Summary
USN-4255-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu
16.04 LTS.
It was discovered that the Linux kernel did not properly clear data
structures on context switches for certain Intel graphics processors. A
local attacker could use this to expose sensitive information.
(CVE-2019-14615)
It was discovered that a race condition can lead to a use-after-free while
destroying GEM contexts in the i915 driver for the Linux kernel. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2020-7053)
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 16.04 LTS 16.04:LTS | linux-aws-hwe | 4.15.0-1058.60~16.04.1 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-hwe | 4.15.0-76.86~16.04.1 |
Vulnerabilities 2
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Unscored —CVE-2019-14615 Public exploit
Insufficient control flow in certain data structures for some Intel(R) Processors with Intel(R) Processor Graphics may …
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Unscored —
In the Linux kernel 4.14 longterm through 4.14.165 and 4.19 longterm through 4.19.96 (and 5.x before 5.2), there is a u…