ecryptfs-utils: privilege escalation by mounting over /proc/$pid

mount.ecryptfs_private.c in eCryptfs-utils does not validate mount destination filesystem types, which allows local users to gain privileges by mounting over a nonstandard filesystem, as demonstrated by /proc/$pid.

The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid directory.

libtasn1: stack overflow in asn1_der_decoding

Stack-based buffer overflow in asn1_der_decoding in libtasn1 before 4.4 allows remote attackers to have unspecified impact via unknown vectors.

mailman: directory traversal in MTA transports that deliver programmatically

Directory traversal vulnerability in GNU Mailman before 2.1.20, when not using a static alias, allows remote attackers to execute arbitrary files via a .. (dot dot) in a list name.

Use-after-free vulnerability in Oxide allows remote attackers to cause a denial of service (application crash) or execute arbitrary code via unspecified vectors, related to responding synchronously to permission requests.

The setup_snappy_os_mounts function in the ubuntu-core-launcher package before 1.0.27.1 improperly determines the mount point of bind mounts when using snaps, which might allow remote attackers to obtain sensitive information or gain privileges via a snap with a name starting with "ubuntu-core."

libksba: encoding of invalid utf-8 strings in DN decoder src/dn.c (append_quoted, append_atv)

The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data.

xen: unmediated PCI command register access in qemu (xsa126)

QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.

kernel: Stack overflow via ecryptfs and /proc/$pid/environ

The ecryptfs_privileged_open function in fs/ecryptfs/kthread.c in the Linux kernel before 4.6.3 allows local users to gain privileges or cause a denial of service (stack memory consumption) via vectors involving crafted mmap calls for /proc pathnames, leading to recursive pagefault handling.

Mozilla: Vulnerabilities found through code inspection (MFSA 2015-66)

Buffer overflow in the nsXMLHttpRequest::AppendToResponseText function in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and Thunderbird before 38.1 might allow remote attackers to cause a denial of service or have unspecified other impact via unknown vectors.

glibc: libtirpc: stack (frame) overflow in Sun RPC clntudp_call()

Stack-based buffer overflow in the clntudp_call function in sunrpc/clnt_udp.c in the GNU C Library (aka glibc or libc6) allows remote servers to cause a denial of service (crash) or possibly unspecified other impact via a flood of crafted ICMP and UDP packets.

chromium-browser: buffer overflow in libANGLE

The Program::getUniformInternal function in Program.cpp in libANGLE, as used in Google Chrome before 49.0.2623.108, does not properly handle a certain data-type mismatch, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via crafted shader stages.

chromium-browser: out-of-bounds write in V8

The LoadBuffer implementation in Google V8, as used in Google Chrome before 50.0.2661.75, mishandles data types, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted JavaScript code that triggers an out-of-bounds write operation, related to compiler/pipeline.cc and compiler/simplified-lowering.cc.

chromium-browser: uninitialized memory read in media

The media subsystem in Google Chrome before 50.0.2661.75 does not initialize an unspecified data structure, which allows remote attackers to cause a denial of service (invalid read operation) via unknown vectors.

libxml2: Inappropriate fetch of entities content

XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.4, when not in validating mode, allows context-dependent attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors.

Mozilla: Vulnerabilities found through code inspection (MFSA 2015-66)

The ArrayBufferBuilder::append function in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and Thunderbird before 38.1 accesses unintended memory locations, which has unspecified impact and attack vectors.

V8: integer overflow leading to buffer overflow in Zone::New

The Zone::New function in zone.cc in Google V8 before 5.0.71.47, as used in Google Chrome before 50.0.2661.102, does not properly determine when to expand certain memory allocations, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via crafted JavaScript code.

chromium-browser: cross-origin bypass in blink

Blink, as used in Google Chrome before 51.0.2704.63, allows remote attackers to bypass the Same Origin Policy via unspecified vectors.

Mozilla: Vulnerabilities found through code inspection (MFSA 2015-66)

The YCbCrImageDataDeserializer::ToDataSourceSurface function in the YCbCr implementation in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and Thunderbird before 38.1 reads data from uninitialized memory locations, which has unspecified impact and attack vectors.

libksba: denial of service due to stack overflow in src/ber-decoder.c (push_decoder_state, pop_decoder_state)

ber-decoder.c in Libksba before 1.3.3 does not properly handle decoder stack overflows, which allows remote attackers to cause a denial of service (abort) via crafted BER data.