Yes, but older distros were dual signed with that key. So it should be
still shipped.
** Changed in: ubuntu-keyring (Ubuntu)
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/1786471
Title:
remove 1024D keys from ubuntu-keyring on older LTS
Status in ubuntu-keyring package in Ubuntu:
Won't Fix
Bug description:
Zesty and later (LP: #1363482) are no longer shipping with 1024D keys
but older LTS releases (Trusty/Xenial) still trust those weak keys:
$ lsb_release -sc
xenial
$ apt-key list
/etc/apt/trusted.gpg
--------------------
pub 1024D/437D05B5 2004-09-12
uid Ubuntu Archive Automatic Signing Key
<ftpmas...@ubuntu.com>
sub 2048g/79164387 2004-09-12
pub 4096R/C0B21F32 2012-05-11
uid Ubuntu Archive Automatic Signing Key (2012)
<ftpmas...@ubuntu.com>
pub 4096R/EFE21092 2012-05-11
uid Ubuntu CD Image Automatic Signing Key (2012)
<cdim...@ubuntu.com>
pub 1024D/FBB75451 2004-12-30
uid Ubuntu CD Image Automatic Signing Key
<cdim...@ubuntu.com>
On Xenial, I found no problem after deleting the 2 1024D keys:
$ sudo apt-key del FBB75451
$ sudo apt-key del 437D05B5
$ sudo apt-get -qq update
$ echo $? # returned 0
On Trusty, it seems that removing the key 437D05B5 leads to warnings
due to the double-signing:
$ sudo apt-key del FBB75451
$ sudo apt-key del 437D05B5
$ sudo apt-get -qq update
W: There is no public key available for the following key IDs:
40976EAF437D05B5
W: There is no public key available for the following key IDs:
40976EAF437D05B5
W: There is no public key available for the following key IDs:
40976EAF437D05B5
$ echo $? # returned 0
It seems that "apt-get update" is still happy as it can validate using
the stronger key.
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