SUSE Linux Enterprise 11 SP3 LTSS 核心已更新，可獲得多種安全性修正和錯誤修正。已修正以下安全性錯誤：

- CVE-2016-3955：在 Linux 核心中，drivers/usb/usbip/usbip_common.c 的 usbip_recv_xbuff 函式允許遠端攻擊者透過 USB/IP 封包中的特製長度值，造成拒絕服務 (超出邊界寫入) 或可能造成其他不明影響 (bnc#975945)。

- CVE-2016-4998：在 Linux 核心中，netfilter 子系統的 IPT_SO_SET_REPLACE setsockopt 實作允許本機使用者利用容器內的 root 存取權，提供可導致跨越規則集 blob 邊界的特製位移值，進而造成拒絕服務 (超出邊界讀取)，或可能從核心堆積記憶體取得敏感資訊 (bnc#986365)。

- CVE-2015-7513：Linux 核心中的 arch/x86/kvm/x86.c 在狀態還原期間未重設 PIT 計數器值，其允許來賓作業系統使用者透過零值造成拒絕服務 (除以零錯誤和主機作業系統當機)；此問題與 kvm_vm_ioctl_set_pit 和 kvm_vm_ioctl_set_pit2 函式有關 (bnc#960689)。

- CVE-2013-4312：Linux 核心允許本機使用者在關閉 UNIX 通訊端之前透過其傳送每個描述符號，進而繞過檔案描述符號限制並造成拒絕服務 (記憶體消耗)；此問題與 net/unix/af_unix.c 和 net/unix/garbage.c 有關 (bnc#839104)。

- CVE-2016-4997：在 Linux 核心的 netfilter 子系統中，相容的 IPT_SO_SET_REPLACE setsockopt 實作允許本機使用者利用容器內的 root 存取權，提供可觸發非預定遞減的特製位移值，進而取得權限或造成拒絕服務 (記憶體損毀) (bnc#986362)。

- CVE-2016-5829：在 Linux 核心的 drivers/hid/usbhid/hiddev.c 中，hiddev_ioctl_usage 函式中的多個堆積型緩衝區溢位問題允許本機使用者造成拒絕服務，或可能透過特製的 (1) HIDIOCGUSAGES 或 (2) HIDIOCSUSAGES ioctl 呼叫造成其他不明影響 (bnc#986572)。

- CVE-2016-4470：在 Linux 核心中，security/keys/key.c 中的 key_reject_and_link 函式未確保特定資料結構經過初始化，進而允許本機使用者透過涉及特製 keyctl request2 命令的向量，造成拒絕服務 (系統當機) (bnc#984755)。

- CVE-2016-5244：在 Linux 核心中，net/rds/recv.c 內的 rds_inc_info_copy 函式並未初始化特定結構成員，進而允許遠端攻擊者讀取 RDS 訊息，從核心堆疊記憶體取得敏感資訊 (bnc#983213)。

- CVE-2016-1583：在 Linux 核心中，fs/ecryptfs/kthread.c 的 ecryptfs_privileged_open 函式允許本機使用者透過涉及用於 /proc 路徑名稱之特製 mmap 呼叫的向量，取得權限或造成拒絕服務 (堆疊記憶體消耗)，進而導致遞迴分頁錯誤處理 (bnc#983143)。

- CVE-2016-4913：在 Linux 核心中，fs/isofs/rock.c 的 get_rock_ridge_filename 函式不當處理包含 \0 字元的 NM (即替代名稱) 項目，進而允許本機使用者透過特製的 isofs 檔案系統，從核心記憶體取得敏感資訊或可能造成其他不明影響 (bnc#980725)。

- CVE-2016-4580：在 Linux 核心中，net/x25/x25_facilities.c 的 x25_negotiate_facilities 函式未正確初始化特定資料結構，其允許攻擊者透過 X.25 呼叫要求，取得核心堆疊記憶體中的敏感資訊 (bnc#981267)。

- CVE-2016-4805：在 Linux 核心中，drivers/net/ppp/ppp_generic.c 中的釋放後使用弱點允許本機使用者造成拒絕服務 (記憶體損毀與系統當機，或執行緒同步鎖定)，或可能透過移除網路命名空間造成其他不明影響，這與 ppp_register_net_channel 和 ppp_unregister_channel 函式相關 (bnc#980371)。

- CVE-2016-0758：在 Linux 核心中，lib/asn1_decoder.c 的整數溢位允許本機使用者透過特製 ASN.1 資料取得權限 (bnc#979867)。

- CVE-2015-7833：Linux 核心中的 usbvision 驅動程式允許實體位置靠近的攻擊者透過 USB 裝置描述符號中的非零 bInterfaceNumber 值造成拒絕服務 (錯誤) (bnc#950998)。

- CVE-2016-2187：在 Linux 核心的 drivers/input/tablet/gtco.c 中，gtco_probe 函式允許實體位置靠近的攻擊者透過 USB 裝置描述符號中特製的端點值，造成拒絕服務 (NULL 指標解除參照和系統當機) (bnc#971944)。

- CVE-2016-4482：在 Linux 核心中，drivers/usb/core/devio.c 的 proc_connectinfo 函式未初始化特定資料結構，其允許本機使用者透過特製的 USBDEVFS_CONNECTINFO ioctl 呼叫，從核心堆疊記憶體取得敏感資訊 (bnc#978401)。

- CVE-2016-4565：Linux 核心中的 InfiniBand (即 IB) 堆疊未正確依賴寫入系統呼叫，這允許本機使用者透過 uAPI 介面造成拒絕服務 (核心記憶體寫入作業)，或可能造成其他不明影響 (bnc#979548)。

- CVE-2016-2053：在 Linux 核心中，lib/asn1_decoder.c 中的 asn1_ber_decoder 函式允許攻擊者透過缺少公開金鑰的 ASN.1 BER 檔案造成拒絕服務 (錯誤)，進而導致 crypto/asymmetric_keys/public_key.c 中的 public_key_verify_signature 函式錯誤處理 (bnc#963762)。

- CVE-2016-4485：在 Linux 核心中，net/llc/af_llc.c 的 llc_cmsg_rcv 函式並未初始化特定資料結構，進而讓攻擊者透過讀取訊息，從核心堆疊記憶體取得敏感資訊 (bnc#978821)。

- CVE-2016-4578：Linux 核心中的 sound/core/timer.c 未初始化特定 r1 資料結構，其允許本機使用者透過使用特製的 ALSA 計時器介面，從核心堆疊記憶體取得敏感資訊，這與 (1) snd_timer_user_ccallback 和 (2) snd_timer_user_tinterrupt 函式相關 (bnc#979879)。

- CVE-2016-4569：在 Linux 核心中，sound/core/timer.c 的 snd_timer_user_params 函式未初始化特定資料結構，其允許本機使用者透過使用特製的 ALSA 計時器介面，從核心堆疊記憶體取得敏感資訊 (bnc#979213)。

- CVE-2016-4486：在 Linux 核心中，net/core/rtnetlink.c 內的 rtnl_fill_link_ifmap 函式並未初始化特定資料結構，進而允許本機使用者透過讀取 Netlink 訊息，從核心堆疊記憶體取得敏感資訊 (bnc#978822)。

- CVE-2016-3134：Linux 核心中的 netfilter 子系統未驗證特定位移欄位，進而允許本機使用者透過 IPT_SO_SET_REPLACE setsockopt 呼叫取得權限或造成拒絕服務 (堆積記憶體損毀) (bnc#971126)。

- CVE-2016-5696：Linux 核心中的 net/ipv4/tcp_input.c 未正確判斷測驗 ACK 區段率，進而使攔截式攻擊者更容易透過盲目式視窗內攻擊，劫持 TCP 工作階段。(bsc#989152)

- CVE-2016-6480：在 Linux 核心中，drivers/scsi/aacraid/commctrl.c 的 ioctl_send_fib 函式有一個爭用情形，其允許本機使用者變更特定大小值，進而造成拒絕服務 (超出邊界存取或系統當機)，即「雙重擷取」弱點。
 (bsc#991608) 也已修正下列非安全性錯誤：

- 更新 patches.fixes/pci-determine-actual-vpd-size-on-first-acc ess.patch (bsc#971729、bsc#974428)。

- 將 PCI VPD 大小修補程式更新至上游：

- PCI：確定第一次存取時的實際 VPD 大小 (bsc#971729)。

- PCI：更新 VPD 定義 (bsc#971729)。(從認可 d2af5b7e0cd7ee2a54f02ad65ec300d16b3ad956 精選)

- 更新 patches.fixes/pci-update-vpd-definitions.patch (bsc#971729、bsc#974428)。

- cgroups：如果移轉失敗，不將工作附加至子系統 (bnc#979274)。

- cgroups：cgroup_attach_proc 中更多的安全工作清單鎖定 (bnc#979274)。

- fs/cifs：修正 s390x 的 cifs_uniqueid_to_ino_t() 函式 (bsc#944309)

- fs/cifs：修正 root 的錯誤前置路徑 (bsc#963655、bsc#979681)

- hid：新增 Logitech 0xc055 的 ALWAYS_POLL quirk (bnc#962404)。

- hid：新增 HP OEM 滑鼠至 quirk ALWAYS_POLL (bsc#919351)。

- hid：新增 HP 所用之 PIXART OEM 滑鼠的 quirk (bsc#919351)。

- hid-elo：終止而非排清工作。

- ipv4/fib：若 in_dev 無作用，不要在主要位址遺漏時發出警告 (bsc#971360)。

- ipv4：修正選取無效來源位址的錯誤 (bsc#980788)。

- ipvs：將預先建立的 TCP 狀態計算為已啟用 (bsc#970114)。

- kabi、unix：正確考量透過 unix 通訊端傳遞的 FD (bnc#839104)。

- mm/hugetlb.c：更正遺失的私人旗標清除功能 (VM 功能，bnc#971446)。

- mm/hugetlb：修正上游認可的反向移植 07443a85ad (VM 功能，bnc#971446)。

- mm：thp：修正 THP 頁面錯誤和 MADV_DONTNEED 之間的 SMP 爭用情形 (VM 功能、bnc#986445)。

- nfs：不嘗試解碼遺漏的目錄項目 (bsc#980931)。

- nfs：修正 get_ih_name 指標比對中的 root 記憶體損毀問題 (bsc#984107)。

- nfs：減少存取快取 shrinker 鎖定 (bnc#866130)。

- ppp：延遲 ppp 通道的 netns 參照釋放 (bsc#980371)。

- s390/cio：收集格式 1 通道路徑描述資料 (bsc#966460、LTC#136434)。

- s390/cio：確保一致的測量狀態 (bsc#966460、LTC#136434)。

- s390/cio：修正測量特性記憶體洩漏 (bsc#966460、LTC#136434)。

- s390/cio：更新測量特性 (bsc#966460、LTC#136434)。

- usbhid：新增裝置 USB_DEVICE_ID_LOGITECH_C077 (bsc#919351)。

- usbhid：更多具有 ALWAYS_POLL 的滑鼠 (bsc#919351)。

- usbhid：另一個具有 ALWAYS_POLL 的滑鼠 (bsc#919351)。

- veth：不修改 ip_summed (bsc#969149)。

- virtio_scsi：實作 eh_timed_out 回呼。

- vmxnet3：針對 LRO 封包 segCnt 可以是 1 (bsc#988065)。

- xfs：檔案大小未變更時避免抓取 ilock (bsc#983535)。

- xfs：避免查閱節點目錄損毀時發生 xfs_buf 懸置 (bsc#989401)。

- xfs：交易完成時僅更新 last_sync_lsn (bsc#987709)。

請注意，Tenable Network Security 已直接從 SUSE 安全性公告擷取前置描述區塊。Tenable 已盡量在不造成其他問題的前提下，嘗試自動清理並將其格式化。

openSUSE Leap 42.1 核心已更新至 4.1.31 版，獲得多個安全性和錯誤修正。

已修正以下安全性錯誤：

- CVE-2016-2847：在 Linux 核心中，fs/pipe.c 未限制管道中的未讀資料量，進而允許本機使用者透過建立許多含有非預設大小的管道，造成拒絕服務 (記憶體消耗) (bnc#970948)。

- CVE-2016-3134：Linux 核心中的 netfilter 子系統未驗證特定位移欄位，進而允許本機使用者透過 IPT_SO_SET_REPLACE setsockopt 呼叫取得權限或造成拒絕服務 (堆積記憶體損毀) (bnc#971126)。

- CVE-2016-3156：Linux 核心中的 IPv4 實作不當處理裝置物件的解構，進而允許來賓作業系統使用者透過針對大量 IP 位址進行安排，造成拒絕服務 (主機作業系統網路中斷) (bnc#971360)。

- CVE-2016-4485：在 Linux 核心中，net/llc/af_llc.c 的 llc_cmsg_rcv 函式並未初始化特定資料結構，進而讓攻擊者透過讀取訊息，從核心堆疊記憶體取得敏感資訊 (bnc#978821)。

- CVE-2016-4486：在 Linux 核心中，net/core/rtnetlink.c 內的 rtnl_fill_link_ifmap 函式並未初始化特定資料結構，進而允許本機使用者透過讀取 Netlink 訊息，從核心堆疊記憶體取得敏感資訊 (bnc#978822)。

- CVE-2016-4557：在 Linux 核心中，kernel/bpf/verifier.c 的 replace_map_fd_with_map_ptr 函式未正確維護 fd 資料結構，其允許本機使用者透過參照不正確檔案描述符號的特製 BPF 指示，取得權限或造成拒絕服務 (釋放後使用) (bnc#979018)。

- CVE-2016-4580：在 Linux 核心中，net/x25/x25_facilities.c 的 x25_negotiate_facilities 函式未正確初始化特定資料結構，其允許攻擊者透過 X.25 呼叫要求，取得核心堆疊記憶體中的敏感資訊 (bnc#981267)。

- CVE-2016-4805：在 Linux 核心中，drivers/net/ppp/ppp_generic.c 中的釋放後使用弱點允許本機使用者造成拒絕服務 (記憶體損毀與系統當機，或執行緒同步鎖定)，或可能透過移除網路命名空間造成其他不明影響，這與 ppp_register_net_channel 和 ppp_unregister_channel 函式相關 (bnc#980371)。

- CVE-2016-4951：在 Linux 核心中，net/tipc/socket.c 的 tipc_nl_publ_dump 函式未驗證通訊端是否存在，其允許本機使用者透過 dumpit 作業，造成拒絕服務 (NULL 指標解除參照和系統當機)，或可能造成其他不明影響 (bnc#981058)。

- CVE-2015-8787：在 Linux 核心的 net/netfilter/nf_nat_redirect.c 中，nf_nat_redirect_ipv4 函式允許遠端攻擊者傳送特定 IPv4 封包至未完整設定的介面，藉此造成拒絕服務 (NULL 指標解除參照與系統當機) 或可能造成其他不明影響；此問題與 CVE-2003-1604 有關 (bnc#963931)。

- CVE-2016-4569：在 Linux 核心中，sound/core/timer.c 的 snd_timer_user_params 函式未初始化特定資料結構，其允許本機使用者透過使用特製的 ALSA 計時器介面，從核心堆疊記憶體取得敏感資訊 (bnc#979213)。

- CVE-2016-4578：Linux 核心中的 sound/core/timer.c 未初始化特定 r1 資料結構，其允許本機使用者透過使用特製的 ALSA 計時器介面，從核心堆疊記憶體取得敏感資訊，這與 (1) snd_timer_user_ccallback 和 (2) snd_timer_user_tinterrupt 函式相關 (bnc#979879)。

- CVE-2016-6828：tcp_xmit_retransmit_queue() 中的一個釋放後使用問題已修正，本機攻擊者可利用此問題損毀核心 (bsc#994296)。

- CVE-2016-6480：在 Linux 核心中，drivers/scsi/aacraid/commctrl.c 的 ioctl_send_fib 函式有一個爭用情形，其允許本機使用者變更特定大小值，進而造成拒絕服務 (超出邊界存取或系統當機)，即「雙重擷取」弱點 (bnc#991608)。

- CVE-2016-4998：在 Linux 核心中，netfilter 子系統的 IPT_SO_SET_REPLACE setsockopt 實作允許本機使用者利用容器內的 root 存取權，提供可導致跨越規則集 blob 邊界的特製位移值，進而造成拒絕服務 (超出邊界讀取)，或可能從核心堆積記憶體取得敏感資訊 (bnc#986362 986365 990058)。

- CVE-2016-5696：Linux 核心中的 net/ipv4/tcp_input.c 未正確判斷測驗 ACK 區段率，進而使攔截式攻擊者更容易透過盲目式視窗內攻擊，劫持 TCP 工作階段 (bnc#989152)。

- CVE-2016-1237：Linux 核心中的 nfsd 允許本機使用者設定 POSIX ACL，進而繞過預定的檔案權限限制；此問題與 nfs2acl.c、nfs3acl.c 和 nfs4acl.c 相關 (bnc#986570)。

下列非安全性錯誤已修正：

- AF_VSOCK：縮小 prepare_to_wait 影響的區域 (bsc#994520)。

- KVM：arm/arm64：正確處理轉送時間更正 (bnc#974266)。

- Linux 4.1.29。重新整理修補程式：
patches.xen/xen3-fixup-xen 刪除的修補程式：
patches.fixes/0001-Revert-ecryptfs-forbid-opening-files- without-mmap-ha.patch patches.fixes/0001-ecryptfs-don-t-allow-mmap-when-the-lo wer-file-system.patch patches.rpmify/Revert-mm-swap.c-flush-lru-pvecs-on-compo und-page-ar patches.rpmify/Revert-powerpc-Update-TM-user-feature-bit s-in-scan_f

- 還原「mm/swap.c：於複雜頁面到達時排清 lru pvecs」(boo#989084)。

- 還原「powerpc：更新 scan_features() 中的 TM 使用者功能位元」。修正 4.1.28 於 ppc 的版本錯誤。

- 恢復 4.1.31 kabi 修正的 i8042_check_power_owner()。

- USB：OHCI：排程失敗時不將 ED 標記為 ED_OPER (bnc#987886)。

- USB：驗證端點描述符號中的 wMaxPacketValue 項目 (bnc#991665)。

- 更新 patches.fixes/0002-nfsd-check-permissions-when-setting-A CLs.patch (bsc#986570 CVE-2016-1237)。

- 更新 patches.fixes/0001-posix_acl-Add-set_posix_acl.patch (bsc#986570 CVE-2016-1237)。

- netfilter：x_tables: fix 4.1 穩定的反向移植 (bsc#989176)。

- nfsd：設定 ACL 時檢查權限 (bsc#986570)。

- posix_acl：新增 set_posix_acl (bsc#986570)。

- ppp：延遲 ppp 通道的 netns 參照釋放 (bsc#980371)。

- series.conf：將 kABI 修補程式移至其自己的區段

- supported.conf：啟用 i2c-designware 驅動程式 (bsc#991110)

- tcp：啟用所有「測驗 ack」的按通訊端速率限制 (bsc#989152)。

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

  - CVE-2015-7515, CVE-2016-2184, CVE-2016-2185,     CVE-2016-2186, CVE-2016-2187, CVE-2016-3136,     CVE-2016-3137, CVE-2016-3138, CVE-2016-3140     Ralf Spenneberg of OpenSource Security reported that     various USB drivers do not sufficiently validate USB     descriptors. This allowed a physically present user with     a specially designed USB device to cause a denial of     service (crash).

  - CVE-2016-0821     Solar Designer noted that the list 'poisoning' feature,     intended to mitigate the effects of bugs in list     manipulation in the kernel, used poison values within     the range of virtual addresses that can be allocated by     user processes.

  - CVE-2016-1237     David Sinquin discovered that nfsd does not check     permissions when setting ACLs, allowing users to grant     themselves permissions to a file by setting the ACL.

  - CVE-2016-1583     Jann Horn of Google Project Zero reported that the     eCryptfs filesystem could be used together with the proc     filesystem to cause a kernel stack overflow. If the     ecryptfs-utils package is installed, local users could     exploit this, via the mount.ecryptfs_private program,     for denial of service (crash) or possibly for privilege     escalation.

  - CVE-2016-2117     Justin Yackoski of Cryptonite discovered that the     Atheros L2 ethernet driver incorrectly enables     scatter/gather I/O. A remote attacker could take     advantage of this flaw to obtain potentially sensitive     information from kernel memory.

  - CVE-2016-2143     Marcin Koscielnicki discovered that the fork     implementation in the Linux kernel on s390 platforms     mishandles the case of four page-table levels, which     allows local users to cause a denial of service (system     crash).

  - CVE-2016-3070     Jan Stancek of Red Hat discovered a local denial of     service vulnerability in AIO handling.

  - CVE-2016-3134     The Google Project Zero team found that the netfilter     subsystem does not sufficiently validate filter table     entries. A user with the CAP_NET_ADMIN capability could     use this for denial of service (crash) or possibly for     privilege escalation. Debian disables unprivileged user     namespaces by default, if locally enabled with the     kernel.unprivileged_userns_clone sysctl, this allows     privilege escalation.

  - CVE-2016-3156     Solar Designer discovered that the IPv4 implementation     in the Linux kernel did not perform the destruction of     inet device objects properly. An attacker in a guest OS     could use this to cause a denial of service (networking     outage) in the host OS.

  - CVE-2016-3157 / XSA-171     Andy Lutomirski discovered that the x86_64 (amd64) task     switching implementation did not correctly update the     I/O permission level when running as a Xen paravirtual     (PV) guest. In some configurations this would allow     local users to cause a denial of service (crash) or to     escalate their privileges within the guest.

  - CVE-2016-3672     Hector Marco and Ismael Ripoll noted that it was     possible to disable Address Space Layout Randomisation     (ASLR) for x86_32 (i386) programs by removing the stack     resource limit. This made it easier for local users to     exploit security flaws in programs that have the setuid     or setgid flag set.

  - CVE-2016-3951     It was discovered that the cdc_ncm driver would free     memory prematurely if certain errors occurred during its     initialisation. This allowed a physically present user     with a specially designed USB device to cause a denial     of service (crash) or possibly to escalate their     privileges.

  - CVE-2016-3955     Ignat Korchagin reported that the usbip subsystem did     not check the length of data received for a USB buffer.
    This allowed denial of service (crash) or privilege     escalation on a system configured as a usbip client, by     the usbip server or by an attacker able to impersonate     it over the network. A system configured as a usbip     server might be similarly vulnerable to physically     present users.

  - CVE-2016-3961 / XSA-174     Vitaly Kuznetsov of Red Hat discovered that Linux     allowed the use of hugetlbfs on x86 (i386 and amd64)     systems even when running as a Xen paravirtualised (PV)     guest, although Xen does not support huge pages. This     allowed users with access to /dev/hugepages to cause a     denial of service (crash) in the guest.

  - CVE-2016-4470     David Howells of Red Hat discovered that a local user     can trigger a flaw in the Linux kernel's handling of key     lookups in the keychain subsystem, leading to a denial     of service (crash) or possibly to privilege escalation.

  - CVE-2016-4482, CVE-2016-4485, CVE-2016-4486,     CVE-2016-4569, CVE-2016-4578, CVE-2016-4580,     CVE-2016-5243, CVE-2016-5244

    Kangjie Lu reported that the USB devio, llc, rtnetlink,     ALSA timer, x25, tipc, and rds facilities leaked     information from the kernel stack.

  - CVE-2016-4565     Jann Horn of Google Project Zero reported that various     components in the InfiniBand stack implemented unusual     semantics for the write() operation. On a system with     InfiniBand drivers loaded, local users could use this     for denial of service or privilege escalation.

  - CVE-2016-4581     Tycho Andersen discovered that in some situations the     Linux kernel did not handle propagated mounts correctly.
    A local user can take advantage of this flaw to cause a     denial of service (system crash).

  - CVE-2016-4805     Baozeng Ding discovered a use-after-free in the generic     PPP layer in the Linux kernel. A local user can take     advantage of this flaw to cause a denial of service     (system crash), or potentially escalate their     privileges.

  - CVE-2016-4913     Al Viro found that the ISO9660 filesystem implementation     did not correctly count the length of certain invalid     name entries. Reading a directory containing such name     entries would leak information from kernel memory. Users     permitted to mount disks or disk images could use this     to obtain sensitive information.

  - CVE-2016-4997 / CVE-2016-4998     Jesse Hertz and Tim Newsham discovered that missing     input sanitising in Netfilter socket handling may result     in denial of service. Debian disables unprivileged user     namespaces by default, if locally enabled with the     kernel.unprivileged_userns_clone sysctl, this also     allows privilege escalation.

The SUSE Linux Enterprise 11 SP3 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed :

  - CVE-2016-3955: The usbip_recv_xbuff function in     drivers/usb/usbip/usbip_common.c in the Linux kernel     allowed remote attackers to cause a denial of service     (out-of-bounds write) or possibly have unspecified other     impact via a crafted length value in a USB/IP packet     (bnc#975945).

  - CVE-2016-4998: The IPT_SO_SET_REPLACE setsockopt     implementation in the netfilter subsystem in the Linux     kernel allowed local users to cause a denial of service     (out-of-bounds read) or possibly obtain sensitive     information from kernel heap memory by leveraging     in-container root access to provide a crafted offset     value that leads to crossing a ruleset blob boundary     (bnc#986365).

  - 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-2013-4312: The Linux kernel allowed local users to     bypass file-descriptor limits and cause a denial of     service (memory consumption) by sending each descriptor     over a UNIX socket before closing it, related to     net/unix/af_unix.c and net/unix/garbage.c (bnc#839104).

  - CVE-2016-4997: The compat IPT_SO_SET_REPLACE setsockopt     implementation in the netfilter subsystem in the Linux     kernel allowed local users to gain privileges or cause a     denial of service (memory corruption) by leveraging     in-container root access to provide a crafted offset     value that triggers an unintended decrement     (bnc#986362).

  - CVE-2016-5829: Multiple heap-based buffer overflows in     the hiddev_ioctl_usage function in     drivers/hid/usbhid/hiddev.c in the Linux kernel allow     local users to cause a denial of service or possibly     have unspecified other impact via a crafted (1)     HIDIOCGUSAGES or (2) HIDIOCSUSAGES ioctl call     (bnc#986572).

  - CVE-2016-4470: The key_reject_and_link function in     security/keys/key.c in the Linux kernel did not ensure     that a certain data structure was initialized, which     allowed local users to cause a denial of service (system     crash) via vectors involving a crafted keyctl request2     command (bnc#984755).

  - CVE-2016-5244: The rds_inc_info_copy function in     net/rds/recv.c in the Linux kernel did not initialize a     certain structure member, which allowed remote attackers     to obtain sensitive information from kernel stack memory     by reading an RDS message (bnc#983213).

  - CVE-2016-1583: The ecryptfs_privileged_open function in     fs/ecryptfs/kthread.c in the Linux kernel allowed 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 (bnc#983143).

  - CVE-2016-4913: The get_rock_ridge_filename function in     fs/isofs/rock.c in the Linux kernel mishandled NM (aka     alternate name) entries containing \0 characters, which     allowed local users to obtain sensitive information from     kernel memory or possibly have unspecified other impact     via a crafted isofs filesystem (bnc#980725).

  - CVE-2016-4580: The x25_negotiate_facilities function in     net/x25/x25_facilities.c in the Linux kernel did not     properly initialize a certain data structure, which     allowed attackers to obtain sensitive information from     kernel stack memory via an X.25 Call Request     (bnc#981267).

  - CVE-2016-4805: Use-after-free vulnerability in     drivers/net/ppp/ppp_generic.c in the Linux kernel     allowed local users to cause a denial of service (memory     corruption and system crash, or spinlock) or possibly     have unspecified other impact by removing a network     namespace, related to the ppp_register_net_channel and     ppp_unregister_channel functions (bnc#980371).

  - CVE-2016-0758: Integer overflow in lib/asn1_decoder.c in     the Linux kernel allowed local users to gain privileges     via crafted ASN.1 data (bnc#979867).

  - CVE-2015-7833: The usbvision driver in the Linux kernel     allowed physically proximate attackers to cause a denial     of service (panic) via a nonzero bInterfaceNumber value     in a USB device descriptor (bnc#950998).

  - CVE-2016-2187: The gtco_probe function in     drivers/input/tablet/gtco.c in the Linux kernel allowed     physically proximate attackers to cause a denial of     service (NULL pointer dereference and system crash) via     a crafted endpoints value in a USB device descriptor     (bnc#971944).

  - CVE-2016-4482: The proc_connectinfo function in     drivers/usb/core/devio.c in the Linux kernel did not     initialize a certain data structure, which allowed local     users to obtain sensitive information from kernel stack     memory via a crafted USBDEVFS_CONNECTINFO ioctl call     (bnc#978401).

  - CVE-2016-4565: The InfiniBand (aka IB) stack in the     Linux kernel incorrectly relies on the write system     call, which allowed local users to cause a denial of     service (kernel memory write operation) or possibly have     unspecified other impact via a uAPI interface     (bnc#979548).

  - CVE-2016-2053: The asn1_ber_decoder function in     lib/asn1_decoder.c in the Linux kernel allowed attackers     to cause a denial of service (panic) via an ASN.1 BER     file that lacks a public key, leading to mishandling by     the public_key_verify_signature function in     crypto/asymmetric_keys/public_key.c (bnc#963762).

  - CVE-2016-4485: The llc_cmsg_rcv function in     net/llc/af_llc.c in the Linux kernel did not initialize     a certain data structure, which allowed attackers to     obtain sensitive information from kernel stack memory by     reading a message (bnc#978821).

  - CVE-2016-4578: sound/core/timer.c in the Linux kernel     did not initialize certain r1 data structures, which     allowed local users to obtain sensitive information from     kernel stack memory via crafted use of the ALSA timer     interface, related to the (1) snd_timer_user_ccallback     and (2) snd_timer_user_tinterrupt functions     (bnc#979879).

  - CVE-2016-4569: The snd_timer_user_params function in     sound/core/timer.c in the Linux kernel did not     initialize a certain data structure, which allowed local     users to obtain sensitive information from kernel stack     memory via crafted use of the ALSA timer interface     (bnc#979213).

  - CVE-2016-4486: The rtnl_fill_link_ifmap function in     net/core/rtnetlink.c in the Linux kernel did not     initialize a certain data structure, which allowed local     users to obtain sensitive information from kernel stack     memory by reading a Netlink message (bnc#978822).

  - CVE-2016-3134: The netfilter subsystem in the Linux     kernel did not validate certain offset fields, which     allowed local users to gain privileges or cause a denial     of service (heap memory corruption) via an     IPT_SO_SET_REPLACE setsockopt call (bnc#971126).

  - 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. (bsc#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.
    (bsc#991608)

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The openSUSE Leap 42.1 kernel was updated to 4.1.31 to receive various security and bugfixes.

The following security bugs were fixed :

  - CVE-2016-2847: fs/pipe.c in the Linux kernel did not     limit the amount of unread data in pipes, which allowed     local users to cause a denial of service (memory     consumption) by creating many pipes with non-default     sizes (bnc#970948).

  - CVE-2016-3134: The netfilter subsystem in the Linux     kernel did not validate certain offset fields, which     allowed local users to gain privileges or cause a denial     of service (heap memory corruption) via an     IPT_SO_SET_REPLACE setsockopt call (bnc#971126).

  - CVE-2016-3156: The IPv4 implementation in the Linux     kernel mishandled destruction of device objects, which     allowed guest OS users to cause a denial of service     (host OS networking outage) by arranging for a large     number of IP addresses (bnc#971360).

  - CVE-2016-4485: The llc_cmsg_rcv function in     net/llc/af_llc.c in the Linux kernel did not initialize     a certain data structure, which allowed attackers to     obtain sensitive information from kernel stack memory by     reading a message (bnc#978821).

  - CVE-2016-4486: The rtnl_fill_link_ifmap function in     net/core/rtnetlink.c in the Linux kernel did not     initialize a certain data structure, which allowed local     users to obtain sensitive information from kernel stack     memory by reading a Netlink message (bnc#978822).

  - CVE-2016-4557: The replace_map_fd_with_map_ptr function     in kernel/bpf/verifier.c in the Linux kernel did not     properly maintain an fd data structure, which allowed     local users to gain privileges or cause a denial of     service (use-after-free) via crafted BPF instructions     that reference an incorrect file descriptor     (bnc#979018).

  - CVE-2016-4580: The x25_negotiate_facilities function in     net/x25/x25_facilities.c in the Linux kernel did not     properly initialize a certain data structure, which     allowed attackers to obtain sensitive information from     kernel stack memory via an X.25 Call Request     (bnc#981267).

  - CVE-2016-4805: Use-after-free vulnerability in     drivers/net/ppp/ppp_generic.c in the Linux kernel     allowed local users to cause a denial of service (memory     corruption and system crash, or spinlock) or possibly     have unspecified other impact by removing a network     namespace, related to the ppp_register_net_channel and     ppp_unregister_channel functions (bnc#980371).

  - CVE-2016-4951: The tipc_nl_publ_dump function in     net/tipc/socket.c in the Linux kernel did not verify     socket existence, which allowed local users to cause a     denial of service (NULL pointer dereference and system     crash) or possibly have unspecified other impact via a     dumpit operation (bnc#981058).

  - CVE-2015-8787: The nf_nat_redirect_ipv4 function in     net/netfilter/nf_nat_redirect.c in the Linux kernel     allowed remote attackers to cause a denial of service     (NULL pointer dereference and system crash) or possibly     have unspecified other impact by sending certain IPv4     packets to an incompletely configured interface, a     related issue to CVE-2003-1604 (bnc#963931).

  - CVE-2016-4569: The snd_timer_user_params function in     sound/core/timer.c in the Linux kernel did not     initialize a certain data structure, which allowed local     users to obtain sensitive information from kernel stack     memory via crafted use of the ALSA timer interface     (bnc#979213).

  - CVE-2016-4578: sound/core/timer.c in the Linux kernel     did not initialize certain r1 data structures, which     allowed local users to obtain sensitive information from     kernel stack memory via crafted use of the ALSA timer     interface, related to the (1) snd_timer_user_ccallback     and (2) snd_timer_user_tinterrupt functions     (bnc#979879).

  - CVE-2016-6828: A use after free in     tcp_xmit_retransmit_queue() was fixed that could be used     by local attackers to crash the kernel (bsc#994296).

  - 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-2016-4998: The IPT_SO_SET_REPLACE setsockopt     implementation in the netfilter subsystem in the Linux     kernel allowed local users to cause a denial of service     (out-of-bounds read) or possibly obtain sensitive     information from kernel heap memory by leveraging     in-container root access to provide a crafted offset     value that leads to crossing a ruleset blob boundary     (bnc#986362 986365 990058).

  - 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-2016-1237: 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).

  - KVM: arm/arm64: Handle forward time correction     gracefully (bnc#974266).

  - Linux 4.1.29. Refreshed patch:
    patches.xen/xen3-fixup-xen Deleted patches:
    patches.fixes/0001-Revert-ecryptfs-forbid-opening-files-     without-mmap-ha.patch     patches.fixes/0001-ecryptfs-don-t-allow-mmap-when-the-lo     wer-file-system.patch     patches.rpmify/Revert-mm-swap.c-flush-lru-pvecs-on-compo     und-page-ar     patches.rpmify/Revert-powerpc-Update-TM-user-feature-bit     s-in-scan_f

  - Revert 'mm/swap.c: flush lru pvecs on compound page     arrival' (boo#989084).

  - Revert 'powerpc: Update TM user feature bits in     scan_features()'. Fix the build error of 4.1.28 on ppc.

  - Revive i8042_check_power_owner() for 4.1.31 kabi fix.

  - USB: OHCI: Do not mark EDs as ED_OPER if scheduling     fails (bnc#987886).

  - 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).

  - netfilter: x_tables: fix 4.1 stable backport     (bsc#989176).

  - 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).

  - series.conf: Move a kABI patch to its own section

  - supported.conf: enable i2c-designware driver     (bsc#991110)

  - tcp: enable per-socket rate limiting of all 'challenge     acks' (bsc#989152).

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A vulnerability was found in Linux kernel. There is an     information leak in file 'sound/core/timer.c' of the     latest mainline Linux kernel, the stack object     aEURoetreadaEUR has a total size of 32 bytes. It contains a     8-bytes padding, which is not initialized but sent to     user via copy_to_user(), resulting a kernel     leak.(CVE-2016-4569)

  - A vulnerability was found in Linux kernel. There is an     information leak in file sound/core/timer.c of the     latest mainline Linux kernel. The stack object aEURoer1aEUR     has a total size of 32 bytes. Its field aEURoeeventaEUR and     aEURoevalaEUR both contain 4 bytes padding. These 8 bytes     padding bytes are sent to user without being     initialized.(CVE-2016-4578)

  - The x25_negotiate_facilities function in     net/x25/x25_facilities.c in the Linux kernel before     4.5.5 does not properly initialize a certain data     structure, which allows attackers to obtain sensitive     information from kernel stack memory via an X.25 Call     Request.(CVE-2016-4580)

  - fs/pnode.c in the Linux kernel before 4.5.4 does not     properly traverse a mount propagation tree in a certain     case involving a slave mount, which allows local users     to cause a denial of service (NULL pointer dereference     and OOPS) via a crafted series of mount system     calls.(CVE-2016-4581)

  - Use after free vulnerability was found in percpu using     previously allocated memory in bpf. First
    __alloc_percpu_gfp() is called, then the memory is     freed with free_percpu() which triggers async     pcpu_balance_work and then pcpu_extend_area_map could     use a chunk after it has been freed.(CVE-2016-4794)

  - Use-after-free vulnerability in     drivers/net/ppp/ppp_generic.c in the Linux kernel     before 4.5.2 allows local users to cause a denial of     service (memory corruption and system crash, or     spinlock) or possibly have unspecified other impact by     removing a network namespace, related to the     ppp_register_net_channel and ppp_unregister_channel     functions.(CVE-2016-4805)

  - A vulnerability was found in the Linux kernel. Payloads     of NM entries are not supposed to contain NUL. When     such entry is processed, only the part prior to the     first NUL goes into the concatenation (i.e. the     directory entry name being encoded by a bunch of NM     entries). The process stops when the amount collected     so far + the claimed amount in the current NM entry     exceed 254. However, the value returned as the total     length is the sum of *claimed* sizes, not the actual     amount collected. And that's what will be passed to     readdir() callback as the name length - 8Kb
    __copy_to_user() from a buffer allocated by
    __get_free_page().(CVE-2016-4913)

  - A flaw was discovered in processing setsockopt for 32     bit processes on 64 bit systems. This flaw will allow     attackers to alter arbitrary kernel memory when     unloading a kernel module. This action is usually     restricted to root-privileged users but can also be     leveraged if the kernel is compiled with CONFIG_USER_NS     and CONFIG_NET_NS and the user is granted elevated     privileges.(CVE-2016-4997)

  - An out-of-bounds heap memory access leading to a Denial     of Service, heap disclosure, or further impact was     found in setsockopt(). The function call is normally     restricted to root, however some processes with     cap_sys_admin may also be able to trigger this flaw in     privileged container environments.(CVE-2016-4998)

  - A race condition was found in the way the Linux     kernel's memory subsystem handled the copy-on-write     (COW) breakage of private read-only memory mappings. An     unprivileged, local user could use this flaw to gain     write access to otherwise read-only memory mappings and     thus increase their privileges on the     system.(CVE-2016-5195)

  - It was found that the RFC 5961 challenge ACK rate     limiting as implemented in the Linux kernel's     networking subsystem allowed an off-path attacker to     leak certain information about a given connection by     creating congestion on the global challenge ACK rate     limit counter and then measuring the changes by probing     packets. An off-path attacker could use this flaw to     either terminate TCP connection and/or inject payload     into non-secured TCP connection between two endpoints     on the network.(CVE-2016-5696)

  - A heap-based buffer overflow vulnerability was found in     the Linux kernel's hiddev driver. This flaw could allow     a local attacker to corrupt kernel memory, possible     privilege escalation or crashing the     system.(CVE-2016-5829)

  - When creating audit records for parameters to executed     children processes, an attacker can convince the Linux     kernel audit subsystem can create corrupt records which     may allow an attacker to misrepresent or evade logging     of executing commands.(CVE-2016-6136)

  - It was found that the unlink and rename functionality     in overlayfs did not verify the upper dentry for     staleness. A local, unprivileged user could use the     rename syscall on overlayfs on top of xfs to panic or     crash the system.(CVE-2016-6197)

  - A flaw was found that the vfs_rename() function did not     detect hard links on overlayfs. A local, unprivileged     user could use the rename syscall on overlayfs on top     of xfs to crash the system.(CVE-2016-6198)

  - System using the infiniband support module ib_srpt were     vulnerable to a denial of service by system crash by a     local attacker who is able to abort writes to a device     using this initiator.(CVE-2016-6327)

  - A race condition flaw was found in the ioctl_send_fib()     function in the Linux kernel's aacraid implementation.
    A local attacker could use this flaw to cause a denial     of service (out-of-bounds access or system crash) by     changing a certain size value.(CVE-2016-6480)

  - kernel/events/core.c in the performance subsystem in     the Linux kernel before 4.0 mismanages locks during     certain migrations, which allows local users to gain     privileges via a crafted application, aka Android     internal bug 30955111.(CVE-2016-6786)

  - kernel/events/core.c in the performance subsystem in     the Linux kernel before 4.0 mismanages locks during     certain migrations, which allows local users to gain     privileges via a crafted application, aka Android     internal bug 31095224.(CVE-2016-6787)

  - A use-after-free vulnerability was found in     tcp_xmit_retransmit_queue and other tcp_* functions.
    This condition could allow an attacker to send an     incorrect selective acknowledgment to existing     connections, possibly resetting a     connection.(CVE-2016-6828)

  - Linux kernel built with the 802.1Q/802.1ad     VLAN(CONFIG_VLAN_8021Q) OR Virtual eXtensible Local     Area Network(CONFIG_VXLAN) with Transparent Ethernet     Bridging(TEB) GRO support, is vulnerable to a stack     overflow issue. It could occur while receiving large     packets via GRO path, as an unlimited recursion could     unfold in both VLAN and TEB modules, leading to a stack     corruption in the kernel.(CVE-2016-7039)

  - It was found that when the gcc stack protector was     enabled, reading the /proc/keys file could cause a     panic in the Linux kernel due to stack corruption. This     happened because an incorrect buffer size was used to     hold a 64-bit timeout value rendered as     weeks.(CVE-2016-7042)

  - It was found that when file permissions were modified     via chmod and the user modifying them was not in the     owning group or capable of CAP_FSETID, the setgid bit     would be cleared. Setting a POSIX ACL via setxattr sets     the file permissions as well as the new ACL, but     doesn't clear the setgid bit in a similar way. This     could allow a local user to gain group privileges via     certain setgid applications.(CVE-2016-7097)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Published	Updated	Severity
93370	SUSE SLES11 安全性更新：kernel (SUSE-SU-2016:2245-1)	Nessus	SuSE Local Security Checks	9/8/2016	1/19/2021	critical
93445	openSUSE 安全性更新：Linux 核心 (openSUSE-2016-1076)	Nessus	SuSE Local Security Checks	9/13/2016	1/19/2021	critical
91886	Debian DSA-3607-1 : linux - security update	Nessus	Debian Local Security Checks	6/29/2016	1/11/2021	critical
93370	SUSE SLES11 Security Update : kernel (SUSE-SU-2016:2245-1)	Nessus	SuSE Local Security Checks	9/8/2016	1/19/2021	critical
93445	openSUSE Security Update : the Linux Kernel (openSUSE-2016-1076)	Nessus	SuSE Local Security Checks	9/13/2016	1/19/2021	critical
125100	EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1494)	Nessus	Huawei Local Security Checks	5/15/2019	3/8/2022	high

Detections

Analytics

Plugins Search

critical

critical

critical

critical

critical

high