Questions
What is CVE-2017-12762?
CVE-2017-12762 is a vulnerability in the Linux kernel that allows for buffer overflow by copying a user-controlled buffer into a local buffer of constant size without a length check.
Which software versions are affected by CVE-2017-12762?
CVE-2017-12762 affects the Linux kernel 4.9-stable, 4.12-stable, 3.18-stable, and 4.4-stable versions.
How severe is CVE-2017-12762?
CVE-2017-12762 is a vulnerability that can lead to a buffer overflow, which can be exploited by an attacker to execute arbitrary code or crash the system.
Is there a fix for CVE-2017-12762?
Yes, there are fixes available for CVE-2017-12762. Users should update their Linux kernel to a version that includes the fix.
Where can I find more information about CVE-2017-12762?
You can find more information about CVE-2017-12762 at the following references: [Patchwork](https://patchwork.kernel.org/patch/9880041/), [SecurityFocus](http://www.securityfocus.com/bid/100251), [Ubuntu Security Notice](https://usn.ubuntu.com/3620-1/)
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