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Ubuntu: (Multiple Advisories) (CVE-2017-17807): Linux kernel (Azure) vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2017-17807): Linux kernel (Azure) vulnerabilities

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:N)
Published
12/20/2017
Created
07/25/2018
Added
04/25/2018
Modified
08/25/2021

Description

The KEYS subsystem in the Linux kernel before 4.14.6 omitted an access-control check when adding a key to the current task's "default request-key keyring" via the request_key() system call, allowing a local user to use a sequence of crafted system calls to add keys to a keyring with only Search permission (not Write permission) to that keyring, related to construct_get_dest_keyring() in security/keys/request_key.c.

Solution(s)

  • ubuntu-upgrade-linux-image-3-13-0-144-generic
  • ubuntu-upgrade-linux-image-3-13-0-144-generic-lpae
  • ubuntu-upgrade-linux-image-3-13-0-144-lowlatency
  • ubuntu-upgrade-linux-image-3-13-0-144-powerpc-e500
  • ubuntu-upgrade-linux-image-3-13-0-144-powerpc-e500mc
  • ubuntu-upgrade-linux-image-3-13-0-144-powerpc-smp
  • ubuntu-upgrade-linux-image-3-13-0-144-powerpc64-emb
  • ubuntu-upgrade-linux-image-3-13-0-144-powerpc64-smp
  • ubuntu-upgrade-linux-image-4-13-0-1012-gcp
  • ubuntu-upgrade-linux-image-4-13-0-1014-azure
  • ubuntu-upgrade-linux-image-4-13-0-1016-raspi2
  • ubuntu-upgrade-linux-image-4-13-0-1022-oem
  • ubuntu-upgrade-linux-image-4-13-0-38-generic
  • ubuntu-upgrade-linux-image-4-13-0-38-generic-lpae
  • ubuntu-upgrade-linux-image-4-13-0-38-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-1016-aws
  • ubuntu-upgrade-linux-image-4-4-0-1020-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1054-aws
  • ubuntu-upgrade-linux-image-4-4-0-1086-raspi2
  • ubuntu-upgrade-linux-image-4-4-0-1088-snapdragon
  • ubuntu-upgrade-linux-image-4-4-0-119-generic
  • ubuntu-upgrade-linux-image-4-4-0-119-generic-lpae
  • ubuntu-upgrade-linux-image-4-4-0-119-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-119-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-4-0-119-powerpc-smp
  • ubuntu-upgrade-linux-image-4-4-0-119-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-4-0-119-powerpc64-smp
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-lpae-lts-trusty
  • ubuntu-upgrade-linux-image-generic-lpae-lts-xenial
  • ubuntu-upgrade-linux-image-generic-lts-trusty
  • ubuntu-upgrade-linux-image-generic-lts-xenial
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-lowlatency-lts-xenial
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-powerpc-e500
  • ubuntu-upgrade-linux-image-powerpc-e500mc
  • ubuntu-upgrade-linux-image-powerpc-e500mc-lts-xenial
  • ubuntu-upgrade-linux-image-powerpc-smp
  • ubuntu-upgrade-linux-image-powerpc-smp-lts-xenial
  • ubuntu-upgrade-linux-image-powerpc64-emb
  • ubuntu-upgrade-linux-image-powerpc64-emb-lts-xenial
  • ubuntu-upgrade-linux-image-powerpc64-smp
  • ubuntu-upgrade-linux-image-powerpc64-smp-lts-xenial
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-snapdragon

References

  • USN-3583-1
  • USN-3583-2
  • USN-3617-1
  • USN-3617-2
  • USN-3617-3
  • USN-3619-1
  • USN-3619-2
  • USN-3620-1
  • USN-3620-2
  • USN-3630-1
  • USN-3630-2
  • USN-3632-1
  • DSA-4073
  • DSA-4082
  • CVE-2017-17807
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