High severity · published Sep 1, 2021
CVE-2021-30355
Amazon Kindle e-reader prior to and including version 5.13.4 improperly manages privileges, allowing the framework user to elevate privileges to root
8.6
CVSS
6.9%
EPSS
No
On KEV
Description
Amazon Kindle e-reader prior to and including version 5.13.4 improperly manages privileges, allowing the framework user to elevate privileges to root.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)6.9% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KF
Kindle Firmware · Amazon
through 5.13.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-30355
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-30355
Exploit
https://research.checkpoint.com/2021/i-can-take-over-your-kindle/
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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…