CVE-2015-2686

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Summary

CVECVE-2015-2686
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-05-02 10:59:11 UTC
Updated2026-05-06 22:30:45 UTC
Descriptionnet/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.

Risk And Classification

Primary CVSS: v3.0 7.8 HIGH from [email protected]

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-264 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7.8HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS v3.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:L/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel 3.19 All All All
Operating System Linux Linux Kernel 3.19.1 All All All
Operating System Linux Linux Kernel 3.19.2 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.3 af854a3a-2127-422b-91ae-364da2661108 www.kernel.org
JavaScript is not available. af854a3a-2127-422b-91ae-364da2661108 twitter.com
net: validate the range we feed to iov_iter_init() in sys_sendto/sys_… · torvalds/linux@4de930e · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com
grsecurity.net/~spender/viro.txt af854a3a-2127-422b-91ae-364da2661108 grsecurity.net
oss-security - CVE Request: Linux kernel: sys_sendto/sys_recvfrom does not validate the user provided ubuf pointer af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
Linux Kernel 'iov_iter_init()' Function Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
JavaScript is not available. af854a3a-2127-422b-91ae-364da2661108 twitter.com
1205242 – (CVE-2015-2686) CVE-2015-2686 kernel: sys_sendto/sys_recvfrom does not validate the user provided ubuf pointer af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
JavaScript is not available. af854a3a-2127-422b-91ae-364da2661108 twitter.com
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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