CVE-2015-8962: Double Free
First published: Mon Nov 07 2016(Updated: )
Double free vulnerability in the sg_common_write function in drivers/scsi/sg.c in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (memory corruption and system crash) by detaching a device during an SG_IO ioctl call.
Credit: security@android.com security@android.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <3.2.85 | |
| Linux Linux kernel | >=3.3<3.10.107 | |
| Linux Linux kernel | >=3.12<3.12.70 | |
| Linux Linux kernel | >=3.13<3.16.40 | |
| Linux Linux kernel | >=3.17<3.18.54 | |
| Linux Linux kernel | >=3.19<4.4 | |
| Google Android | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.7-1 6.11.9-1 |
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Reference Links
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3951a3709ff50990bf3e188c27d346792103432
- http://www.securityfocus.com/bid/94187
- https://github.com/torvalds/linux/commit/f3951a3709ff50990bf3e188c27d346792103432
- https://source.android.com/security/bulletin/2016-11-01.html
- https://launchpad.net/bugs/cve/CVE-2015-8962
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3951a3709ff50990bf3e188c27d346792103432
- https://source.android.com/docs/security/bulletin/2016-11-01 (Advisory)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8962
- https://nvd.nist.gov/vuln/detail/CVE-2015-8962
- https://security-tracker.debian.org/tracker/CVE-2015-8962
- https://ubuntu.com/security/CVE-2015-8962
- https://git.kernel.org/linus/f3951a3709ff50990bf3e188c27d346792103432
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2015-8962.
What is the title of this vulnerability?
The title of this vulnerability is 'Double free vulnerability in the sg_common_write function in drivers/scsi/sg.c in the Linux kernel'.
What is the description of this vulnerability?
The description of this vulnerability is that it allows local users to gain privileges or cause a denial of service by detaching a device during an SG_IO ioctl call.
What is the severity of this vulnerability?
The severity of this vulnerability is critical.
How can I fix this vulnerability?
To fix this vulnerability, you should update your Linux kernel to version 4.4 or later.
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