iucode-tool - Intel processor microcode tool

Property Value
Distribution Debian 10 (Buster)
Repository Debian Contrib i386
Package filename iucode-tool_2.3.1-1_i386.deb
Package name iucode-tool
Package version 2.3.1
Package release 1
Package architecture i386
Package type deb
Category contrib/utils
Homepage https://gitlab.com/iucode-tool
License -
Maintainer Henrique de Moraes Holschuh <hmh@debian.org>
Download size 61.20 KB
Installed size 110.00 KB
iucode_tool is a program to manipulate IntelĀ® X86 and X86-64 processor
microcode collections, and to use the kernel facilities to upgrade the
microcode on Intel system processors.
It can load microcode data files in text and binary format, sort, list and
filter the microcodes contained in these files, write selected microcodes to a
new file in binary format, or upload them to the kernel.
It operates on non-free microcode data downloaded directly from Intel or
installed by the intel-microcode package.


Package Version Architecture Repository
iucode-tool_2.3.1-1_amd64.deb 2.3.1 amd64 Debian Contrib
iucode-tool - - -


Name Value
libc6 >= 2.7


Type URL
Mirror ftp.br.debian.org
Binary Package iucode-tool_2.3.1-1_i386.deb
Source Package iucode-tool

Install Howto

  1. Update the package index:
    # sudo apt-get update
  2. Install iucode-tool deb package:
    # sudo apt-get install iucode-tool




2018-02-05 - Henrique de Moraes Holschuh <hmh@debian.org>
iucode-tool (2.3.1-1) unstable; urgency=medium
* New upstream bugfix release:
+ iucode_tool: fix filter by revision parser on i686
2018-01-28 - Henrique de Moraes Holschuh <hmh@debian.org>
iucode-tool (2.3-1) unstable; urgency=medium
* New upstream release:
+ Support revision-based matching in microcode update filters
+ Support exact --scan-system as a runtime option (before, it was a
compile-time option and disabled in Debian builds)
2017-08-28 - Henrique de Moraes Holschuh <hmh@debian.org>
iucode-tool (2.2-1) unstable; urgency=medium
* New upstream release:
+ README: update for mixed dat and bin Intel releases
+ README: add an example of microcode with multiple sigs
+ iucode_tool: fix microcode count when selecting extended signatures
+ build tooling changes
* debian/docs: ship upstream NEWS file.
* debian/control: build-depend on newer automake.
Upstream now requires automake 1.13 or newer.
* debian/copyright: add licenses for m4/
* debian/copyright: use https for format URL
* debian/{watch,upstream/signing-key.asc}: support upstream signature checking
* debian/control: bump standards version to 4.1.0
2017-06-18 - Henrique de Moraes Holschuh <hmh@debian.org>
iucode-tool (2.1.2-2) unstable; urgency=medium
* Upload to unstable
2017-02-15 - Henrique de Moraes Holschuh <hmh@debian.org>
iucode-tool (2.1.2-1) experimental; urgency=medium
* New upstream release:
+ iucode_tool: compare payloads of similar (not just duplicate) MCUs
+ iucode_tool: skip small files as if empty in the -tr loader
* Target experimental due to the freeze for the Debian "stretch" release
2017-01-13 - Henrique de Moraes Holschuh <hmh@debian.org>
iucode-tool (2.1.1-1) unstable; urgency=high
* New upstream release:
+ Fix heap buffer overflow on -tr loader (CVE-2017-0357)
* debian/copyright: update for new upstream release
2016-11-10 - Henrique de Moraes Holschuh <hmh@debian.org>
iucode-tool (2.1-1) unstable; urgency=medium
* New upstream release:
+ The early initramfs cpio archives created by iucode_tool are now
deterministic.  Instead of the current system time, the date of
the latest microcode included in the early initramfs will be used.
+ There is a new option to minimize the size of the early initramfs:
--mini-earlyfw.  This option causes iucode_tool to create a non-
standard cpio archive which is typically 736 bytes smaller.
WARNING: the microcode data file might not be visible to the
regular initramfs when this mode is used.
+ iucode-tool will now create valid early initramfs archives past
year 2038.
+ Change the strategy to add defensive padding to the early-initramfs
archive: add an empty directory entry to the cpio archive in order
to force the correct 16-byte alignment for the microcode data by
default.  For --mini-earlyfs, keep the old strategy of appending
extra NULs to the end of the microcode data file name.
* debian/control: correct build-depends versioning of autoconf, automake.
Correct the minimum required versions of autoconf and automake, which
were bumped by upstream version 2.0.
* debian/compat, rules, control: modernize and enable full hardening
+ update debian/rules copyright date
+ switch to dh-based simplified debian/rules (debhelper v9)
+ opt-in to full hardening for PIE and bindnow
As a side-effect, we now fully honor DEB_*_STRIP, etc.
* debian/watch: add uscan watch file.
Add a debian/watch uscan version 3 watchfile to automatically check the
newest iucode-tool release tarball version, using the "latest" branch of
the iucode/releases gitlab project.
* debian/changelog: fix typos on older entires.
* debian/copyright: switch to DEP-5 format.

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