ID |
CVE-2021-43638
|
Summary |
Amazon Amazon WorkSpaces agent is affected by Integer Overflow. IOCTL Handler 0x22001B in the Amazon WorkSpaces agent below v1.0.1.1537 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet. |
References |
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Vulnerable Configurations |
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CVSS |
Base: | 7.2 (as of 09-12-2021 - 14:13) |
Impact: | |
Exploitability: | |
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CWE |
CWE-190 |
CAPEC |
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Forced Integer Overflow
This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.
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Access |
Vector | Complexity | Authentication |
LOCAL |
LOW |
NONE |
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Impact |
Confidentiality | Integrity | Availability |
COMPLETE |
COMPLETE |
COMPLETE |
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cvss-vector
via4
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AV:L/AC:L/Au:N/C:C/I:C/A:C
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Last major update |
09-12-2021 - 14:13 |
Published |
07-12-2021 - 20:15 |
Last modified |
09-12-2021 - 14:13 |