CVE-2019-11833
Medium
Description
fs/ext4/extents.c in the Linux kernel through 5.1.2 does not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMay 15, 2019
First seenMay 15, 2019
How to fix
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GJGZIMGB72TL7OGWRMHIL43WHXFQWU4X/
- debian.org/security/2019/dsa-4465
- usn.ubuntu.com/4068-1/
- usn.ubuntu.com/4068-2/
- usn.ubuntu.com/4069-1/
- usn.ubuntu.com/4076-1/
- usn.ubuntu.com/4069-2/
- access.redhat.com/errata/RHSA-2019:2043
- access.redhat.com/errata/RHSA-2019:2029
- usn.ubuntu.com/4095-2/
- usn.ubuntu.com/4118-1/
- access.redhat.com/errata/RHSA-2019:3309
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v ≤ 5.1.2 | — |
| fedoraproject fedora | 29 | — |
| debian debian_linux | 8.0, 9.0 | — |
| canonical ubuntu_linux | 14.04, 16.04, 18.04, 19.04 | — |
| redhat enterprise_linux | 8.0 | — |
| redhat enterprise_linux_desktop | 7.0 | — |
| redhat enterprise_linux_eus | 8.1, 8.2, 8.4, 8.6 | — |
| redhat enterprise_linux_for_real_time | 7, 8.0 | — |
| redhat enterprise_linux_for_real_time_for_nfv | 7, 8.0 | — |
| redhat enterprise_linux_for_real_time_for_nfv_tus | 8.2, 8.4, 8.6 | — |
| redhat enterprise_linux_for_real_time_tus | 8.2, 8.4, 8.6 | — |
| redhat enterprise_linux_server | 7.0 | — |
| redhat enterprise_linux_server_aus | 8.2, 8.4, 8.6 | — |
| redhat enterprise_linux_server_tus | 8.2, 8.4, 8.6 | — |
| redhat enterprise_linux_workstation | 7.0 | — |
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