The SUSE Linux Enterprise Server 11 SP2 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

  - CVE-2015-5707: An integer overflow in the SCSI generic     driver could be potentially used by local attackers to     crash the kernel or execute code.

  - CVE-2015-2830: arch/x86/kernel/entry_64.S in the Linux     kernel did not prevent the TS_COMPAT flag from reaching     a user-mode task, which might have allowed 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 (bnc#926240).

  - CVE-2015-0777: drivers/xen/usbback/usbback.c in the     Linux kernel allowed guest OS users to obtain sensitive     information from uninitialized locations in host OS     kernel memory via unspecified vectors (bnc#917830).

  - CVE-2015-2150: Xen and the Linux kernel did not properly     restrict access to PCI command registers, which might     have allowed local 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     (bnc#919463).

  - CVE-2015-5364: A remote denial of service (hang) via UDP     flood with incorrect package checksums was fixed.
    (bsc#936831).

  - CVE-2015-5366: A remote denial of service (unexpected     error returns) via UDP flood with incorrect package     checksums was fixed. (bsc#936831).

  - CVE-2015-1420: CVE-2015-1420: Race condition in the     handle_to_path function in fs/fhandle.c in the Linux     kernel allowed local users to bypass intended size     restrictions and trigger read operations on additional     memory locations by changing the handle_bytes value of a     file handle during the execution of this function     (bnc#915517).

  - CVE-2015-4700: A local user could have created a bad     instruction in the JIT processed BPF code, leading to a     kernel crash (bnc#935705).

  - CVE-2015-1805: The (1) pipe_read and (2) pipe_write     implementations in fs/pipe.c in the Linux kernel did not     properly consider the side effects of failed
    __copy_to_user_inatomic and __copy_from_user_inatomic     calls, which allowed local users to cause a denial of     service (system crash) or possibly gain privileges via a     crafted application, aka an 'I/O vector array overrun'     (bnc#933429).

  - CVE-2015-3331: The __driver_rfc4106_decrypt function in     arch/x86/crypto/aesni-intel_glue.c in the Linux kernel     did not properly determine the memory locations used for     encrypted data, which allowed context-dependent     attackers to cause a denial of service (buffer overflow     and system crash) or possibly execute arbitrary code by     triggering a crypto API call, as demonstrated by use of     a libkcapi test program with an AF_ALG(aead) socket     (bnc#927257).

  - CVE-2015-2922: 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     allowed remote attackers to reconfigure a hop-limit     setting via a small hop_limit value in a Router     Advertisement (RA) message (bnc#922583).

  - CVE-2015-2041: net/llc/sysctl_net_llc.c in the Linux     kernel used an incorrect data type in a sysctl table,     which allowed local users to obtain potentially     sensitive information from kernel memory or possibly     have unspecified other impact by accessing a sysctl     entry (bnc#919007).

  - CVE-2015-3636: The ping_unhash function in     net/ipv4/ping.c in the Linux kernel did not initialize a     certain list data structure during an unhash operation,     which allowed local users to gain privileges or cause a     denial of service (use-after-free and system crash) by     leveraging the ability to make a SOCK_DGRAM socket     system call for the IPPROTO_ICMP or IPPROTO_ICMPV6     protocol, and then making a connect system call after a     disconnect (bnc#929525).

  - CVE-2014-8086: Race condition in the     ext4_file_write_iter function in fs/ext4/file.c in the     Linux kernel allowed local users to cause a denial of     service (file unavailability) via a combination of a     write action and an F_SETFL fcntl operation for the     O_DIRECT flag (bnc#900881).

  - CVE-2014-8159: The InfiniBand (IB) implementation in the     Linux kernel did not properly restrict use of User Verbs     for registration of memory regions, which allowed local     users to access arbitrary physical memory locations, and     consequently cause a denial of service (system crash) or     gain privileges, by leveraging permissions on a uverbs     device under /dev/infiniband/ (bnc#914742).

  - CVE-2014-9683: Off-by-one error in the     ecryptfs_decode_from_filename function in     fs/ecryptfs/crypto.c in the eCryptfs subsystem in the     Linux kernel allowed local users to cause a denial of     service (buffer overflow and system crash) or possibly     gain privileges via a crafted filename (bnc#918333).

  - CVE-2015-2042: net/rds/sysctl.c in the Linux kernel used     an incorrect data type in a sysctl table, which allowed     local users to obtain potentially sensitive information     from kernel memory or possibly have unspecified other     impact by accessing a sysctl entry (bnc#919018).

  - CVE-2015-1421: Use-after-free vulnerability in the     sctp_assoc_update function in net/sctp/associola.c in     the Linux kernel allowed remote attackers to cause a     denial of service (slab corruption and panic) or     possibly have unspecified other impact by triggering an     INIT collision that leads to improper handling of     shared-key data (bnc#915577).

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 ping_unhash function in net/ipv4/ping.c in the Linux kernel before 4.0.3 does not initialize a certain list data structure during an unhash operation, which allows local users to gain privileges or cause a denial of service (use-after-free and system crash) by leveraging the ability to make a SOCK_DGRAM socket system call for the IPPROTO_ICMP or IPPROTO_ICMPV6 protocol, and then making a connect system call after a disconnect. (CVE-2015-3636)

Impact

A locally authenticated user, with a role that allows advanced shell access, may be able to escalate privileges or cause a denial-of-service (DoS) attack.

The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2017-0057 for details.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
85764	SUSE SLES11 Security Update : kernel (SUSE-SU-2015:1478-1)	Nessus	SuSE Local Security Checks	2015/9/3	2021/1/19	medium
85857	F5 Networks BIG-IP : Linux kernel vulnerability (K17246)	Nessus	F5 Networks Local Security Checks	2015/9/9	2021/3/10	medium
99163	OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0057) (Dirty COW)	Nessus	OracleVM Local Security Checks	2017/4/3	2025/12/26	critical

检测

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medium

medium

critical