==========================================================================
Ubuntu Security Notice USN-6920-1
July 29, 2024<\/p>\n
edk2 vulnerabilities
==========================================================================<\/p>\n
A security issue affects these releases of Ubuntu and its derivatives:<\/p>\n
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS<\/p>\n
Summary:<\/p>\n
Several security issues were fixed in EDK II.<\/p>\n
Software Description:
– edk2: UEFI firmware for virtual machines<\/p>\n
Details:<\/p>\n
It was discovered that EDK II was not properly performing bounds checks
in Tianocompress, which could lead to a buffer overflow. An authenticated
user could use this issue to potentially escalate their privileges via
local access. (CVE-2017-5731)<\/p>\n
It was discovered that EDK II had an insufficient memory write check in
the SMM service, which could lead to a page fault occurring. An
authenticated user could use this issue to potentially escalate their
privileges, disclose information and\/or create a denial of service via
local access. (CVE-2018-12182)<\/p>\n
It was discovered that EDK II incorrectly handled memory in DxeCore, which
could lead to a stack overflow. An unauthenticated user could this
issue to potentially escalate their privileges, disclose information
and\/or create a denial of service via local access. This issue only
affected Ubuntu 18.04 LTS. (CVE-2018-12183)<\/p>\n
It was discovered that EDK II incorrectly handled memory in the
Variable service under certain circumstances. An authenticated user could
use this issue to potentially escalate their privileges, disclose
information and\/or create a denial of service via local access.
(CVE-2018-3613)<\/p>\n
It was discovered that EDK II incorrectly handled memory in its system
firmware, which could lead to a buffer overflow. An unauthenticated user
could use this issue to potentially escalate their privileges and\/or
create a denial of service via network access. This issue only affected
Ubuntu 18.04 LTS. (CVE-2019-0160)<\/p>\n
Update instructions:<\/p>\n
The problem can be corrected by updating your system to the following
package versions:<\/p>\n
Ubuntu 18.04 LTS
ovmf 0~20180205.c0d9813c-2ubuntu0.3+esm1
Available with Ubuntu Pro
qemu-efi 0~20180205.c0d9813c-2ubuntu0.3+esm1
Available with Ubuntu Pro
qemu-efi-aarch64 0~20180205.c0d9813c-2ubuntu0.3+esm1
Available with Ubuntu Pro
qemu-efi-arm 0~20180205.c0d9813c-2ubuntu0.3+esm1
Available with Ubuntu Pro<\/p>\n
Ubuntu 16.04 LTS
ovmf 0~20160408.ffea0a2c-2ubuntu0.2+esm1
Available with Ubuntu Pro
qemu-efi 0~20160408.ffea0a2c-2ubuntu0.2+esm1
Available with Ubuntu Pro<\/p>\n
After a standard system update you need to restart the virtual machines
that use the affected firmware to make all the necessary changes.<\/p>\n
References:
https:\/\/ubuntu.com\/security\/notices\/USN-6920-1
CVE-2017-5731, CVE-2018-12182, CVE-2018-12183, CVE-2018-3613,
CVE-2019-0160<\/p>\n","protected":false},"excerpt":{"rendered":"
==========================================================================Ubuntu Security Notice USN-6920-1July 29, 2024 edk2 vulnerabilities========================================================================== A security issue affects these releases of Ubuntu and its derivatives: – Ubuntu 18.04 LTS– Ubuntu 16.04 LTS Summary: Several security issues were fixed in EDK II. Software Description:– edk2: UEFI firmware for virtual machines Details: It was discovered that EDK II was not properly performing bounds …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-58516","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/58516","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=58516"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/58516\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=58516"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=58516"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=58516"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}