7

CVE-2014-0143

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Redhat ≫ Enterprise Linux Version6.0
Qemu ≫ Qemu Version <= 1.7.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.4% 0.318
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7 1 5.9
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 4.4 3.4 6.4
AV:L/AC:M/Au:N/C:P/I:P/A:P
CWE-190 Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

http://www.debian.org/security/2014/dsa-3044
http://rhn.redhat.com/errata/RHSA-2014-0420.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-0421.html
Third Party Advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=509a41bab5306181044b5fff02eadf96d9c8676a
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6a83f8b5bec6f59e56cc49bd49e4c3f8f805d56f
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=8f4754ede56e3f9ea3fd7207f4a7c4453e59285b
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=afbcc40bee4ef51731102d7d4b499ee12fc182e1
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=cab60de930684c33f67d4e32c7509b567f8c445b
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=db8a31d11d6a60f48d6817530640d75aa72a9a2f
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=e3737b820b45e54b059656dc3f914f895ac7a88b
https://bugzilla.redhat.com/show_bug.cgi?id=1079140
Patch
Third Party Advisory
Issue Tracking