CVSS: 7.2EPSS: 0%CPEs: 108EXPL: 0CVE-2014-2894 – QEMU: out of bounds buffer accesses, guest triggerable via IDE SMART
https://notcve.org/view.php?id=CVE-2014-2894
Off-by-one error in the cmd_smart function in the smart self test in hw/ide/core.c in QEMU before 2.0 allows local users to have unspecified impact via a SMART EXECUTE OFFLINE command that triggers a buffer underflow and memory corruption. Error de superación de límite (off-by-one) en la función cmd_smart en la autoprueba SMART en hw/ide/core.c en QEMU anterior a 2.0 permite a usuarios locales tener impacto no especificado a través de un comando SMART EXECUTE OFFLINE que provoca un subdesbordamiento de buffer (buffer underflow) y corrupción de memoria. • http://rhn.redhat.com/errata/RHSA-2014-0704.html http://rhn.redhat.com/errata/RHSA-2014-0743.html http://rhn.redhat.com/errata/RHSA-2014-0744.html http://secunia.com/advisories/57945 http://secunia.com/advisories/58191 http://www.openwall.com/lists/oss-security/2014/04/15/4 http://www.openwall.com/lists/oss-security/2014/04/18/5 http://www.securityfocus.com/bid/66932 http://www.ubuntu.com/usn/USN-2182-1 https://lists.nongnu.org/archive/html/qemu-d • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-189: Numeric Errors •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2014-0142 – qemu: crash by possible division by zero
https://notcve.org/view.php?id=CVE-2014-0142
QEMU, possibly before 2.0.0, allows local users to cause a denial of service (divide-by-zero error and crash) via a zero value in the (1) tracks field to the seek_to_sector function in block/parallels.c or (2) extent_size field in the bochs function in block/bochs.c. QEMU, posiblemente en versiones anteriores a la 2.0.0, permite que usuarios locales provoquen una denegación de servicio (error de división entre cero y bloqueo) mediante un valor cero en el campo de seguimiento (1) en la función seek_to_sector en block/parallels.c o el campo (2) extent_size field en la función bochs en block/bochs.c. • http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=8e53abbc20d08ae3ec30c2054e1161314ad9501d http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9302e863aa8baa5d932fc078967050c055fa1a7f 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 https://bugzilla.redhat.com/show_bug.cgi?id=1078201 https://access.redhat.com/security/cve/CVE-2014-0142 • CWE-369: Divide By Zero •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2014-0145 – Qemu: prevent possible buffer overflows
https://notcve.org/view.php?id=CVE-2014-0145
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). Múltiples desbordamientos de búfer en QEMU en versiones anteriores a la 1.7.2 y en versiones 2.x anteriores a la 2.0.0 permiten que usuarios locales provoquen una denegación de servicio o que puedan ejecutar código arbitrario mediante una gran (1) tabla L1 en qcow2_snapshot_load_tmp en el controlador de bloque QCOW 2 (block/qcow2-snapshot.c) o (2) fragmento sin comprimir, (3) tamaño de fragmento, o (4) número de sectores en el controlador de bloque DMG (block/dmg.c). • http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=c05e4667be91b46ab42b5a11babf8e84d476cc6b http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=f0dce23475b5af5da6b17b97c1765271307734b6 http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=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/ • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2014-0146 – Qemu: qcow2: NULL dereference in qcow2_open() error path
https://notcve.org/view.php?id=CVE-2014-0146
The qcow2_open function in the (block/qcow2.c) in QEMU before 1.7.2 and 2.x before 2.0.0 allows local users to cause a denial of service (NULL pointer dereference) via a crafted image which causes an error, related to the initialization of the snapshot_offset and nb_snapshots fields. La función qcow2_open en (block/qcow2.c) en QEMU en versiones anteriores a la 1.7.2 y en versiones 2.x anteriores a la 2.0.0 permite que usuarios locales provoquen una denegación de servicio (desreferencia de puntero NULL) mediante una imagen manipulada que causa un error, relacionado con la inicialización de los campos snapshot_offset y nb_snapshots. • http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=11b128f4062dd7f89b14abc8877ff20d41b28be9 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=1078232 https://access.redhat.com/security/cve/CVE-2014-0146 • CWE-476: NULL Pointer Dereference •
CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 0CVE-2014-0148 – Qemu: vhdx: bounds checking for block_size and logical_sector_size
https://notcve.org/view.php?id=CVE-2014-0148
Qemu before 2.0 block driver for Hyper-V VHDX Images is vulnerable to infinite loops and other potential issues when calculating BAT entries, due to missing bounds checks for block_size and logical_sector_size variables. These are used to derive other fields like 'sectors_per_block' etc. A user able to alter the Qemu disk image could ise this flaw to crash the Qemu instance resulting in DoS. El controlador de bloques de Qemu versiones anteriores a 2.0 para imágenes VHDX de Hyper-V es vulnerable a bucles infinitos y otros problemas potenciales cuando son calculadas las entradas BAT, debido a que faltan comprobaciones de límites para las variables block_size y logical_sector_size. Éstas son usadas para derivar otros campos como "sectors_per_block", etc. • http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1d7678dec4761acdc43439da6ceda41a703ba1a6 http://rhn.redhat.com/errata/RHSA-2014-0420.html http://rhn.redhat.com/errata/RHSA-2014-0421.html http://www.openwall.com/lists/oss-security/2014/03/26/8 https://bugzilla.redhat.com/show_bug.cgi?id=1078212 https://lists.gnu.org/archive/html/qemu-devel/2014-03/msg04994.html https://access.redhat.com/security/cve/CVE-2014-0148 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •