CVE-2016-9793

CVSS V2 High 7.2 CVSS V3 High 7.8
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.
Overview
  • CVE ID
  • CVE-2016-9793
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2016-12-28T07:59:00
  • Last Modified Date
  • 2023-01-17T21:05:19
Weakness Enumerations
CWE URL
CWE-119 http://cwe.mitre.org/data/definitions/119.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.8.13
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.2
  • Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://github.com/torvalds/linux/commit/b98b0bc8c431e3ceb4b26b0dfc8db509518fb290 Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1402013 Issue Tracking
http://www.openwall.com/lists/oss-security/2016/12/03/1 Mailing List Patch
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14 Release Notes
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b98b0bc8c431e3ceb4b26b0dfc8db509518fb290 Patch Vendor Advisory
http://www.securityfocus.com/bid/94655
https://source.android.com/security/bulletin/2017-03-01.html
http://www.securitytracker.com/id/1037968
https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-9793
https://access.redhat.com/errata/RHSA-2017:0933
https://access.redhat.com/errata/RHSA-2017:0932
https://access.redhat.com/errata/RHSA-2017:0931
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2016-9793
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9793
History
Created Old Value New Value Data Type Notes
2022-05-10 18:51:47 Added to TrackCVE
2022-12-02 12:36:22 2016-12-28T07:59Z 2016-12-28T07:59:00 CVE Published Date updated
2022-12-02 12:36:22 2018-01-05T02:31:23 CVE Modified Date updated
2022-12-02 12:36:22 Modified Vulnerability Status updated
2023-01-12 05:06:09 Modified Undergoing Analysis Vulnerability Status updated
2023-01-17 22:07:32 2023-01-17T21:05:19 CVE Modified Date updated
2023-01-17 22:07:32 Undergoing Analysis Analyzed Vulnerability Status updated