CVE-2015-2686

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.

Category

7.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.04%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://grsecurity.net/~spender/viro.txt
http://www.securityfocus.com/bid/73286 vdb entry
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4de930efc23b92ddf88ce91c405ee645fe6e27ea
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.3
http://twitter.com/grsecurity/statuses/579050211605102592
http://twitter.com/grsecurity/statuses/579060953477701632
http://twitter.com/grsecurity/statuses/579075689439059968
http://www.openwall.com/lists/oss-security/2015/03/23/14 mailing list
https://github.com/torvalds/linux/commit/4de930efc23b92ddf88ce91c405ee645fe6e27ea
https://bugzilla.redhat.com/show_bug.cgi?id=1205242

Frequently Asked Questions

What is the severity of CVE-2015-2686?
CVE-2015-2686 has been scored as a high severity vulnerability.
How to fix CVE-2015-2686?
To fix CVE-2015-2686, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-2686 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-2686 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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