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CVE-2016-9793

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 2%

Description

The sock_setsockopt function in net/core/sock.c in the Linux kernel before 4.8.14 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option.

Affected

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

Linux Kernel· Linux
95%
3.13 ≤ v < 3.16.403.17 ≤ v < 3.18.523.19 ≤ v < 4.1.503.5 ≤ v < 3.12.694.2 ≤ v < 4.4.384.5 ≤ v < 4.8.14
Affected range stops below 3.12.69, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.16.40, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.18.52, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.1.50, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.38, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.8.14, 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=b98b0bc8c431e3ceb4b26b0dfc8db509518fb290
x_refsource_CONFIRMRelease NotesVendor Advisory
Source: [email protected]
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14
Mailing Listx_refsource_MLISTPatchThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2016/12/03/1
VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/94655
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-2017:0931
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2017:0932
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2017:0933

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-119

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