openSUSE Security Update: Security update for shim ______________________________________________________________________________

Announcement ID: openSUSE-SU-2021:0598-1 Rating: important References: #1173411 #1174512 #1175509 #1177315 #1177404 #1177789 #1182057 #1184454 Cross-References: CVE-2019-14584 CVSS scores: CVE-2019-14584 (SUSE): 4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected Products: openSUSE Leap 15.2 ______________________________________________________________________________

An update that solves one vulnerability and has 7 fixes is now available.

Description:

This update for shim fixes the following issues:

- Updated openSUSE x86 signature

- Avoid the error message during linux system boot (boo#1184454) - Prevent the build id being added to the binary. That can cause issues with the signature

Update to 15.4 (boo#1182057)

+ Rename the SBAT variable and fix the self-check of SBAT + sbat: add more dprint() + arm/aa64: Swizzle some sections to make old sbsign happier + arm/aa64 targets: put .rel* and .dyn* in .rodata

- Change the SBAT variable name and enhance the handling of SBAT (boo#1182057)

Update to 15.3 for SBAT support (boo#1182057)

+ Drop gnu-efi from BuildRequires since upstream pull it into the - Generate vender-specific SBAT metadata + Add dos2unix to BuildRequires since Makefile requires it for vendor SBAT - Update dbx-cert.tar.xz and vendor-dbx.bin to block the following sign keys: + SLES-UEFI-SIGN-Certificate-2020-07.crt + openSUSE-UEFI-SIGN-Certificate-2020-07.crt - Check CodeSign in the signer's EKU (boo#1177315) - Fixed NULL pointer dereference in AuthenticodeVerify() (boo#1177789, CVE-2019-14584)

- All newly released openSUSE kernels enable kernel lockdown and signature verification, so there is no need to add the prompt anymore. - shim-install: Support changing default shim efi binary in /usr/etc/default/shim and /etc/default/shim (boo#1177315)

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 15.2:

zypper in -t patch openSUSE-2021-598=1

Package List:

- openSUSE Leap 15.2 (x86_64):

shim-15.4-lp152.4.8.1 shim-debuginfo-15.4-lp152.4.8.1 shim-debugsource-15.4-lp152.4.8.1

References:

https://www.suse.com/security/cve/CVE-2019-14584.html https://bugzilla.suse.com/1173411 https://bugzilla.suse.com/1174512 https://bugzilla.suse.com/1175509 https://bugzilla.suse.com/1177315 https://bugzilla.suse.com/1177404 https://bugzilla.suse.com/1177789 https://bugzilla.suse.com/1182057 https://bugzilla.suse.com/1184454