IcscertCVELIST:CVE-2021-27439CVE-2021-27439 TencentOS-tiny Integer Overflow or Wraparound
7.3 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
9.8 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
69.5%
TencentOS-tiny version 3.1.0 is vulnerable to integer wrap-around in function 'tos_mmheap_alloc incorrect calculation of effective memory allocation size. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.
CNA Affected
[
{
"product": "TencentOS-tiny",
"vendor": "TencentOS-tiny",
"versions": [
{
"status": "affected",
"version": "3.1.0"
}
]
}
]Related
7.3 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
9.8 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
69.5%