High severity · published Dec 17, 2020
CVE-2020-15294
Compiler Optimization Removal or Modification of Security-critical Code vulnerability in IntPeParseUnwindData() results in multiple dereferences to the same pointer
7.0
CVSS
0.3%
EPSS
No
On KEV
Description
Compiler Optimization Removal or Modification of Security-critical Code vulnerability in IntPeParseUnwindData() results in multiple dereferences to the same pointer. If the pointer is located in memory-mapped from the guest space, this may cause a race-condition where the generated code would dereference the same address twice, thus obtaining different values, which may lead to arbitrary code execution. This issue affects: Bitdefender Hypervisor Introspection versions prior to 1.132.2.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HI
Hypervisor Introspection · Bitdefender
before 1.132.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-15294
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-15294
Third Party Advisory
https://www.bitdefender.com/support/security-advisories/compiler-optimization-removal-modification-security-critical-code-vulnerability-bitdefender-hypervisor-introspection-va-9339/
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