logo
DATABASE RESOURCES PRICING ABOUT US

openSUSE Security Update : the Linux Kernel (openSUSE-2016-1227) (Dirty COW)

Description

The openSUSE 13.2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2015-8956: The rfcomm_sock_bind function in net/bluetooth/rfcomm/sock.c in the Linux kernel allowed local users to obtain sensitive information or cause a denial of service (NULL pointer dereference) via vectors involving a bind system call on a Bluetooth RFCOMM socket (bnc#1003925). - CVE-2016-5195: A local privilege escalation using MAP_PRIVATE was fixed, which is reportedly exploited in the wild (bsc#1004418). - CVE-2016-8658: Stack-based buffer overflow in the brcmf_cfg80211_start_ap function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg8021 1.c in the Linux kernel allowed local users to cause a denial of service (system crash) or possibly have unspecified other impact via a long SSID Information Element in a command to a Netlink socket (bnc#1004462). - CVE-2016-7117: Use-after-free vulnerability in the __sys_recvmmsg function in net/socket.c in the Linux kernel allowed remote attackers to execute arbitrary code via vectors involving a recvmmsg system call that is mishandled during error processing (bnc#1003077). - CVE-2016-0823: The pagemap_open function in fs/proc/task_mmu.c in the Linux kernel before 3.19.3, as used in Android 6.0.1 before 2016-03-01, allowed local users to obtain sensitive physical-address information by reading a pagemap file, aka Android internal bug 25739721 (bnc#994759). - CVE-2016-7425: The arcmsr_iop_message_xfer function in drivers/scsi/arcmsr/arcmsr_hba.c in the Linux kernel did not restrict a certain length field, which allowed local users to gain privileges or cause a denial of service (heap-based buffer overflow) via an ARCMSR_MESSAGE_WRITE_WQBUFFER control code (bnc#999932). - CVE-2016-6327: drivers/infiniband/ulp/srpt/ib_srpt.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and system crash) by using an ABORT_TASK command to abort a device write operation (bnc#994748). - CVE-2016-6828: The tcp_check_send_head function in include/net/tcp.h in the Linux kernel did not properly maintain certain SACK state after a failed data copy, which allowed local users to cause a denial of service (tcp_xmit_retransmit_queue use-after-free and system crash) via a crafted SACK option (bnc#994296). - CVE-2016-5696: net/ipv4/tcp_input.c in the Linux kernel did not properly determine the rate of challenge ACK segments, which made it easier for man-in-the-middle attackers to hijack TCP sessions via a blind in-window attack (bnc#989152) - CVE-2016-6480: Race condition in the ioctl_send_fib function in drivers/scsi/aacraid/commctrl.c in the Linux kernel allowed local users to cause a denial of service (out-of-bounds access or system crash) by changing a certain size value, aka a 'double fetch' vulnerability (bnc#991608). - CVE-2015-7513: arch/x86/kvm/x86.c in the Linux kernel did not reset the PIT counter values during state restoration, which allowed guest OS users to cause a denial of service (divide-by-zero error and host OS crash) via a zero value, related to the kvm_vm_ioctl_set_pit and kvm_vm_ioctl_set_pit2 functions (bnc#960689). - CVE-2016-1237: nfsd in the Linux kernel allowed local users to bypass intended file-permission restrictions by setting a POSIX ACL, related to nfs2acl.c, nfs3acl.c, and nfs4acl.c (bnc#986570). The following non-security bugs were fixed : - AF_VSOCK: Shrink the area influenced by prepare_to_wait (bsc#994520). - xen: Fix refcnt regression in xen netback introduced by changes made for bug#881008 (bnc#978094) - MSI-X: fix an error path (luckily none so far). - usb: fix typo in wMaxPacketSize validation (bsc#991665). - usb: validate wMaxPacketValue entries in endpoint descriptors (bnc#991665). - Update patches.fixes/0002-nfsd-check-permissions-when-setting-A CLs.patch (bsc#986570 CVE#2016-1237). - Update patches.fixes/0001-posix_acl-Add-set_posix_acl.patch (bsc#986570 CVE#2016-1237). - apparmor: fix change_hat not finding hat after policy replacement (bsc#1000287). - arm64: Honor __GFP_ZERO in dma allocations (bsc#1004045). - arm64: __clear_user: handle exceptions on strb (bsc#994752). - arm64: dma-mapping: always clear allocated buffers (bsc#1004045). - arm64: perf: reject groups spanning multiple HW PMUs (bsc#1003931). - blkfront: fix an error path memory leak (luckily none so far). - blktap2: eliminate deadlock potential from shutdown path (bsc#909994). - blktap2: eliminate race from deferred work queue handling (bsc#911687). - btrfs: ensure that file descriptor used with subvol ioctls is a dir (bsc#999600). - cdc-acm: added sanity checking for probe() (bsc#993891). - kaweth: fix firmware download (bsc#993890). - kaweth: fix oops upon failed memory allocation (bsc#993890). - netback: fix flipping mode (bsc#996664). - netback: fix flipping mode (bsc#996664). - netfront: linearize SKBs requiring too many slots (bsc#991247). - nfsd: check permissions when setting ACLs (bsc#986570). - posix_acl: Add set_posix_acl (bsc#986570). - ppp: defer netns reference release for ppp channel (bsc#980371). - tunnels: Do not apply GRO to multiple layers of encapsulation (bsc#1001486). - usb: hub: Fix auto-remount of safely removed or ejected USB-3 devices (bsc#922634). - x86: suppress lazy MMU updates during vmalloc fault processing (bsc#951155). - xen-netback-generalize.patch: Fold back into base patch. - xen3-patch-2.6.31.patch: Fold back into base patch. - xen3-patch-3.12.patch: Fold bac into base patch. - xen3-patch-3.15.patch: Fold back into base patch. - xen3-patch-3.3.patch: Fold back into base patch. - xen3-patch-3.9.patch: Fold bac into base patch. - xen3-patch-3.9.patch: Fold back into base patch. - xenbus: do not bail early from xenbus_dev_request_and_reply() (luckily none so far). - xenbus: inspect the correct type in xenbus_dev_request_and_reply().


Related