Mandriva Linux Security Advisory 2014-249

Mandriva Linux Security Advisory 2014-249 – During migration, the values read from migration stream during ram load are not validated. Especially offset in host_from_stream_offset() and also the length of the writes in the callers of the said function. A user able to alter the savevm data (either on the disk or over the wire during migration) could use either of these flaws to corrupt QEMU process memory on the host, which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process. Paolo Bonzini of Red Hat discovered that the blit region checks were insufficient in the Cirrus VGA emulator in qemu. A privileged guest user could use this flaw to write into qemu address space on the host, potentially escalating their privileges to those of the qemu host process.

CVE-2014-1569

The definite_length_decoder function in lib/util/quickder.c in Mozilla Network Security Services (NSS) before 3.16.2.4 and 3.17.x before 3.17.3 does not ensure that the DER encoding of an ASN.1 length is properly formed, which allows remote attackers to conduct data-smuggling attacks by using a long byte sequence for an encoding, as demonstrated by the SEC_QuickDERDecodeItem function’s improper handling of an arbitrary-length encoding of 0x00.

CVE-2014-3583

The handle_headers function in mod_proxy_fcgi.c in the mod_proxy_fcgi module in the Apache HTTP Server 2.4.10 allows remote FastCGI servers to cause a denial of service (buffer over-read and daemon crash) via long response headers.

CVE-2014-6052

The HandleRFBServerMessage function in libvncclient/rfbproto.c in LibVNCServer 0.9.9 and earlier does not check certain malloc return values, which allows remote VNC servers to cause a denial of service (application crash) or possibly execute arbitrary code by specifying a large screen size in a (1) FramebufferUpdate, (2) ResizeFrameBuffer, or (3) PalmVNCReSizeFrameBuffer message.

CVE-2014-6053

The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service (memory consumption or daemon crash) via a crafted message that is processed by using a single unchecked malloc.

CVE-2014-6253

Multiple cross-site request forgery (CSRF) vulnerabilities in Zenoss Core through 5 Beta 3 allow remote attackers to hijack the authentication of arbitrary users, aka ZEN-12653.

CVE-2014-6254

Multiple cross-site scripting (XSS) vulnerabilities in Zenoss Core through 5 Beta 3 allow remote attackers to inject arbitrary web script or HTML via an attribute in a (1) device name, (2) device detail, (3) report name, (4) report detail, or (5) portlet name, or (6) a string to a helper method, aka ZEN-15381 and ZEN-15410.

CVE-2014-6255

Open redirect vulnerability in the login form in Zenoss Core before 4.2.5 SP161 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via the came_from parameter, aka ZEN-11998.

CVE-2014-6256

Zenoss Core through 5 Beta 3 allows remote attackers to bypass intended access restrictions and place files in a directory with public (1) read or (2) execute access via a move action, aka ZEN-15386.