CVE-2016-9793

HIGH

Linux Kernel < 3.12.69 - Memory Corruption

Title source: rule

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.

Exploits (3)

exploitdb WORKING POC

by Andrey Konovalov · clocallinux

https://www.exploit-db.com/exploits/41995

View Code ZIP pw:eip

github WORKING POC 8 stars

by codecat007 · cpoc

https://github.com/codecat007/cvehub/tree/main/android/kernel/EXP-CVE-2016-9793

View Code ZIP pw:eip

gitlab

by os-exploit · poc

https://gitlab.com/penetration-test-learn/10vuln/os-exploit/bcoles-kernel-exploits

References (12)

[Patch, Vendor Advisory] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b98b0bc8c431e3ceb4b26b0dfc8db509518fb290

[Release Notes, Vendor Advisory] http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14

[Mailing List, Patch, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/12/03/1

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/94655

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1037968

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:0931

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:0932

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:0933

[Issue Tracking, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=1402013

[Patch, Vendor Advisory] https://github.com/torvalds/linux/commit/b98b0bc8c431e3ceb4b26b0dfc8db509518fb290

[Third Party Advisory] https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-9793

[Third Party Advisory] https://source.android.com/security/bulletin/2017-03-01.html

Scores

CVSS v3 7.8

EPSS 0.0276

EPSS Percentile 86.1%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-119

Status published

Products (1)

linux/linux_kernel 3.5 - 3.12.69

Published Dec 28, 2016

Tracked Since Feb 18, 2026