High severity · published Feb 3, 2021
CVE-2020-28895
In Wind River VxWorks, memory allocator has a possible overflow in calculating the memory block's size to be allocated by calloc()
7.3
CVSS
1.5%
EPSS
No
On KEV
Description
In Wind River VxWorks, memory allocator has a possible overflow in calculating the memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CE
Communications Eagle · Oracle
46.8.0 through 48.6.2; 46.9.1 through 46.9.3; 46.7.0 · source: NVD
VX
Vxworks · Windriver
6.9 before 6.9.4.12; 6.9.4.12; 6.9.4.12 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-28895
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-28895
Vendor Advisory
https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2020-28895
Permissions Required
https://support2.windriver.com/index.php?page=defects&on=view&id=V7LIBC-1327
Patch
https://www.oracle.com/security-alerts/cpuapr2022.html
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