The ext4_xattr_check_entries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service (get_acl NULL pointer dereference and system crash) via a crafted ext4 image.
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 |
|---|---|---|---|---|
| Centos_linux | — | centos-upgrade-kernel | Aug 28, 2019 | Apr 2, 2018 |
| Debian | debian-upgrade-linux | Jul 30, 2024 | Apr 2, 2018 | |
| Redhat_linux | — | redhat-upgrade-kernel | Oct 31, 2018 | Apr 1, 2018 |
| Ubuntu | ubuntu-upgrade-linux-image-4-15-0-1010-gcpubuntu-upgrade-linux-image-4-15-0-1011-awsubuntu-upgrade-linux-image-4-15-0-1012-kvmubuntu-upgrade-linux-image-4-15-0-1013-raspi2ubuntu-upgrade-linux-image-4-15-0-1014-azureubuntu-upgrade-linux-image-4-15-0-24-genericubuntu-upgrade-linux-image-4-15-0-24-generic-lpaeubuntu-upgrade-linux-image-4-15-0-24-lowlatencyubuntu-upgrade-linux-image-4-15-0-24-snapdragonubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-16-04ubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragon | Jul 4, 2018 | Apr 1, 2018 |
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