CVE-2019-11833

moderate-risk
Published 2019-05-15

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.

Do I need to act?

-
0.02% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (20)

Affected Vendors

Debian Redhat Linux Canonical Fedoraproject

References (44)

Broken Link http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html
Broken Link http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
Broken Link http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
Third Party Advisory http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LS...
Broken Link http://www.securityfocus.com/bid/108372
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:2029
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:2043
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:3309
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:3517
Patch https://github.com/torvalds/linux/commit/592acbf16821288ecdc4192c47e3774a4c48bb6...
Mailing List https://lists.debian.org/debian-lts-announce/2019/06/msg00010.html
Mailing List https://lists.debian.org/debian-lts-announce/2019/06/msg00011.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Mailing List https://seclists.org/bugtraq/2019/Jun/26
Third Party Advisory https://usn.ubuntu.com/4068-1/
Third Party Advisory https://usn.ubuntu.com/4068-2/
Third Party Advisory https://usn.ubuntu.com/4069-1/
Third Party Advisory https://usn.ubuntu.com/4069-2/
Third Party Advisory https://usn.ubuntu.com/4076-1/
Third Party Advisory https://usn.ubuntu.com/4095-2/
and 24 more references
41
/ 100
moderate-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 23/34 · High