SB2017020668 - Integer overflow in Linux kernel drm vc4 driver
Published: February 6, 2017
Security Bulletin ID
SB2017020668
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Integer overflow (CVE-ID: CVE-2017-5576)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer overflow within the vc4_get_bcl() function in drivers/gpu/drm/vc4/vc4_gem.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.
References
- https://lkml.org/lkml/2017/1/17/761
- https://github.com/torvalds/linux/commit/0f2ff82e11c86c05d051cae32b58226392d33bbf
- https://bugzilla.redhat.com/show_bug.cgi?id=1416436
- http://www.openwall.com/lists/oss-security/2017/01/21/7
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.7
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0f2ff82e11c86c05d051cae32b58226392d33bbf
- http://www.securityfocus.com/bid/95767