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CVE-2020-27815

HIGHCVSS 7.8/10EPSS 0.78%

Last modified

CVE-2020-27815 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.. EPSS estimates a 0.78% chance of exploitation in the next 30 days.

Description

A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.78%

51.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel> 4.4.249
LinuxLinux Kernel>= 4.5, < 4.9.249
LinuxLinux Kernel>= 4.10, < 4.14.213
LinuxLinux Kernel>= 4.15, < 4.19.164
LinuxLinux Kernel>= 4.20, < 5.4.86
LinuxLinux Kernel>= 5.5, < 5.10.4
DebianDebian Linux9.0
DebianDebian Linux10.0
NetappH300s FirmwareAll versions
NetappH500s FirmwareAll versions
NetappH700s FirmwareAll versions
NetappH300e FirmwareAll versions
NetappH500e FirmwareAll versions
NetappH700e FirmwareAll versions
NetappH410s FirmwareAll versions
NetappH410c FirmwareAll versions
NetappAff A250 FirmwareAll versions
NetappFas500f FirmwareAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-27815?
A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
How severe is CVE-2020-27815?
CVE-2020-27815 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.78% probability of exploitation in the next 30 days.
How do I fix CVE-2020-27815?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-27815?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST