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CVE-2021-47478

MEDIUMCVSS 5.5/10EPSS 0.23%

Last modified

CVE-2021-47478 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: isofs: Fix out of bound access for corrupted isofs image When isofs image is suitably corrupted isofs_read_inode() can read data beyond the end of buffer. Sanity-check the directory entry length before using it.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: isofs: Fix out of bound access for corrupted isofs image When isofs image is suitably corrupted isofs_read_inode() can read data beyond the end of buffer. Sanity-check the directory entry length before using it.

Metrics

CVSS 3.1
5.5/10

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

EPSS Probability
0.23%

14.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel< 4.4.292
LinuxLinux Kernel>= 4.5, < 4.9.290
LinuxLinux Kernel>= 4.10, < 4.14.255
LinuxLinux Kernel>= 4.15, < 4.19.217
LinuxLinux Kernel>= 4.20, < 5.4.159
LinuxLinux Kernel>= 5.5, < 5.10.79
LinuxLinux Kernel>= 5.11, < 5.14.18
LinuxLinux Kernel>= 5.15, < 5.15.2

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2021-47478?
In the Linux kernel, the following vulnerability has been resolved: isofs: Fix out of bound access for corrupted isofs image When isofs image is suitably corrupted isofs_read_inode() can read data beyond the end of buffer. Sanity-check the directory entry length before using it.
How severe is CVE-2021-47478?
CVE-2021-47478 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.
How do I fix CVE-2021-47478?
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-2021-47478?

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

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Source: NVD / NIST