Hypervisor data disclosure via VMSVGA out-of-bounds read
Published Jan 15, 2020 · Updated Sep 30, 2024
Out-of-bounds read in VirtualBox Core before 5.2.36, before 6.0.16, and before 6.1.2 allows guest OS users to read host data. The shader_glsl_texbem function fails to validate user-supplied shader data before reading past an allocated object. Exploitation requires low-privileged code execution in a guest; the flaw discloses sensitive host data and enables hypervisor code execution only when chained with another vulnerability.
Summary
What happened
Out-of-bounds read in VirtualBox Core before 5.2.36, before 6.0.16, and before 6.1.2 allows guest OS users to read host data. The shader_glsl_texbem function fails to validate user-supplied shader data before reading past an allocated object. Exploitation requires low-privileged code execution in a guest; the flaw discloses sensitive host data and enables hypervisor code execution only when chained with another vulnerability.
The record
- CVE
- CVE-2020-2691
- Published
- Jan 15, 2020
- Updated
- Sep 30, 2024
- Vendor
- Oracle Corporation
- Product
- Oracle VM VirtualBox
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 15, 2020CVE publishedPublication date reported by the CVE source.
- Sep 30, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <5.2.36
- Affected versionversion=unspecified <6.0.16
- Affected versionversion=unspecified <6.1.2
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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