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CVE-2014-0143

Publication date 26 March 2014

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.0 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
qemu 14.04 LTS trusty
Not affected
13.10 saucy Ignored
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
qemu-kvm 14.04 LTS trusty Not in release
13.10 saucy Not in release
12.10 quantal Ignored
12.04 LTS precise
Fixed 1.0+noroms-0ubuntu14.17
10.04 LTS lucid
Fixed 0.12.3+noroms-0ubuntu9.24

Severity score breakdown

Parameter Value
Base score 7.0 · High
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-2342-1
    • QEMU vulnerabilities
    • 8 September 2014

Other references