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- CVEs with nessus.description==Several vulnerabilities have been discovered in the Linux kernel that
may lead to a privilege escalation, denial of service or information
leaks.
- CVE-2017-5754
Multiple researchers have discovered a vulnerability in
Intel processors, enabling an attacker controlling an
unprivileged process to read memory from arbitrary
addresses, including from the kernel and all other
processes running on the system.
This specific attack has been named Meltdown and is addressed in the
Linux kernel for the Intel x86-64 architecture by a patch set named
Kernel Page Table Isolation, enforcing a near complete separation of
the kernel and userspace address maps and preventing the attack.
This solution might have a performance impact, and can be disabled
at boot time by passing pti=off to the kernel command line.
- CVE-2017-8824
Mohamed Ghannam discovered that the DCCP implementation
did not correctly manage resources when a socket is
disconnected and reconnected, potentially leading to a
use-after-free. A local user could use this for denial
of service (crash or data corruption) or possibly for
privilege escalation. On systems that do not already
have the dccp module loaded, this can be mitigated by
disabling it:echo >> /etc/modprobe.d/disable-dccp.conf
install dccp false
- CVE-2017-15868
Al Viro found that the Bluebooth Network Encapsulation
Protocol (BNEP) implementation did not validate the type
of the second socket passed to the BNEPCONNADD ioctl(),
which could lead to memory corruption. A local user with
the CAP_NET_ADMIN capability can use this for denial of
service (crash or data corruption) or possibly for
privilege escalation.
- CVE-2017-16538
Andrey Konovalov reported that the dvb-usb-lmedm04 media
driver did not correctly handle some error conditions
during initialisation. A physically present user with a
specially designed USB device can use this to cause a
denial of service (crash).
- CVE-2017-16939
Mohamed Ghannam reported (through Beyond Security's
SecuriTeam Secure Disclosure program) that the IPsec
(xfrm) implementation did not correctly handle some
failure cases when dumping policy information through
netlink. A local user with the CAP_NET_ADMIN capability
can use this for denial of service (crash or data
corruption) or possibly for privilege escalation.
- CVE-2017-17448
Kevin Cernekee discovered that the netfilter subsystem
allowed users with the CAP_NET_ADMIN capability in any
user namespace, not just the root namespace, to enable
and disable connection tracking helpers. This could lead
to denial of service, violation of network security
policy, or have other impact.
- CVE-2017-17449
Kevin Cernekee discovered that the netlink subsystem
allowed users with the CAP_NET_ADMIN capability in any
user namespace to monitor netlink traffic in all net
namespaces, not just those owned by that user namespace.
This could lead to exposure of sensitive information.
- CVE-2017-17450
Kevin Cernekee discovered that the xt_osf module allowed
users with the CAP_NET_ADMIN capability in any user
namespace to modify the global OS fingerprint list.
- CVE-2017-17558
Andrey Konovalov reported that that USB core did not
correctly handle some error conditions during
initialisation. A physically present user with a
specially designed USB device can use this to cause a
denial of service (crash or memory corruption), or
possibly for privilege escalation.
- CVE-2017-17741
Dmitry Vyukov reported that the KVM implementation for
x86 would over-read data from memory when emulating an
MMIO write if the kvm_mmio tracepoint was enabled. A
guest virtual machine might be able to use this to cause
a denial of service (crash).
- CVE-2017-17805
It was discovered that some implementations of the
Salsa20 block cipher did not correctly handle
zero-length input. A local user could use this to cause
a denial of service (crash) or possibly have other
security impact.
- CVE-2017-17806
It was discovered that the HMAC implementation could be
used with an underlying hash algorithm that requires a
key, which was not intended. A local user could use this
to cause a denial of service (crash or memory
corruption), or possibly for privilege escalation.
- CVE-2017-17807
Eric Biggers discovered that the KEYS subsystem lacked a
check for write permission when adding keys to a
process's default keyring. A local user could use this
to cause a denial of service or to obtain sensitive
information.
- CVE-2017-1000407
Andrew Honig reported that the KVM implementation for
Intel processors allowed direct access to host I/O port
0x80, which is not generally safe. On some systems this
allows a guest VM to cause a denial of service (crash)
of the host.
- CVE-2017-1000410
Ben Seri reported that the Bluetooth subsystem did not
correctly handle short EFS information elements in L2CAP
messages. An attacker able to communicate over Bluetooth
could use this to obtain sensitive information from the
kernel.
Max CVSS | 0 |
Min CVSS | 0 |
Total Count | 2 |
| ID | CVSS | Summary | Last (major) update | Published |
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