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Debian: CVE-2015-8709: linux -- security update

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Debian: CVE-2015-8709: linux -- security update

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
01/05/2016
Created
07/25/2018
Added
02/07/2016
Modified
03/23/2020

Description

** DISPUTED ** kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor states "there is no kernel bug here."

Solution(s)

  • debian-upgrade-linux

References

  • 79899
  • DSA-3434
  • CVE-2015-8709

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