Home/CVE/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,
CVE

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,

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.

MEDIUM · CVSS 5.5 EPSS 0.00024
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-908Use of Uninitialized Resource
▤

Affected Products & Versions

15
linux kernel<= 5.1.2
fedoraproject fedoraall versions
debian linuxall versions
canonical ubuntu linuxall versions
redhat enterprise linuxall versions
redhat enterprise linux desktopall versions
redhat enterprise linux eusall versions
redhat enterprise linux for real timeall versions
⚠

Public Exploits & PoCs

1
pocpacketstormsecurity.com · Kernel-Live-Patch-Security-Notice-LSN-0058-1.htmlpacketstormsecurity.com
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD15 May 2019 · 01:29 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
⚑

Vendor Advisories

25
rhsaRHSA-2019:3517Moderate
rhsaRHSA-2019:3309Moderate
android-securityANDROID-2019-11-01High
suse-csafSUSE-SU-2019:2430-1
rhsaRHSA-2019:2029Moderate
🔗

References & Sources

17
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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://www.securityfocus.com/bid/108372Broken LinkThird Party AdvisoryVDB Entry
https://github.com/torvalds/linux/commit/592acbf16821288ecdc4192c47e3774a4c48bb64PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/06/msg00010.htmlMailing ListThird Party Advisory
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