Missing Initialization of a Variable Affecting kernel-tools package, versions <0:4.18.0-147.el8
Threat Intelligence
EPSS
0.04% (12th
percentile)
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Test your applications- Snyk ID SNYK-RHEL8-KERNELTOOLS-3541880
- published 26 Jul 2021
- disclosed 11 May 2019
How to fix?
Upgrade RHEL:8 kernel-tools to version 0:4.18.0-147.el8 or higher.
This issue was patched in RHSA-2019:3517.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/108372
- https://seclists.org/bugtraq/2019/Jun/26
- https://access.redhat.com/security/cve/CVE-2019-11833
- https://www.debian.org/security/2019/dsa-4465
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GJGZIMGB72TL7OGWRMHIL43WHXFQWU4X/
- http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
- https://github.com/torvalds/linux/commit/592acbf16821288ecdc4192c47e3774a4c48bb64
- https://lists.debian.org/debian-lts-announce/2019/06/msg00010.html
- https://lists.debian.org/debian-lts-announce/2019/06/msg00011.html
- https://access.redhat.com/errata/RHSA-2019:3517
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
- https://usn.ubuntu.com/4068-1/
- https://usn.ubuntu.com/4068-2/
- https://usn.ubuntu.com/4069-1/
- https://usn.ubuntu.com/4069-2/
- https://usn.ubuntu.com/4076-1/
- https://usn.ubuntu.com/4095-2/
- https://usn.ubuntu.com/4118-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GJGZIMGB72TL7OGWRMHIL43WHXFQWU4X/
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