Fixes CVEs :

CVE-2012-2123 CVE-2012-2121 CVE-2012-2119

Also fixes a boot regression on some Dell machines Linux 3.3.2

There was a regression at the DVB core, affecting applications that require the DVB status before having a lock. In order to allow a broader test (including my environment).

All new patches from the upstream media tree up to Apr, 10 got backported plus the fix patches, in order to have, among other things, the az6007 and af9035 drivers backported.

Various bugfixes.

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

Andy Adamson discovered a flaw in the Linux kernel's NFSv4 implementation. A remote NFS server (attacker) could exploit this flaw to cause a denial of service. (CVE-2011-4131)

A flaw was found in the Linux kernel's KVM (Kernel Virtual Machine) virtual cpu setup. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. (CVE-2012-1601)

A flaw was discovered in the Linux kernel's KVM (kernel virtual machine). An administrative user in the guest OS could leverage this flaw to cause a denial of service in the host OS. (CVE-2012-2121)

Steve Grubb reported a flaw with Linux fscaps (file system base capabilities) when used to increase the permissions of a process. For application on which fscaps are in use a local attacker can disable address space randomization to make attacking the process with raised privileges easier. (CVE-2012-2123)

Schacher Raindel discovered a flaw in the Linux kernel's memory handling when hugetlb is enabled. An unprivileged local attacker could exploit this flaw to cause a denial of service and potentially gain higher privileges. (CVE-2012-2133).

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

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2012:0743 advisory.

  - kernel: drm: integer overflow in drm_mode_dirtyfb_ioctl() (CVE-2012-0044)

  - kernel: thp:__split_huge_page() mapcount != page_mapcount BUG_ON() (CVE-2012-1179)

  - kernel: macvtap: zerocopy: vector length is not validated before pinning user pages (CVE-2012-2119)

  - kvm: device assignment page leak (CVE-2012-2121)

  - kernel: fcaps: clear the same personality flags as suid when fcaps are used (CVE-2012-2123)

  - kernel: net: insufficient data_len validation in sock_alloc_send_pskb() (CVE-2012-2136)

  - kernel: kvm: buffer overflow in kvm_set_irq() (CVE-2012-2137)

  - kernel: rds-ping cause kernel panic (CVE-2012-2372)

  - kernel: mm: read_pmd_atomic: 32bit PAE pmd walk vs pmd_populate SMP race condition (CVE-2012-2373)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - Fix bug number for commit 'cciss: Update HPSA_BOUNDARY'     (Joe Jin) [Orabug: 14681166]

  - cciss: Update HPSA_BOUNDARY. (Joe Jin) [Orabug:
    14319765]

  - KVM: introduce kvm_for_each_memslot macro (Maxim Uvarov)     [Bugdb: 13966]

  - dl2k: Clean up rio_ioctl (Jeff Mahoney) [Orabug:
    14126896] (CVE-2012-2313)

  - NFSv4: include bitmap in nfsv4 get acl data (Andy     Adamson) (CVE-2011-4131)

  - KVM: Fix buffer overflow in kvm_set_irq (Avi Kivity)     [Bugdb: 13966] (CVE-2012-2137)

  - net: sock: validate data_len before allocating skb in     sock_alloc_send_pskb (Jason Wang) [Bugdb: 13966]     (CVE-2012-2136)

  - mm: pmd_read_atomic: fix 32bit PAE pmd walk vs     pmd_populate SMP race condition (Andrea Arcangeli)     [Bugdb: 13966] (CVE-2012-2373)

  - KVM: lock slots_lock around device assignment (Alex     Williamson) [Bugdb: 13966] (CVE-2012-2121)

  - KVM: unmap pages from the iommu when slots are removed     (Maxim Uvarov) [Bugdb: 13966] (CVE-2012-2121)

  - fcaps: clear the same personality flags as suid when     fcaps are used (Eric Paris) [Bugdb: 13966]     (CVE-2012-2123)

  - tilegx: enable SYSCALL_WRAPPERS support (Chris Metcalf)     (CVE-2009-0029)

  - drm/i915: fix integer overflow in i915_gem_do_execbuffer     (Xi Wang) [Orabug: 14107456] (CVE-2012-2384)

  - drm/i915: fix integer overflow in i915_gem_execbuffer2     (Xi Wang) [Orabug: 14107445] (CVE-2012-2383)

  - [dm] do not forward ioctls from logical volumes to the     underlying device (Joe Jin) (CVE-2011-4127)

  - [block] fail SCSI passthrough ioctls on partition     devices (Joe Jin) (CVE-2011-4127)

  - [block] add and use scsi_blk_cmd_ioctl (Joe Jin)     [Orabug: 14056755] (CVE-2011-4127)

  - KVM: Ensure all vcpus are consistent with in-kernel     irqchip settings (Avi Kivity) [Bugdb: 13871]     (CVE-2012-1601)

  - regset: Return -EFAULT, not -EIO, on host-side memory     fault (H. Peter Anvin) (CVE-2012-1097)

  - regset: Prevent null pointer reference on readonly     regsets (H. Peter Anvin) (CVE-2012-1097)

  - cifs: fix dentry refcount leak when opening a FIFO on     lookup (Jeff Layton) (CVE-2012-1090)

  - mm: thp: fix pmd_bad triggering in code paths holding     mmap_sem read mode (Andrea Arcangeli) (CVE-2012-1179)

  - ext4: fix undefined behavior in ext4_fill_flex_info (Xi     Wang) (CVE-2009-4307)

  - ocfs2: clear unaligned io flag when dio fails (Junxiao     Bi) [Orabug: 14063941]

  - aio: make kiocb->private NUll in init_sync_kiocb     (Junxiao Bi) [Orabug: 14063941]

  - igb: Fix for Alt MAC Address feature on 82580 and later     devices (Carolyn Wyborny) [Orabug: 14258706]

  - igb: Alternate MAC Address Updates for Func2&3 (Akeem G.
    Abodunrin) [Orabug: 14258706]

  - igb: Alternate MAC Address EEPROM Updates (Akeem G.
    Abodunrin) [Orabug: 14258706]

  - cciss: only enable cciss_allow_hpsa when for ol5 (Joe     Jin) [Orabug: 14106006]

  - Revert 'cciss: remove controllers supported by hpsa'     (Joe Jin) [Orabug: 14106006]

  - [scsi] hpsa: add all support devices for ol5 (Joe Jin)     [Orabug: 14106006]

  - Disable VLAN 0 tagging for none VLAN traffic (Adnan     Misherfi) [Orabug: 14406424]

  - x86: Add Xen kexec control code size check to linker     script (Daniel Kiper)

  - drivers/xen: Export vmcoreinfo through sysfs (Daniel     Kiper)

  - x86/xen/enlighten: Add init and crash kexec/kdump hooks     (Maxim Uvarov)

  - x86/xen: Add kexec/kdump makefile rules (Daniel Kiper)

  - x86/xen: Add x86_64 kexec/kdump implementation (Daniel     Kiper)

  - x86/xen: Add placeholder for i386 kexec/kdump     implementation (Daniel Kiper)

  - x86/xen: Register resources required by kexec-tools     (Daniel Kiper)

  - x86/xen: Introduce architecture dependent data for     kexec/kdump (Daniel Kiper)

  - xen: Introduce architecture independent data for     kexec/kdump (Daniel Kiper)

  - x86/kexec: Add extra pointers to transition page table     PGD, PUD, PMD and PTE (Daniel Kiper)

  - kexec: introduce kexec_ops struct (Daniel Kiper)

  - SPEC: replace DEFAULTKERNEL from kernel-ovs to     kernel-uek

A flaw was discovered in the Linux kernel's KVM (kernel virtual machine). An administrative user in the guest OS could leverage this flaw to cause a denial of service in the host OS. (CVE-2012-2121)

Ben Hutchings reported a flaw in the Linux kernel with some network drivers that support TSO (TCP segment offload). A local or peer user could exploit this flaw to to cause a denial of service.
(CVE-2012-3412)

Jay Fenlason and Doug Ledford discovered a bug in the Linux kernel implementation of RDS sockets. A local unprivileged user could potentially use this flaw to read privileged information from the kernel. (CVE-2012-3430)

A flaw was discovered in the madvise feature of the Linux kernel's memory subsystem. An unprivileged local use could exploit the flaw to cause a denial of service (crash the system). (CVE-2012-3511)

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2012-0676 advisory.

    - CVE: CVE-2012-2121
    - Resolves: bz#814151       (CVE-2012-2121 kvm: device assignment page leak [rhel-5.8])
    - Resolves: bz#808205       (CVE-2012-1601 kernel: kvm: irqchip_in_kernel() and vcpu->arch.apic inconsistency [rhel-5.8.z])

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

A flaw was discovered in the Linux kernel's KVM (kernel virtual machine). An administrative user in the guest OS could leverage this flaw to cause a denial of service in the host OS. (CVE-2012-2121)

Multiple integer overflow flaws where discovered in the Alchemy LCD frame- buffer drivers in the Linux kernel. An unprivileged local user could exploit this flaw to gain administrative privileges.
(CVE-2013-4511).

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
58881	Fedora 15 : kernel-2.6.43.2-6.fc15 (2012-6406)	Nessus	Fedora Local Security Checks	2012/4/26	2021/1/11	high
59474	Ubuntu 10.04 LTS : linux-lts-backport-natty vulnerabilities (USN-1470-1)	Nessus	Ubuntu Local Security Checks	2012/6/13	2019/9/19	high
59562	RHEL 6 : kernel (RHSA-2012:0743)	Nessus	Red Hat Local Security Checks	2012/6/19	2024/4/27	high
79484	OracleVM 3.1 : kernel-uek (OVMSA-2012-0042)	Nessus	OracleVM Local Security Checks	2014/11/26	2021/1/4	high
59321	Ubuntu 11.04 : linux vulnerabilities (USN-1457-1)	Nessus	Ubuntu Local Security Checks	2012/6/1	2019/9/19	high
62238	USN-1577-1 : linux-ti-omap4 vulnerabilities	Nessus	Ubuntu Local Security Checks	2012/9/24	2016/12/1	high
68527	Oracle Linux 5 : kvm (ELSA-2012-0676)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2024/10/22	high
71204	Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-2037-1)	Nessus	Ubuntu Local Security Checks	2013/12/4	2019/9/19	medium

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