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CVE-2021-30354

HIGHCVSS 8.6/10EPSS 7.04%

Last modified

CVE-2021-30354 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. Amazon Kindle e-reader prior to and including version 5.13.4 contains an Integer Overflow that leads to a Heap-Based Buffer Overflow in function CJBig2Image::expand() and results in a memory corruption that leads to code execution when parsing a crafted PDF book.. EPSS estimates a 7.04% chance of exploitation in the next 30 days.

Description

Amazon Kindle e-reader prior to and including version 5.13.4 contains an Integer Overflow that leads to a Heap-Based Buffer Overflow in function CJBig2Image::expand() and results in a memory corruption that leads to code execution when parsing a crafted PDF book.

Metrics

CVSS 3.1
8.6/10

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

EPSS Probability
7.04%

93.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AmazonKindle Firmware<= 5.13.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-30354?
Amazon Kindle e-reader prior to and including version 5.13.4 contains an Integer Overflow that leads to a Heap-Based Buffer Overflow in function CJBig2Image::expand() and results in a memory corruption that leads to code execution when parsing a crafted PDF book.
How severe is CVE-2021-30354?
CVE-2021-30354 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 7.04% probability of exploitation in the next 30 days.
How do I fix CVE-2021-30354?
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-2021-30354?

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

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Source: NVD / NIST