CVE-2019-11833
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.
Does this matter?
Lower severity and a low EPSS score (0.65%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.65% probability · 51th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-908
- Affected
- linux/linux kernel · fedoraproject/fedora · debian/debian linux · canonical/ubuntu linux · redhat/enterprise linux · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux for real time · redhat/enterprise linux for real time for nfv · redhat/enterprise linux for real time for nfv tus · redhat/enterprise linux for real time tus · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
- Source
- cve@mitre.org
EPSS 0.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.htmlBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.htmlBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.htmlBroken Link
- http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.htmlThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/108372Broken Link, Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:2029Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2043Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3309Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3517Third Party Advisory
- https://github.com/torvalds/linux/commit/592acbf16821288ecdc4192c47e3774a4c48bb64Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/06/msg00010.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/06/msg00011.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GJGZIMGB72TL7OGWRMHIL43WHXFQWU4X/
- https://seclists.org/bugtraq/2019/Jun/26Mailing List, 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/Third Party Advisory
- https://usn.ubuntu.com/4118-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4465Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.htmlBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.htmlBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.htmlBroken Link
- http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.htmlThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/108372Broken Link, Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:2029Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2043Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3309Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.