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CVE

CVE-2020-14385

A flaw was found in the Linux kernel before 5.9-rc4. A failure of the file system metadata validator in XFS can cause an

A flaw was found in the Linux kernel before 5.9-rc4. A failure of the file system metadata validator in XFS can cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt. This can lead to the filesystem being shutdown, or otherwise rendered inaccessible until it is remounted, leading to a denial of service.

The highest threat from this vulnerability is to system availability.

MEDIUM · CVSS 5.5 EPSS 0.00117
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-131Incorrect Calculation of Buffer Size
CWE-131Incorrect Calculation of Buffer Size
▤

Affected Products & Versions

4
linux kernel< 5.9.0
linux kernelall versions
canonical ubuntu linuxall versions
debian linuxall versions
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · secalert@redhat.com
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 Sep 2020 · 10:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

15
suse-csafopenSUSE-SU-2021:0242-1
usnUSN-4576-1
rhsaRHSA-2020:4289Important
rhsaRHSA-2020:4287Important
rhsaRHSA-2020:4286Important
🔗

References & Sources

5
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/2020-10/msg00001.htmlBroken Link
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14385Issue TrackingThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f4020438fab05364018c91f7e02ebdd192085933PatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.htmlMailing ListThird Party Advisory
https://usn.ubuntu.com/4576-1/Third Party Advisory
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