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Linux : Security Vulnerabilities Published In 2017 (Bypass)

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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-2017-1000410 200 Bypass +Info 2017-12-07 2018-05-09
5.0
None Remote Low Not required Partial None None
The Linux kernel version 3.3-rc1 and later is affected by a vulnerability lies in the processing of incoming L2CAP commands - ConfigRequest, and ConfigResponse messages. This info leak is a result of uninitialized stack variables that may be returned to an attacker in their uninitialized state. By manipulating the code flows that precede the handling of these configuration messages, an attacker can also gain some control over which data will be held in the uninitialized stack variables. This can allow him to bypass KASLR, and stack canaries protection - as both pointers and stack canaries may be leaked in this manner. Combining this vulnerability (for example) with the previously disclosed RCE vulnerability in L2CAP configuration parsing (CVE-2017-1000251) may allow an attacker to exploit the RCE against kernels which were built with the above mitigations. These are the specifics of this vulnerability: In the function l2cap_parse_conf_rsp and in the function l2cap_parse_conf_req the following variable is declared without initialization: struct l2cap_conf_efs efs; In addition, when parsing input configuration parameters in both of these functions, the switch case for handling EFS elements may skip the memcpy call that will write to the efs variable: ... case L2CAP_CONF_EFS: if (olen == sizeof(efs)) memcpy(&efs, (void *)val, olen); ... The olen in the above if is attacker controlled, and regardless of that if, in both of these functions the efs variable would eventually be added to the outgoing configuration request that is being built: l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS, sizeof(efs), (unsigned long) &efs); So by sending a configuration request, or response, that contains an L2CAP_CONF_EFS element, but with an element length that is not sizeof(efs) - the memcpy to the uninitialized efs variable can be avoided, and the uninitialized variable would be returned to the attacker (16 bytes).
2 CVE-2017-1000377 119 Overflow Bypass 2017-06-19 2017-07-05
4.6
None Local Low Not required Partial Partial Partial
An issue was discovered in the size of the default stack guard page on PAX Linux (originally from GRSecurity but shipped by other Linux vendors), specifically the default stack guard page is not sufficiently large and can be "jumped" over (the stack guard page is bypassed), this affects PAX Linux Kernel versions as of June 19, 2017 (specific version information is not available at this time).
3 CVE-2017-1000365 264 Bypass 2017-06-19 2017-11-03
7.2
Admin Local Low Not required Complete Complete Complete
The Linux Kernel imposes a size restriction on the arguments and environmental strings passed through RLIMIT_STACK/RLIM_INFINITY (1/4 of the size), but does not take the argument and environment pointers into account, which allows attackers to bypass this limitation. This affects Linux Kernel versions 4.11.5 and earlier. It appears that this feature was introduced in the Linux Kernel version 2.6.23.
4 CVE-2017-1000364 119 Overflow Bypass 2017-06-19 2018-06-14
6.2
None Local High Not required Complete Complete Complete
An issue was discovered in the size of the stack guard page on Linux, specifically a 4k stack guard page is not sufficiently large and can be "jumped" over (the stack guard page is bypassed), this affects Linux Kernel versions 4.11.5 and earlier (the stackguard page was introduced in 2010).
5 CVE-2017-17450 254 Bypass 2017-12-06 2018-04-24
4.6
None Local Low Not required Partial Partial Partial
net/netfilter/xt_osf.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for add_callback and remove_callback operations, which allows local users to bypass intended access restrictions because the xt_osf_fingers data structure is shared across all net namespaces.
6 CVE-2017-17448 254 Bypass 2017-12-06 2018-04-24
4.6
None Local Low Not required Partial Partial Partial
net/netfilter/nfnetlink_cthelper.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for new, get, and del operations, which allows local users to bypass intended access restrictions because the nfnl_cthelper_list data structure is shared across all net namespaces.
7 CVE-2017-14954 200 Bypass +Info 2017-10-01 2017-10-06
2.1
None Local Low Not required Partial None None
The waitid implementation in kernel/exit.c in the Linux kernel through 4.13.4 accesses rusage data structures in unintended cases, which allows local users to obtain sensitive information, and bypass the KASLR protection mechanism, via a crafted system call.
8 CVE-2017-13695 200 Bypass +Info 2017-08-25 2018-09-11
2.1
None Local Low Not required Partial None None
The acpi_ns_evaluate() function in drivers/acpi/acpica/nseval.c in the Linux kernel through 4.12.9 does not flush the operand cache and causes a kernel stack dump, which allows local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism (in the kernel through 4.9) via a crafted ACPI table.
9 CVE-2017-13694 200 Bypass +Info 2017-08-25 2017-09-20
2.1
None Local Low Not required Partial None None
The acpi_ps_complete_final_op() function in drivers/acpi/acpica/psobject.c in the Linux kernel through 4.12.9 does not flush the node and node_ext caches and causes a kernel stack dump, which allows local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism (in the kernel through 4.9) via a crafted ACPI table.
10 CVE-2017-13693 200 Bypass +Info 2017-08-25 2017-09-20
4.9
None Local Low Not required Complete None None
The acpi_ds_create_operands() function in drivers/acpi/acpica/dsutils.c in the Linux kernel through 4.12.9 does not flush the operand cache and causes a kernel stack dump, which allows local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism (in the kernel through 4.9) via a crafted ACPI table.
11 CVE-2017-11472 284 Bypass +Info 2017-07-20 2018-08-24
3.6
None Local Low Not required Partial Partial None
The acpi_ns_terminate() function in drivers/acpi/acpica/nsutils.c in the Linux kernel before 4.12 does not flush the operand cache and causes a kernel stack dump, which allows local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism (in the kernel through 4.9) via a crafted ACPI table.
12 CVE-2017-7889 284 Bypass 2017-04-16 2018-06-19
7.2
None Local Low Not required Complete Complete Complete
The mm subsystem in the Linux kernel through 4.10.10 does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allows local users to read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c.
13 CVE-2017-5669 264 Bypass 2017-02-24 2018-03-15
4.6
None Local Low Not required Partial Partial Partial
The do_shmat function in ipc/shm.c in the Linux kernel through 4.9.12 does not restrict the address calculated by a certain rounding operation, which allows local users to map page zero, and consequently bypass a protection mechanism that exists for the mmap system call, by making crafted shmget and shmat system calls in a privileged context.
14 CVE-2017-0528 264 Exec Code Bypass 2017-03-07 2017-07-17
9.3
None Remote Medium Not required Complete Complete Complete
An elevation of privilege vulnerability in the kernel security subsystem could enable a local malicious application to to execute code in the context of a privileged process. This issue is rated as High because it is a general bypass for a kernel level defense in depth or exploit mitigation technology. Product: Android. Versions: Kernel-3.18. Android ID: A-33351919.
15 CVE-2017-0455 200 Exec Code Bypass +Info 2017-03-07 2017-07-17
9.3
None Remote Medium Not required Complete Complete Complete
An information disclosure vulnerability in the Qualcomm bootloader could help to enable a local malicious application to to execute arbitrary code within the context of the bootloader. This issue is rated as High because it is a general bypass for a bootloader level defense in depth or exploit mitigation technology. Product: Android. Versions: Kernel-3.18. Android ID: A-32370952. References: QC-CR#1082755.
16 CVE-2016-10044 264 +Priv Bypass 2017-02-07 2017-07-24
7.2
None Local Low Not required Complete Complete Complete
The aio_mount function in fs/aio.c in the Linux kernel before 4.7.7 does not properly restrict execute access, which makes it easier for local users to bypass intended SELinux W^X policy restrictions, and consequently gain privileges, via an io_setup system call.
17 CVE-2016-8438 190 Overflow Bypass 2017-01-12 2017-01-17
10.0
None Remote Low Not required Complete Complete Complete
Integer overflow leading to a TOCTOU condition in hypervisor PIL. An integer overflow exposes a race condition that may be used to bypass (Peripheral Image Loader) PIL authentication. Product: Android. Versions: Kernel 3.18. Android ID: A-31624565. References: QC-CR#1023638.
Total number of vulnerabilities : 17   Page : 1 (This Page)
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