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Ubuntu: (Multiple Advisories) (CVE-2018-1093): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2018-1093): Linux kernel vulnerabilities

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:C)
Published
04/01/2018
Created
07/25/2018
Added
06/13/2018
Modified
11/15/2024

Description

The ext4_valid_block_bitmap function in fs/ext4/balloc.c in the Linux kernel through 4.15.15 allows attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image because balloc.c and ialloc.c do not validate bitmap block numbers.

Solution(s)

  • ubuntu-upgrade-linux-image-3-13-0-157-generic
  • ubuntu-upgrade-linux-image-3-13-0-157-generic-lpae
  • ubuntu-upgrade-linux-image-3-13-0-157-lowlatency
  • ubuntu-upgrade-linux-image-3-13-0-157-powerpc-e500
  • ubuntu-upgrade-linux-image-3-13-0-157-powerpc-e500mc
  • ubuntu-upgrade-linux-image-3-13-0-157-powerpc-smp
  • ubuntu-upgrade-linux-image-3-13-0-157-powerpc64-emb
  • ubuntu-upgrade-linux-image-3-13-0-157-powerpc64-smp
  • ubuntu-upgrade-linux-image-4-15-0-1020-aws
  • ubuntu-upgrade-linux-image-4-15-0-1020-kvm
  • ubuntu-upgrade-linux-image-4-15-0-1021-raspi2
  • ubuntu-upgrade-linux-image-4-15-0-33-generic
  • ubuntu-upgrade-linux-image-4-15-0-33-generic-lpae
  • ubuntu-upgrade-linux-image-4-15-0-33-lowlatency
  • ubuntu-upgrade-linux-image-4-15-0-33-snapdragon
  • ubuntu-upgrade-linux-image-4-4-0-1023-aws
  • ubuntu-upgrade-linux-image-4-4-0-1027-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1061-aws
  • ubuntu-upgrade-linux-image-4-4-0-1091-raspi2
  • ubuntu-upgrade-linux-image-4-4-0-1094-snapdragon
  • ubuntu-upgrade-linux-image-4-4-0-128-generic
  • ubuntu-upgrade-linux-image-4-4-0-128-generic-lpae
  • ubuntu-upgrade-linux-image-4-4-0-128-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-128-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-4-0-128-powerpc-smp
  • ubuntu-upgrade-linux-image-4-4-0-128-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-4-0-128-powerpc64-smp

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