UBUNTU-CVE-2023-2861
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UBUNTU-CVE-2023-2861
Published: 30 Jun 2023Last Modified: 9 Jun 2026
Upstream:
Aliases:
Summary:
Details: A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.
References: https://ubuntu.com/security/CVE-2023-2861, https://ubuntu.com/security/notices/USN-6567-1, https://www.cve.org/CVERecord?id=CVE-2023-2861, https://ubuntu.com/security/notices/USN-8172-1, https://ubuntu.com/security/notices/USN-8412-1
Affected packages
Package
Name: qemu
Purl: pkg:deb/ubuntu/qemu?arch=source&distro=esm-infra-legacy%2Ftrusty
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -2.0.0+dfsg-2ubuntu1.47+esm6
Affected versions
1.5.0+dfsg-3ubuntu5
1.5.0+dfsg-3ubuntu6
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
