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XEN : Security Vulnerabilities Published In 2012 (Denial Of Service)

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2012-6333 399 DoS 2012-12-13 2013-10-10
4.7
None Local Medium Not required None None Complete
Multiple HVM control operations in Xen 3.4 through 4.2 allow local HVM guest OS administrators to cause a denial of service (physical CPU consumption) via a large input.
2 CVE-2012-6036 264 DoS Exec Code Mem. Corr. 2012-11-23 2013-10-10
4.4
None Local Medium Not required Partial Partial Partial
The (1) memc_save_get_next_page, (2) tmemc_restore_put_page and (3) tmemc_restore_flush_page functions in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 do not check for negative id pools, which allows local guest OS users to cause a denial of service (memory corruption and host crash) or possibly execute arbitrary code via unspecified vectors. NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
3 CVE-2012-6035 20 DoS Exec Code Mem. Corr. 2012-11-23 2013-10-10
6.9
None Local Medium Not required Complete Complete Complete
The do_tmem_destroy_pool function in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 does not properly validate pool ids, which allows local guest OS users to cause a denial of service (memory corruption and host crash) or execute arbitrary code via unspecified vectors. NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
4 CVE-2012-6034 20 DoS Exec Code Mem. Corr. 2012-11-23 2013-10-10
4.4
None Local Medium Not required Partial Partial Partial
The (1) tmemc_save_get_next_page and (2) tmemc_save_get_next_inv functions and the (3) TMEMC_SAVE_GET_POOL_UUID sub-operation in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 "do not check incoming guest output buffer pointers," which allows local guest OS users to cause a denial of service (memory corruption and host crash) or execute arbitrary code via unspecified vectors. NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
5 CVE-2012-6032 189 DoS Overflow Mem. Corr. 2012-11-23 2013-10-10
4.9
None Local Low Not required None None Complete
Multiple integer overflows in the (1) tmh_copy_from_client and (2) tmh_copy_to_client functions in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (memory corruption and host crash) via unspecified vectors. NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
6 CVE-2012-6031 20 DoS 2012-11-23 2013-10-10
4.7
None Local Medium Not required None None Complete
The do_tmem_get function in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (CPU hang and host crash) via unspecified vectors related to a spinlock being held in the "bad_copy error path." NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
7 CVE-2012-6030 20 DoS 2012-11-23 2013-10-10
7.2
None Local Low Not required Complete Complete Complete
The do_tmem_op function in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (host crash) and possibly have other unspecified impacts via unspecified vectors related to "broken locking checks" in an "error path." NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
8 CVE-2012-5525 DoS 2012-12-13 2013-10-10
4.7
None Local Medium Not required None None Complete
The get_page_from_gfn hypercall function in Xen 4.2 allows local PV guest OS administrators to cause a denial of service (crash) via a crafted GFN that triggers a buffer over-read.
9 CVE-2012-5515 DoS 2012-12-13 2013-10-10
4.7
None Local Medium Not required None None Complete
The (1) XENMEM_decrease_reservation, (2) XENMEM_populate_physmap, and (3) XENMEM_exchange hypercalls in Xen 4.2 and earlier allow local guest administrators to cause a denial of service (long loop and hang) via a crafted extent_order value.
10 CVE-2012-5514 DoS 2012-12-13 2013-10-10
4.7
None Local Medium Not required None None Complete
The guest_physmap_mark_populate_on_demand function in Xen 4.2 and earlier does not properly unlock the subject GFNs when checking if they are in use, which allows local guest HVM administrators to cause a denial of service (hang) via unspecified vectors.
11 CVE-2012-5513 20 DoS +Priv 2012-12-13 2013-10-10
6.9
None Local Medium Not required Complete Complete Complete
The XENMEM_exchange handler in Xen 4.2 and earlier does not properly check the memory address, which allows local PV guest OS administrators to cause a denial of service (crash) or possibly gain privileges via unspecified vectors that overwrite memory in the hypervisor reserved range.
12 CVE-2012-5511 119 DoS Overflow 2012-12-13 2013-10-10
4.7
None Local Medium Not required None None Complete
Stack-based buffer overflow in the dirty video RAM tracking functionality in Xen 3.4 through 4.1 allows local HVM guest OS administrators to cause a denial of service (crash) via a large bitmap image.
13 CVE-2012-5510 DoS 2012-12-13 2013-10-10
4.7
None Local Medium Not required None None Complete
Xen 4.x, when downgrading the grant table version, does not properly remove the status page from the tracking list when freeing the page, which allows local guest OS administrators to cause a denial of service (hypervisor crash) via unspecified vectors.
14 CVE-2012-4544 20 DoS 2012-10-31 2014-03-26
2.1
None Local Low Not required None None Partial
The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk (1) before or (2) after decompression, which allows local guest administrators to cause a denial of service (domain 0 memory consumption) via a crafted (a) kernel or (b) ramdisk.
15 CVE-2012-4539 399 DoS 2012-11-21 2013-10-10
2.1
None Local Low Not required None None Partial
Xen 4.0 through 4.2, when running 32-bit x86 PV guests on 64-bit hypervisors, allows local guest OS administrators to cause a denial of service (infinite loop and hang or crash) via invalid arguments to GNTTABOP_get_status_frames, aka "Grant table hypercall infinite loop DoS vulnerability."
16 CVE-2012-4538 20 DoS 2012-11-24 2013-10-10
4.9
None Local Low Not required None None Complete
The HVMOP_pagetable_dying hypercall in Xen 4.0, 4.1, and 4.2 does not properly check the pagetable state when running on shadow pagetables, which allows a local HVM guest OS to cause a denial of service (hypervisor crash) via unspecified vectors.
17 CVE-2012-4537 16 DoS 2012-11-21 2013-10-10
2.1
None Local Low Not required None None Partial
Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the set_p2m_entry function fails, which allows local HVM guest OS administrators to cause a denial of service (memory consumption and assertion failure), aka "Memory mapping failure DoS vulnerability."
18 CVE-2012-4536 DoS 2012-11-21 2013-10-10
2.1
None Local Low Not required None None Partial
The (1) domain_pirq_to_emuirq and (2) physdev_unmap_pirq functions in Xen 2.2 allows local guest OS administrators to cause a denial of service (Xen crash) via a crafted pirq value that triggers an out-of-bounds read.
19 CVE-2012-4535 399 DoS 2012-11-21 2013-10-10
1.9
None Local Medium Not required None None Partial
Xen 3.4 through 4.2, and possibly earlier versions, allows local guest OS administrators to cause a denial of service (Xen infinite loop and physical CPU consumption) by setting a VCPU with an "inappropriate deadline."
20 CVE-2012-3516 264 DoS +Priv 2012-11-23 2013-01-31
6.9
None Local Medium Not required Complete Complete Complete
The GNTTABOP_swap_grant_ref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of service (host crash) and possibly gain privileges via a crafted grant reference that triggers a write to an arbitrary hypervisor memory location.
21 CVE-2012-3498 20 DoS 2012-11-23 2013-10-10
5.6
None Local Low Not required Partial None Complete
PHYSDEVOP_map_pirq in Xen 4.1 and 4.2 and Citrix XenServer 6.0.2 and earlier allows local HVM guest OS kernels to cause a denial of service (host crash) and possibly read hypervisor or guest memory via vectors related to a missing range check of map->index.
22 CVE-2012-3497 20 DoS Mem. Corr. 2012-11-23 2013-10-10
6.9
None Local Medium Not required Complete Complete Complete
(1) TMEMC_SAVE_GET_CLIENT_WEIGHT, (2) TMEMC_SAVE_GET_CLIENT_CAP, (3) TMEMC_SAVE_GET_CLIENT_FLAGS and (4) TMEMC_SAVE_END in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (NULL pointer dereference or memory corruption and host crash) or possibly have other unspecified impacts via a NULL client id.
23 CVE-2012-3496 16 DoS 2012-11-23 2013-10-10
4.7
None Local Medium Not required None None Complete
XENMEM_populate_physmap in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when translating paging mode is not used, allows local PV OS guest kernels to cause a denial of service (BUG triggered and host crash) via invalid flags such as MEMF_populate_on_demand.
24 CVE-2012-3495 20 DoS +Priv 2012-11-23 2013-10-10
6.1
None Local Low Not required Partial Partial Complete
The physdev_get_free_pirq hypercall in arch/x86/physdev.c in Xen 4.1.x and Citrix XenServer 6.0.2 and earlier uses the return value of the get_free_pirq function as an array index without checking that the return value indicates an error, which allows guest OS users to cause a denial of service (invalid memory write and host crash) and possibly gain privileges via unspecified vectors.
25 CVE-2012-3494 264 DoS 2012-11-23 2013-10-10
2.1
None Local Low Not required None None Partial
The set_debugreg hypercall in include/asm-x86/debugreg.h in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when running on x86-64 systems, allows local OS guest users to cause a denial of service (host crash) by writing to the reserved bits of the DR7 debug control register.
26 CVE-2012-3433 399 DoS 2012-11-24 2013-10-10
4.9
None Local Low Not required None None Complete
Xen 4.0 and 4.1 allows local HVM guest OS kernels to cause a denial of service (domain 0 VCPU hang and kernel panic) by modifying the physical address space in a way that triggers excessive shared page search time during the p2m teardown.
27 CVE-2012-3432 264 DoS 2012-12-03 2013-10-10
1.9
None Local Medium Not required None None Partial
The handle_mmio function in arch/x86/hvm/io.c in the MMIO operations emulator for Xen 3.3 and 4.x, when running an HVM guest, does not properly reset certain state information between emulation cycles, which allows local guest OS users to cause a denial of service (guest OS crash) via unspecified operations on MMIO regions.
28 CVE-2012-2934 DoS 2012-12-03 2013-10-10
1.9
None Local Medium Not required None None Partial
Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly protect against a certain AMD processor bug, which allows local guest OS users to cause a denial of service (host hang) via sequential execution of instructions across a non-canonical boundary, a different vulnerability than CVE-2012-0217.
29 CVE-2012-2625 20 DoS 2012-10-31 2013-08-26
2.7
None Local Network Low Single system None None Partial
The PyGrub boot loader in Xen unstable before changeset 25589:60f09d1ab1fe, 4.2.x, and 4.1.x allows local para-virtualized guest users to cause a denial of service (memory consumption) via a large (1) bzip2 or (2) lzma compressed kernel image.
30 CVE-2012-0218 DoS 2012-12-03 2013-10-10
1.9
None Local Medium Not required None None Partial
Xen 3.4, 4.0, and 4.1, when the guest OS has not registered a handler for a syscall or sysenter instruction, does not properly clear a flag for exception injection when injecting a General Protection Fault, which allows local PV guest OS users to cause a denial of service (guest crash) by later triggering an exception that would normally be handled within Xen.
31 CVE-2011-3131 399 DoS 2012-12-13 2012-12-13
4.6
None Local Low Single system None None Complete
Xen 4.1.1 and earlier allows local guest OS kernels with control of a PCI[E] device to cause a denial of service (CPU consumption and host hang) via many crafted DMA requests that are denied by the IOMMU, which triggers a livelock.
Total number of vulnerabilities : 31   Page : 1 (This Page)
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