SB2017042309 - Buffer overflow in Linux kernel
Published: April 23, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017042309
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) Buffer overflow (CVE-ID: CVE-2017-8068)
The vulnerability allows a local authenticated user to execute arbitrary code.
drivers/net/usb/pegasus.c in the Linux kernel 4.9.x before 4.9.11 interacts incorrectly with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash or memory corruption) or possibly have unspecified other impact by leveraging use of more than one virtual page for a DMA scatterlist.
Remediation
Install update from vendor's website.
References
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11
- http://www.openwall.com/lists/oss-security/2017/04/16/4
- http://www.securityfocus.com/bid/98000
- http://www.securityfocus.com/bid/98008
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5593523f968bc86d42a035c6df47d5e0979b5ace
- https://github.com/torvalds/linux/commit/5593523f968bc86d42a035c6df47d5e0979b5ace