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- CVEs with nessus.description==USN-3741-1 introduced mitigations in the Linux kernel for Ubuntu 14.04
LTS to address L1 Terminal Fault (L1TF) vulnerabilities
(CVE-2018-3620, CVE-2018-3646). Unfortunately, the update introduced
regressions that caused kernel panics when booting in some
environments as well as preventing Java applications from starting.
This update fixes the problems.
We apologize for the inconvenience.
Original advisory details :
It was discovered that memory present in the L1 data cache of an Intel
CPU core may be exposed to a malicious process that is executing on
the CPU core. This vulnerability is also known as L1 Terminal Fault
(L1TF). A local attacker in a guest virtual machine could use this to
expose sensitive information (memory from other guests or the host
OS). (CVE-2018-3646)
It was discovered that memory present in the L1 data cache
of an Intel CPU core may be exposed to a malicious process
that is executing on the CPU core. This vulnerability is
also known as L1 Terminal Fault (L1TF). A local attacker
could use this to expose sensitive information (memory from
the kernel or other processes). (CVE-2018-3620)
Juha-Matti Tilli discovered that the TCP implementation in
the Linux kernel performed algorithmically expensive
operations in some situations when handling incoming
packets. A remote attacker could use this to cause a denial
of service. (CVE-2018-5390)
Juha-Matti Tilli discovered that the IP implementation in
the Linux kernel performed algorithmically expensive
operations in some situations when handling incoming packet
fragments. A remote attacker could use this to cause a
denial of service. (CVE-2018-5391).
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.
Max CVSS | 0 |
Min CVSS | 0 |
Total Count | 2 |
| ID | CVSS | Summary | Last (major) update | Published |
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