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An issue was discovered in the Linux kernel 4.4 through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. NOTE: Members in the community argue that the integer overflow does not lead to a security issue in this case.
Publish Date : 2020-06-09 Last Update Date : 2021-01-04
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CVSS Scores & Vulnerability Types
| CVSS Score |
7.2 |
| Confidentiality Impact |
Complete
(There is total information disclosure, resulting in all system files being revealed.) |
| Integrity Impact |
Complete
(There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.) |
| Availability Impact |
Complete
(There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.) |
| Access Complexity |
Low
(Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. ) |
| Authentication |
Not required
(Authentication is not required to exploit the vulnerability.) |
| Gained Access |
None |
| Vulnerability Type(s) |
Overflow |
| CWE ID |
190 |
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Products Affected By CVE-2020-13974
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Number Of Affected Versions By Product
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References For CVE-2020-13974
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Metasploit Modules Related To CVE-2020-13974
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