CVE-2020-15294
Compiler Optimization Removal or Modification of Security-critical Code vulnerability in IntPeParseUnwindData() results in multiple dereferences to the same pointer.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.30% probability · 23th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-733
- Affected
- bitdefender/hypervisor introspection
- Source
- cve-requests@bitdefender.com
References
- https://www.bitdefender.com/support/security-advisories/compiler-optimization-removal-modification-security-critical-code-vulnerability-bitdefender-hypervisor-introspection-va-9339/Third Party Advisory
- https://www.bitdefender.com/support/security-advisories/compiler-optimization-removal-modification-security-critical-code-vulnerability-bitdefender-hypervisor-introspection-va-9339/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.