SB2017020616 - Buffer overflow in Linux kernel
Published: February 6, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017020616
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-2017-5548)
The vulnerability allows a local authenticated user to execute arbitrary code.
drivers/net/ieee802154/atusb.c in the Linux kernel 4.9.x before 4.9.6 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://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=05a974efa4bdf6e2a150e3f27dc6fcf0a9ad5655
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.6
- http://www.openwall.com/lists/oss-security/2017/01/21/3
- http://www.securityfocus.com/bid/95710
- https://bugzilla.redhat.com/show_bug.cgi?id=1416110
- https://github.com/torvalds/linux/commit/05a974efa4bdf6e2a150e3f27dc6fcf0a9ad5655