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Ubuntu: (Multiple Advisories) (CVE-2016-4557): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2016-4557): Linux kernel vulnerabilities

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
05/06/2016
Created
07/25/2018
Added
05/18/2016
Modified
11/08/2024

Description

The replace_map_fd_with_map_ptr function in kernel/bpf/verifier.c in the Linux kernel before 4.5.5 does not properly maintain an fd data structure, which allows local users to gain privileges or cause a denial of service (use-after-free) via crafted BPF instructions that reference an incorrect file descriptor.

Solution(s)

  • ubuntu-upgrade-linux-image-4-4-0-1010-raspi2
  • ubuntu-upgrade-linux-image-4-4-0-1013-snapdragon
  • ubuntu-upgrade-linux-image-4-4-0-22-generic
  • ubuntu-upgrade-linux-image-4-4-0-22-generic-lpae
  • ubuntu-upgrade-linux-image-4-4-0-22-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-22-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-4-0-22-powerpc-smp
  • ubuntu-upgrade-linux-image-4-4-0-22-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-4-0-22-powerpc64-smp

References

  • https://attackerkb.com/topics/cve-2016-4557
  • CVE - 2016-4557
  • CVE-2016-4557
  • USN-2965-1
  • USN-2965-2
  • USN-2965-3
  • USN-2965-4
  • USN-2968-1
  • USN-2968-2
  • USN-2969-1
  • USN-2970-1
  • USN-2971-1
  • USN-2971-2
  • USN-2971-3
  • USN-2989-1
  • USN-2996-1
  • USN-2997-1
  • USN-2998-1
  • USN-3000-1
  • USN-3001-1
  • USN-3002-1
  • USN-3003-1
  • USN-3004-1
  • USN-3021-1
  • USN-3021-2
View more

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