CVE-2017-7979

CVSS V2 High 7.2 CVSS V3 High 7.8
Description
The cookie feature in the packet action API implementation in net/sched/act_api.c in the Linux kernel 4.11.x through 4.11-rc7 mishandles the tb nlattr array, which allows local users to cause a denial of service (uninitialized memory access and refcount underflow, and system hang or crash) or possibly have unspecified other impact via "tc filter add" commands in certain contexts. NOTE: this does not affect stable kernels, such as 4.10.x, from kernel.org.
Overview
  • CVE ID
  • CVE-2017-7979
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2017-04-19T23:59:00
  • Last Modified Date
  • 2017-04-26T01:59:10
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:4.11:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:4.11:rc2:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:4.11:rc3:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:4.11:rc4:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:4.11:rc5:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:4.11:rc6:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:4.11:rc7:*:*:*:*:*:* 1 OR
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://bugzilla.proxmox.com/show_bug.cgi?id=1351 Issue Tracking Patch
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1682368 Issue Tracking Patch
http://marc.info/?l=linux-netdev&m=149251041420195 Mailing List Patch Third Party Advisory
http://marc.info/?l=linux-netdev&m=149251041420194 Mailing List Patch Third Party Advisory
http://marc.info/?l=linux-netdev&m=149200746116366 Mailing List Patch Third Party Advisory
http://marc.info/?l=linux-netdev&m=149200746116365 Mailing List Patch Third Party Advisory
http://marc.info/?l=linux-netdev&m=149200742616349 Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/97969
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2017-7979
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7979
History
Created Old Value New Value Data Type Notes
2022-05-10 09:44:12 Added to TrackCVE
2022-12-02 16:02:16 2017-04-19T23:59Z 2017-04-19T23:59:00 CVE Published Date updated
2022-12-02 16:02:16 2017-04-26T01:59:10 CVE Modified Date updated
2022-12-02 16:02:16 Modified Vulnerability Status updated