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Ubuntu: USN-3314-1 (CVE-2017-7979): Linux kernel vulnerabilities

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Ubuntu: USN-3314-1 (CVE-2017-7979): Linux kernel vulnerabilities

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
04/19/2017
Created
07/25/2018
Added
06/08/2017
Modified
09/12/2020

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.

Solution(s)

  • ubuntu-upgrade-linux-image-4-10-0-1006-raspi2
  • ubuntu-upgrade-linux-image-4-10-0-22-generic
  • ubuntu-upgrade-linux-image-4-10-0-22-generic-lpae
  • ubuntu-upgrade-linux-image-4-10-0-22-lowlatency
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-raspi2

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