VulnerabilityModified
CVE-2020-35198
The memory allocator has a possible integer overflow in calculating a memory block's size to be allocated by calloc().
CRITICAL 9.8EPSS 2.49%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in Wind River VxWorks 7. The memory allocator has a possible integer overflow in calculating a 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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.49% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- windriver/vxworks · oracle/communications eagle
- Source
- cve@mitre.org
References
- https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2020-35198Vendor Advisory
- https://support2.windriver.com/index.php?page=security-noticesVendor Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2020-35198Vendor Advisory
- https://support2.windriver.com/index.php?page=security-noticesVendor Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.