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.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | May 2, 2018 | Apr 1, 2018 |
| Huawei Euleros 2_0_sp2 | — | Upgrade kernel-debuginfoUpgrade kernel-debug-develUpgrade perfUpgrade kernel-headersUpgrade python-perfUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-debug | Jun 27, 2019 | Apr 2, 2018 |
| Huawei Euleros 2_0_sp3 | — | Upgrade kernel-develUpgrade perfUpgrade kernelUpgrade kernel-tools-libsUpgrade kernel-debuginfoUpgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernel-tools | Sep 25, 2019 | Apr 2, 2018 |
| Oracle_linux | — | Upgrade kernel-uek | Apr 27, 2018 | Mar 22, 2018 |
| Suse | — | Upgrade kernel-ec2-extraUpgrade kernel-defaultUpgrade kernel-ec2-develUpgrade kernel-ec2 | Jun 21, 2018 | Apr 1, 2018 |
| Ubuntu | — | Upgrade linux-image-4.15.0-1022-azureUpgrade linux-image-snapdragonUpgrade linux-image-4.4.0-1023-awsUpgrade linux-image-lowlatency-lts-xenialUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-azure-edgeUpgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-4.4.0-128-powerpc64-smpUpgrade linux-image-3.13.0-157-genericUpgrade linux-image-4.4.0-128-powerpc-e500mcUpgrade linux-image-4.4.0-128-genericUpgrade linux-image-powerpc-e500mc-lts-xenialUpgrade linux-image-oemUpgrade linux-image-powerpc-e500mcUpgrade linux-image-4.15.0-33-lowlatencyUpgrade linux-image-4.4.0-1061-awsUpgrade linux-image-4.15.0-1017-oemUpgrade linux-image-3.13.0-157-powerpc64-embUpgrade linux-image-3.13.0-157-powerpc64-smpUpgrade linux-image-powerpc64-smpUpgrade linux-image-gkeUpgrade linux-image-powerpc64-embUpgrade linux-image-kvmUpgrade linux-image-4.4.0-128-powerpc-smpUpgrade linux-image-awsUpgrade linux-image-gcpUpgrade linux-image-powerpc64-emb-lts-xenialUpgrade linux-image-4.4.0-128-lowlatencyUpgrade linux-image-4.15.0-1020-awsUpgrade linux-image-4.4.0-1094-snapdragonUpgrade linux-image-4.4.0-128-generic-lpaeUpgrade linux-image-raspi2Upgrade linux-image-3.13.0-157-generic-lpaeUpgrade linux-image-3.13.0-157-powerpc-e500mcUpgrade linux-image-4.15.0-33-generic-lpaeUpgrade linux-image-4.15.0-1018-gcpUpgrade linux-image-powerpc-smpUpgrade linux-image-3.13.0-157-powerpc-e500Upgrade linux-image-4.4.0-1091-raspi2Upgrade linux-image-generic-lpaeUpgrade linux-image-4.4.0-1027-kvmUpgrade linux-image-powerpc-smp-lts-xenialUpgrade linux-image-powerpc-e500Upgrade linux-image-4.4.0-128-powerpc64-embUpgrade linux-image-3.13.0-157-powerpc-smpUpgrade linux-image-powerpc64-smp-lts-xenialUpgrade linux-image-4.15.0-1020-kvmUpgrade linux-image-generic-lpae-hwe-16.04Upgrade linux-image-lowlatencyUpgrade linux-image-3.13.0-157-lowlatencyUpgrade linux-image-generic-lts-xenialUpgrade linux-image-4.15.0-33-snapdragonUpgrade linux-image-4.15.0-33-genericUpgrade linux-image-genericUpgrade linux-image-azureUpgrade linux-image-generic-lpae-lts-xenialUpgrade linux-image-4.15.0-1021-raspi2 | Jun 13, 2018 | Apr 1, 2018 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Apr 2, 2018 |
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