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Bug 850535 (CVE-2021-3695, CVE-2021-3696, CVE-2021-3697, CVE-2022-28733, CVE-2022-28734, CVE-2022-28735, CVE-2022-28736, CVE-2022-28737) - <sys-boot/grub-2.06-r2: multiple vulnerabilities
Summary: <sys-boot/grub-2.06-r2: multiple vulnerabilities
Status: IN_PROGRESS
Alias: CVE-2021-3695, CVE-2021-3696, CVE-2021-3697, CVE-2022-28733, CVE-2022-28734, CVE-2022-28735, CVE-2022-28736, CVE-2022-28737
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal major (vote)
Assignee: Gentoo Security
URL: https://lists.gnu.org/archive/html/gr...
Whiteboard: A2 [stable]
Keywords:
Depends on: 850673
Blocks:
  Show dependency tree
 
Reported: 2022-06-07 19:33 UTC by John Helmert III
Modified: 2022-06-09 02:48 UTC (History)
3 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2022-06-07 19:33:53 UTC
Details at URL. Note that:

"Full mitigation against all CVEs will require updated shim with latest SBAT
(Secure Boot Advanced Targeting) [2] data provided by distros and vendors.
This time UEFI revocation list (dbx) will not be used and revocation of broken
artifacts will be done with SBAT only. For information on how to apply the
latest SBAT revocations, please see mokutil(1). Vendor shims may explicitly
permit known older boot artifacts to boot."

So I suppose we need an update for sys-boot/shim, too?
Comment 1 Larry the Git Cow gentoo-dev 2022-06-08 01:05:24 UTC
The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=7bbb9e2ce52ffd701c05daa3752f1fe11ec72f27

commit 7bbb9e2ce52ffd701c05daa3752f1fe11ec72f27
Author:     Mike Gilbert <floppym@gentoo.org>
AuthorDate: 2022-06-08 01:02:45 +0000
Commit:     Mike Gilbert <floppym@gentoo.org>
CommitDate: 2022-06-08 01:02:45 +0000

    sys-boot/grub: backport many patches
    
    Bug: https://bugs.gentoo.org/850535
    Closes: https://github.com/gentoo/gentoo/pull/25629
    Signed-off-by: Mike Gilbert <floppym@gentoo.org>

 sys-boot/grub/Manifest            |   1 +
 sys-boot/grub/grub-2.06-r2.ebuild | 319 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 320 insertions(+)
Comment 2 John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2022-06-08 15:33:15 UTC
Thank you! Please stabilize when ready.
Comment 3 Mike Gilbert gentoo-dev 2022-06-09 00:20:54 UTC
(In reply to John Helmert III from comment #0)
> So I suppose we need an update for sys-boot/shim, too?

I doubt there are many (any?) Gentoo users that attempt to use "secure boot" via sys-boot/shim.