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CVE Record

CVE-2014-0143: Multiple integer overflows in the block drivers in QEMU, possibly before 2.0.0, allow local users to cause...

Multiple integer overflows in the block drivers in QEMU, possibly before 2.0.0, allow local users to cause a denial of service (crash) via a crafted catalog size in (1) the parallels_open function in block/parallels.c or (2) bochs_open function in bochs.c, a large L1 table in the (3) qcow2_snapshot_load_tmp in qcow2-snapshot.c or (4) qcow2_grow_l1_table function in qcow2-cluster.c, (5) a large request in the bdrv_check_byte_request function in block.c and other block drivers, (6) crafted cluster indexes in the get_refcount function in qcow2-refcount.c, or (7) a large number of blocks in the cloop_open function in cloop.c, which trigger buffer overflows, memory corruption, large memory allocations and out-of-bounds read and writes.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2014-0143 is a set of integer overflow flaws in QEMU block drivers. A local user with a crafted disk image or block metadata could crash QEMU, causing denial of service. Sources do not show active exploitation or a confirmed impact beyond denial of service. Exposure is most likely where older QEMU builds handle local or user-supplied virtual disk images, especially multi-user virtualization hosts or services importing untrusted images. Treat as a maintenance priority for systems still running legacy QEMU or accepting third-party images. It is not evidenced as actively exploited, but can affect host availability. Mitigation focus: Inventory QEMU versions and package advisories on virtualization hosts.; Apply vendor updates from Red Hat, Debian, or the relevant QEMU package maintainer.; Avoid processing untrusted disk images with vulnerable QEMU builds..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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2Source links

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