CVE-2018-20961: Double Free
First published: Wed Aug 07 2019(Updated: )
In the Linux kernel before 4.16.4, a double free vulnerability in the f_midi_set_alt function of drivers/usb/gadget/function/f_midi.c in the f_midi driver may allow attackers to cause a denial of service or possibly have unspecified other impact.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=4.4<4.4.190 | |
| Linux Linux kernel | >=4.5<4.9.96 | |
| Linux Linux kernel | >=4.10<4.14.36 | |
| Linux Linux kernel | >=4.15.0<4.16.4 | |
| Google Android | ||
| 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://packetstormsecurity.com/files/154228/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.4
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7fafcfdf6377b18b2a726ea554d6e593ba44349f
- https://github.com/torvalds/linux/commit/7fafcfdf6377b18b2a726ea554d6e593ba44349f
- https://seclists.org/bugtraq/2019/Aug/48
- https://security.netapp.com/advisory/ntap-20190905-0002/
- https://support.f5.com/csp/article/K58502654
- https://support.f5.com/csp/article/K58502654?utm_source=f5support&utm_medium=RSS
- https://usn.ubuntu.com/4145-1/
- https://support.f5.com/csp/article/K58502654?utm_source=f5support&amp;utm_medium=RSS
- https://launchpad.net/bugs/cve/CVE-2018-20961
- https://support.f5.com/csp/article/K58502654?utm_source=f5support&%3Butm_medium=RSS
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7fafcfdf6377b18b2a726ea554d6e593ba44349f
- https://source.android.com/docs/security/bulletin/2019-12-01 (Advisory)
- https://git.kernel.org/linus/7fafcfdf6377b18b2a726ea554d6e593ba44349f
- https://security-tracker.debian.org/tracker/CVE-2018-20961
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20961
- https://nvd.nist.gov/vuln/detail/CVE-2018-20961
- https://ubuntu.com/security/CVE-2018-20961
Frequently Asked Questions
What is CVE-2018-20961?
CVE-2018-20961 is a double free vulnerability in the Linux kernel before version 4.16.4.
How does CVE-2018-20961 affect Linux?
CVE-2018-20961 may allow attackers to cause a denial of service or possibly have other unspecified impacts on the Linux kernel before version 4.16.4.
Which versions of Linux are affected by CVE-2018-20961?
CVE-2018-20961 affects various versions of the Linux kernel including 4.15.0-1053.57, 4.17~, and 4.4.0-1127.135.
How can I fix the CVE-2018-20961 vulnerability?
To fix the CVE-2018-20961 vulnerability, update your Linux kernel to version 4.16.4 or later.
Where can I find more information about CVE-2018-20961?
You can find more information about CVE-2018-20961 in the Linux kernel ChangeLog-4.16.4, the git.kernel.org commit, and the GitHub commit.
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