Vulnerability in Linux Kernel
CVE-2015-2686
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Linux Kernel — versions 3.19, 3.19.1, 3.19.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- grsecurity.net/~spender/viro.txt
- www.securityfocus.com/bid/73286 (vdb-entry)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/
- www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.3
- twitter.com/grsecurity/statuses/579050211605102592
- twitter.com/grsecurity/statuses/579060953477701632
- twitter.com/grsecurity/statuses/579075689439059968
- www.openwall.com/lists/oss-security/2015/03/23/14 (mailing-list)
- github.com/torvalds/linux/commit/4de930efc23b92ddf88ce91c405ee645fe6e27ea
- bugzilla.redhat.com/show_bug.cgi
Frequently asked questions
- What is CVE-2015-2686?
- CVE-2015-2686 is a high-severity vulnerability in Linux Kernel, classified under CWE-264. CVSS score: 7.8/10. Published 2016-05-02.
- How severe is CVE-2015-2686?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2015-2686 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.