kernel: x86/nmi: malicious userspace programs can cause the kernel to skip NMIs

arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform does not properly determine when nested NMI processing is occurring, which allows local users to cause a denial of service (skipped NMI) by modifying the rsp register, issuing a syscall instruction, and triggering an NMI.

kernel: x86: nested NMI handler and espfix64 interaction privilege escalation

arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform improperly relies on espfix64 during nested NMI processing, which allows local users to gain privileges by triggering an NMI within a certain instruction window.

Buffer overflow in the Solaris kernel extension in OpenAFS before 1.6.13 allows local users to cause a denial of service (panic or deadlock) or possibly have other unspecified impact via a large group list when joining a PAG.

The pioctl for the OSD FS command in OpenAFS before 1.6.13 uses the wrong pointer when writing the results of the RPC, which allows local users to cause a denial of service (memory corruption and kernel panic) via a crafted OSD FS command.

pioctls in OpenAFS 1.6.x before 1.6.13 allows local users to read kernel memory via crafted commands.

xen: xl command line config handling stack overflow (XSA-137)

Stack-based buffer overflow in the xl command line utility in Xen 4.1.x through 4.5.x allows local guest administrators to gain privileges via a long configuration argument.

Stack consumption vulnerability in the message splitting functionality in Quassel before 0.12-rc1 allows remote attackers to cause a denial of service (uncontrolled recursion) via a crafted massage.

polkit: Memory corruption via javascript rule evaluation

PolicyKit (aka polkit) before 0.113 allows local users to cause a denial of service (memory corruption and polkitd daemon crash) and possibly gain privileges via unspecified vectors, related to "javascript rule evaluation."

polkit: Heap-corruption on duplicate ids

The polkit_backend_action_pool_init function in polkitbackend/polkitbackendactionpool.c in PolicyKit (aka polkit) before 0.113 might allow local users to gain privileges via duplicate action IDs in action descriptions.

WebKit, as used in Apple iOS before 8.3 and Apple TV before 7.2, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2015-04-08-3 and APPLE-SA-2015-04-08-4.

WebKit, as used in Apple iOS before 8.3, Apple TV before 7.2, and Apple Safari before 6.2.5, 7.x before 7.1.5, and 8.x before 8.0.5, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2015-04-08-1, APPLE-SA-2015-04-08-3, and APPLE-SA-2015-04-08-4.

The kernel in Apple iOS before 8.3, Apple OS X before 10.10.3, and Apple TV before 7.2 does not properly determine whether an IPv6 packet had a local origin, which allows remote attackers to bypass an intended network-filtering protection mechanism via a crafted packet.

FontParser in Apple iOS before 8.3 and Apple OS X before 10.10.3 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted font file.

CFNetwork in Apple iOS before 8.3 and Apple OS X before 10.10.3 does not properly handle cookies during processing of redirects in HTTP responses, which allows remote attackers to bypass the Same Origin Policy via a crafted web site.

389-ds-base: nsSSL3Ciphers preference not enforced server side (regression)

389 Directory Server (formerly Fedora Directory Server) before 1.3.3.12 does not enforce the nsSSL3Ciphers preference when creating an sslSocket, which allows remote attackers to have unspecified impact by requesting to use a disabled cipher.

ghostscript-core: out-of-bounbds read and write in gs_ttf.ps

Integer overflow in the gs_heap_alloc_bytes function in base/gsmalloc.c in Ghostscript 9.15 and earlier allows remote attackers to cause a denial of service (crash) via a crafted Postscript (ps) file, as demonstrated by using the ps2pdf command, which triggers an out-of-bounds read or write.

rubygem-activesupport: Possible Denial of Service attack in Active Support in merge_element()

The (1) jdom.rb and (2) rexml.rb components in Active Support in Ruby on Rails before 4.1.11 and 4.2.x before 4.2.2, when JDOM or REXML is enabled, allow remote attackers to cause a denial of service (SystemStackError) via a large XML document depth.

rubygem-activesupport: XSS Vulnerability in ActiveSupport::JSON.encode

Cross-site scripting (XSS) vulnerability in json/encoding.rb in Active Support in Ruby on Rails 3.x and 4.1.x before 4.1.11 and 4.2.x before 4.2.2 allows remote attackers to inject arbitrary web script or HTML via a crafted Hash that is mishandled during JSON encoding.

(Plone): Reflexive HTTP header injection

ZPublisher.HTTPRequest._scrubHeader in Zope 2 before 2.13.19, as used in Plone before 4.3 beta 1, allows remote attackers to inject arbitrary HTTP headers via a linefeed (LF) character.

qemu/kvm: i8254: out-of-bounds memory access in pit_ioport_read function

The pit_ioport_read in i8254.c in the Linux kernel before 2.6.33 and QEMU before 2.3.1 does not distinguish between read lengths and write lengths, which might allow guest OS users to execute arbitrary code on the host OS by triggering use of an invalid index.