Ubuntu Linux
CVE-2014-3633
MEDIUM
Severity by source
AV:N/AC:M/Au:N/C:P/I:N/A:P
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
AV:N/AC:M/Au:N/C:P/I:N/A:P
Lifecycle Timeline
1DescriptionCVE.org
The qemuDomainGetBlockIoTune function in qemu/qemu_driver.c in libvirt before 1.2.9, when a disk has been hot-plugged or removed from the live image, allows remote attackers to cause a denial of service (crash) or read sensitive heap information via a crafted blkiotune query, which triggers an out-of-bounds read.
AnalysisAI
The qemuDomainGetBlockIoTune function in qemu/qemu_driver.c in libvirt before 1.2.9, when a disk has been hot-plugged or removed from the live image, allows remote attackers to cause a denial of. Rated medium severity (CVSS 5.8), this vulnerability is remotely exploitable. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. The qemuDomainGetBlockIoTune function in qemu/qemu_driver.c in libvirt before 1.2.9, when a disk has been hot-plugged or removed from the live image, allows remote attackers to cause a denial of service (crash) or read sensitive heap information via a crafted blkiotune query, which triggers an out-of-bounds read. Affected products include: Canonical Ubuntu Linux, Libvirt. Version information: before 1.2.9.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.
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External POC / Exploit Code
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