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.

Multiple stack-based buffer overflows in the ib_fill_isqlda function in dbdimp.c in DBD-Firebird before 1.19 allow remote attackers to have unspecified impact via unknown vectors that trigger an error condition, related to binding octets to columns.

kernel: int80 fork from 64-bit tasks mishandling

arch/x86/kernel/entry_64.S in the Linux kernel before 3.19.2 does not prevent the TS_COMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the (1) fork or (2) close system call, as demonstrated by an attack against seccomp before 3.16.

kernel: denial of service (DoS) attack against IPv6 network stacks due to improper handling of Router Advertisements.

The ndisc_router_discovery function in net/ipv6/ndisc.c in the Neighbor Discovery (ND) protocol implementation in the IPv6 stack in the Linux kernel before 3.19.6 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.

Kernel: vfs: Do not allow escaping from bind mounts

The prepend_path function in fs/dcache.c in the Linux kernel before 4.2.4 does not properly handle rename actions inside a bind mount, which allows local users to bypass an intended container protection mechanism by renaming a directory, related to a "double-chroot attack."

curl: re-using authenticated connection when unauthenticated

cURL and libcurl 7.10.6 through 7.41.0 does not properly re-use NTLM connections, which allows remote attackers to connect as other users via an unauthenticated request, a similar issue to CVE-2014-0015.

curl: host name out of boundary memory access

The fix_hostname function in cURL and libcurl 7.37.0 through 7.41.0 does not properly calculate an index, which allows remote attackers to cause a denial of service (out-of-bounds read or write and crash) or possibly have other unspecified impact via a zero-length host name, as demonstrated by "http://:80" and ":80."

curl: cookie parser out of boundary memory access

The sanitize_cookie_path function in cURL and libcurl 7.31.0 through 7.41.0 does not properly calculate an index, which allows remote attackers to cause a denial of service (out-of-bounds write and crash) or possibly have other unspecified impact via a cookie path containing only a double-quote character.

libssh: null pointer dereference due to a logical error in the handling of a SSH_MSG_NEWKEYS and KEXDH_REPLY packets

The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH packet.

curl: Negotiate not treated as connection-oriented

cURL and libcurl 7.10.6 through 7.41.0 do not properly re-use authenticated Negotiate connections, which allows remote attackers to connect as other users via a request.

mysql: use of SSL/TLS can not be enforced in mysql client library (oCERT-2015-003, BACKRONYM)

Oracle MySQL before 5.7.3, Oracle MySQL Connector/C (aka libmysqlclient) before 6.1.3, and MariaDB before 5.5.44 use the --ssl option to mean that SSL is optional, which allows man-in-the-middle attackers to spoof servers via a cleartext-downgrade attack, aka a "BACKRONYM" attack.

curl: sensitive HTTP server headers also sent to proxies

The default configuration for cURL and libcurl before 7.42.1 sends custom HTTP headers to both the proxy and destination server, which might allow remote proxy servers to obtain sensitive information by reading the header contents.

OpenSSL: X509_ATTRIBUTE memory leak

The ASN1_TFLG_COMBINE implementation in crypto/asn1/tasn_dec.c in OpenSSL before 0.9.8zh, 1.0.0 before 1.0.0t, 1.0.1 before 1.0.1q, and 1.0.2 before 1.0.2e mishandles errors caused by malformed X509_ATTRIBUTE data, which allows remote attackers to obtain sensitive information from process memory by triggering a decoding failure in a PKCS#7 or CMS application.

OpenSSL: Race condition handling PSK identify hint

ssl/s3_clnt.c in OpenSSL 1.0.0 before 1.0.0t, 1.0.1 before 1.0.1p, and 1.0.2 before 1.0.2d, when used for a multi-threaded client, writes the PSK identity hint to an incorrect data structure, which allows remote servers to cause a denial of service (race condition and double free) via a crafted ServerKeyExchange message.

python-django-horizon: XSS in Heat stack creation

Cross-site scripting (XSS) vulnerability in the Orchestration/Stack section in OpenStack Dashboard (Horizon) 2014.2 before 2014.2.4 and 2015.1.x before 2015.1.1 allows remote attackers to inject arbitrary web script or HTML via the description parameter in a heat template, which is not properly handled in the help_text attribute in the Field class.

rubygem-rack: Potential Denial of Service Vulnerability in Rack normalize_params()

lib/rack/utils.rb in Rack before 1.5.4 and 1.6.x before 1.6.2, as used with Ruby on Rails 3.x and 4.x and other products, allows remote attackers to cause a denial of service (SystemStackError) via a request with a large parameter depth.

The Render cache system in Drupal 7.x before 7.38, when used to cache content by user role, allows remote authenticated users to obtain private content viewed by user 1 by reading the cache.

Open redirect vulnerability in the Field UI module in Drupal 7.x before 7.38 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the destinations parameter.

The OpenID module in Drupal 6.x before 6.36 and 7.x before 7.38 allows remote attackers to log into other users' accounts by leveraging an OpenID identity from certain providers, as demonstrated by the Verisign, LiveJournal, and StackExchange providers.

cups-filters: texttopdf integer overflow

Integer overflow in filter/texttopdf.c in texttopdf in cups-filters before 1.0.71 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted line size in a print job, which triggers a heap-based buffer overflow.