CVE-2014-0145 Information

Description

Multiple buffer overflows in QEMU before 1.7.2 and 2.x before 2.0.0 allow local users to cause a denial of service (crash) or possibly execute arbitrary code via a large (1) L1 table in the qcow2_snapshot_load_tmp in the QCOW 2 block driver (block/qcow2-snapshot.c) or (2) uncompressed chunk (3) chunk length or (4) number of sectors in the DMG block driver (block/dmg.c).

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://git.qemu.org/?p=qemu.git;a=commit;h=c05e4667be91b46ab42b5a11babf8e84d476cc6b http://git.qemu.org/?p=qemu.git;a=commit;h=f0dce23475b5af5da6b17b97c1765271307734b6 http://git.qemu.org/?p=qemu.git;a=commitdiff;h=c165f7758009a4f793c1fc19ebb69cf55313450b http://rhn.redhat.com/errata/RHSA-2014-0420.html http://rhn.redhat.com/errata/RHSA-2014-0421.html http://www.debian.org/security/2014/dsa-3044 http://www.openwall.com/lists/oss-security/2014/03/26/8 https://bugzilla.redhat.com/show_bug.cgi?id=1078885 https://lists.gnu.org/archive/html/qemu-devel/2014-03/msg04994.html

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8