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CVE-2016-9806

HIGH
7.8
CVSS Score
Published: December 28, 2016 at 07:42 AM UTC
Updated: June 17, 2026 at 12:56 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.4%

Description

Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that makes sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
3.12 ≤ v < 3.12.623.13 ≤ v < 3.14.733.15 ≤ v < 3.16.373.17 ≤ v < 3.18.373.19 ≤ v < 4.1.284.2 ≤ v < 4.4.144.5 ≤ v < 4.6.3
Affected range stops below 3.12.62, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.14.73, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.16.37, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.18.37, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.1.28, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.14, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.6.3, so it looks safe — our inference, not a vendor statement

References (12)

x_refsource_CONFIRMPatchVendor Advisory
Source: [email protected]
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5520
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://lists.openwall.net/netdev/2016/05/15/69
x_refsource_CONFIRMRelease NotesVendor Advisory
Source: [email protected]
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3
Mailing Listx_refsource_MLISTPatchThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2016/12/03/4
VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/94653
VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1037968
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2017:1842
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2017:2077

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-362CWE-415

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