Vulnerability Description
net/socket.c in the Linux kernel 3.19 before 3.19.3 does not validate certain range data for (1) sendto and (2) recvfrom system calls, which allows local users to gain privileges by leveraging a subsystem that uses the copy_from_iter function in the iov_iter interface, as demonstrated by the Bluetooth subsystem.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | 3.19 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4de930
- http://grsecurity.net/~spender/viro.txt
- http://twitter.com/grsecurity/statuses/579050211605102592
- http://twitter.com/grsecurity/statuses/579060953477701632
- http://twitter.com/grsecurity/statuses/579075689439059968
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.3
- http://www.openwall.com/lists/oss-security/2015/03/23/14
- http://www.securityfocus.com/bid/73286
- https://bugzilla.redhat.com/show_bug.cgi?id=1205242
- https://github.com/torvalds/linux/commit/4de930efc23b92ddf88ce91c405ee645fe6e27e
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4de930
- http://grsecurity.net/~spender/viro.txt
- http://twitter.com/grsecurity/statuses/579050211605102592
- http://twitter.com/grsecurity/statuses/579060953477701632
- http://twitter.com/grsecurity/statuses/579075689439059968
FAQ
What is CVE-2015-2686?
CVE-2015-2686 is a vulnerability with a CVSS score of 7.8 (HIGH). net/socket.c in the Linux kernel 3.19 before 3.19.3 does not validate certain range data for (1) sendto and (2) recvfrom system calls, which allows local users to gain privileges by leveraging a subsy...
How severe is CVE-2015-2686?
CVE-2015-2686 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-2686?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.