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Ubuntu: (Multiple Advisories) (CVE-2016-9644): Linux kernel (Qualcomm Snapdragon) vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2016-9644): Linux kernel (Qualcomm Snapdragon) vulnerabilities

Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
11/27/2016
Created
07/25/2018
Added
12/01/2016
Modified
09/12/2020

Description

The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel 4.4.22 through 4.4.28 contains extended asm statements that are incompatible with the exception table, which allows local users to obtain root access on non-SMEP platforms via a crafted application. NOTE: this vulnerability exists because of incorrect backporting of the CVE-2016-9178 patch to older kernels.

Solution(s)

  • ubuntu-upgrade-linux-image-4-4-0-1042-snapdragon
  • ubuntu-upgrade-linux-image-4-4-0-51-generic
  • ubuntu-upgrade-linux-image-4-4-0-51-generic-lpae
  • ubuntu-upgrade-linux-image-4-4-0-51-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-51-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-4-0-51-powerpc-smp
  • ubuntu-upgrade-linux-image-4-4-0-51-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-4-0-51-powerpc64-smp
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-lts-xenial
  • ubuntu-upgrade-linux-image-generic-lts-xenial
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-lts-xenial
  • 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-snapdragon
  • ubuntu-upgrade-linux-image-virtual-lts-xenial

References

  • USN-3144-1
  • USN-3144-2
  • USN-3145-1
  • USN-3145-2
  • USN-3146-1
  • USN-3146-2
  • USN-3147-1
  • USN-3160-1
  • USN-3160-2
  • USN-3161-1
  • USN-3161-2
  • USN-3161-3
  • USN-3161-4
  • USN-3162-1
  • USN-3162-2
  • USN-3187-1
  • USN-3187-2
  • USN-3188-1
  • USN-3188-2
  • USN-3290-1
  • USN-3360-1
  • USN-3360-2
  • USN-3422-1
  • USN-3422-2
  • USN-3445-1
  • USN-3445-2
  • 94545
  • CVE-2016-9644
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