CVE-2020-11609: Null Pointer Dereference
First published: Tue Apr 07 2020(Updated: )
An issue was discovered in the stv06xx subsystem in the Linux kernel before 5.6.1. drivers/media/usb/gspca/stv06xx/stv06xx.c and drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c mishandle invalid descriptors, as demonstrated by a NULL pointer dereference, aka CID-485b06aadb93.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.13-1 | |
| Linux Kernel | <5.6.1 | |
| Ubuntu | =16.04 | |
| Ubuntu | =18.04 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.1
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=485b06aadb933190f4bc44e006076bc27a23f205
- https://github.com/torvalds/linux/commit/485b06aadb933190f4bc44e006076bc27a23f205
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- https://security.netapp.com/advisory/ntap-20200430-0004/
- https://usn.ubuntu.com/4345-1/
- https://usn.ubuntu.com/4364-1/
- https://usn.ubuntu.com/4368-1/
- https://usn.ubuntu.com/4369-1/
- https://www.debian.org/security/2020/dsa-4698
- https://launchpad.net/bugs/cve/CVE-2020-11609
- https://git.kernel.org/linus/485b06aadb933190f4bc44e006076bc27a23f205
- https://security-tracker.debian.org/tracker/CVE-2020-11609
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11609
- https://nvd.nist.gov/vuln/detail/CVE-2020-11609
- https://ubuntu.com/security/CVE-2020-11609
Frequently Asked Questions
What is the severity of CVE-2020-11609?
CVE-2020-11609 is a medium-severity vulnerability due to possible NULL pointer dereference.
How do I fix CVE-2020-11609?
To fix CVE-2020-11609, update the Linux kernel to version 5.6.1 or higher.
Which systems are affected by CVE-2020-11609?
CVE-2020-11609 affects Linux kernel versions before 5.6.1 and Ubuntu Linux versions 16.04 and 18.04.
What type of vulnerability is CVE-2020-11609?
CVE-2020-11609 is a mishandling of invalid descriptors in the stv06xx subsystem.
How was CVE-2020-11609 discovered?
CVE-2020-11609 was discovered due to specific issues in the drivers/media/usb/gspca/stv06xx code.
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