UBUNTU-CVE-2021-3929

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Source
https://ubuntu.com/security/notices/UBUNTU-CVE-2021-3929
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3929.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-3929
Related
Published
2021-12-24T00:00:00Z
Modified
2021-12-24T00:00:00Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvmectrlreset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.

References

Affected packages

Ubuntu:22.04:LTS / qemu

Package

Name
qemu
Purl
pkg:deb/ubuntu/qemu@1:6.2+dfsg-2ubuntu6.2?arch=src?distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:6.2+dfsg-2ubuntu6.2

Affected versions

1:6.*

1:6.0+dfsg-2expubuntu1
1:6.0+dfsg-2expubuntu2
1:6.0+dfsg-2expubuntu4
1:6.2+dfsg-2ubuntu5
1:6.2+dfsg-2ubuntu6
1:6.2+dfsg-2ubuntu6.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "low",
    "binaries": [
        {
            "qemu-system-misc": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-guest-agent-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-block-extra-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-utils-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-user": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-x86-microvm": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-arm-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-ppc-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-user-static": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-arm": "1:6.2+dfsg-2ubuntu6.2",
            "qemu": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-x86-xen": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-sparc": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-data": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-common-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-s390x-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-x86-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-guest-agent": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-utils": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-x86-xen-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-block-extra": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-sparc-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-misc-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-mips-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-x86": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-ppc": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-s390x": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-common": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-gui-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-user-static-dbgsym": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-mips": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-system-gui": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-user-binfmt": "1:6.2+dfsg-2ubuntu6.2",
            "qemu-user-dbgsym": "1:6.2+dfsg-2ubuntu6.2"
        }
    ]
}