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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.3792 edk2 security, bug fix, and enhancement update 10 November 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: edk2 Publisher: Red Hat Operating System: Red Hat Impact/Access: Denial of Service -- Remote/Unauthenticated Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2021-23841 CVE-2021-23840 Reference: ASB-2021.0203 ASB-2021.0074 ESB-2021.3485 ESB-2021.3375 ESB-2021.3209 Original Bulletin: https://access.redhat.com/errata/RHSA-2021:4198 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: edk2 security, bug fix, and enhancement update Advisory ID: RHSA-2021:4198-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:4198 Issue date: 2021-11-09 CVE Names: CVE-2021-23840 CVE-2021-23841 ===================================================================== 1. Summary: An update for edk2 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream (v. 8) - noarch 3. Description: EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. The following packages have been upgraded to a later upstream version: edk2 (20210527gite1999b264f1f). (BZ#1846481, BZ#1938238) Security Fix(es): * openssl: integer overflow in CipherUpdate (CVE-2021-23840) * openssl: NULL pointer dereference in X509_issuer_and_serial_hash() (CVE-2021-23841) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1930310 - CVE-2021-23841 openssl: NULL pointer dereference in X509_issuer_and_serial_hash() 1930324 - CVE-2021-23840 openssl: integer overflow in CipherUpdate 1937564 - [RFE] support VCPU hot unplug in OVMF/edk2 1938238 - rebase edk2 to edk2-stable202105 for RHEL-8.5 1938257 - refresh OpenSSL bundled with edk2 for RHEL-8.5 1956837 - Additional build of edk2 without SMM (dual build / sub-package) for SEV-ES 1988762 - edk2 does not ignore PMBR protective record BootIndicator as required by UEFI spec 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): Source: edk2-20210527gite1999b264f1f-3.el8.src.rpm noarch: edk2-aarch64-20210527gite1999b264f1f-3.el8.noarch.rpm edk2-ovmf-20210527gite1999b264f1f-3.el8.noarch.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2021-23840 https://access.redhat.com/security/cve/CVE-2021-23841 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/ 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYYrc59zjgjWX9erEAQjPqw/+JHiIdDTQM4u5iWpjEP7liBGDt1382Vrp nfvkzD/rMO05X920SEIEbSyNg7FV3ApQz7Hl451BUWzweKqOsSMLRrp1UQmdH9JI MHFK1dv19vK0yyz8YcLTYy5BAF9hYWCv38Jsh87Dn0FPbArrODcIr6LQr5yKrFt8 40w808ONZehzF46SUMp+obBk5Gk5iwu7Fn10lmFDcYqIr0ZO70ubFddsZrpHnNGu uXIFh1+23Fq3IJX8eFIRgqj2mp/ynwNPYEPWcDc/Lf6SEESfe4kpLReO+hqgGncw yf0mPJAODcDYfHm0c1BsDOWOFwwle5j5zA6NBIkPJ754bwE7MChFAbX+QLD04SXx gr6WgibrQ3pu4GvJUsjgx7hypMlYoJH2qt3h+SxcQmCO2jsjkDeBx6uNKKBN34H6 gRLO34XjZBmZV2w/cNxW+m6jk3Vv2+We2MeJmZH6T8TOubeFYZhK1h129b3I9XQL GuN25pGmjCX8ODi0/UsLldpp25G/MjhMYf4mHGhdOQaJahfdEYVsDeSUHqTg3CHQ qDrkeyd3pkdMrNyAjV0i/XTYwEHglk6gd7wHAYeTkad/X42BnPEf2GT6MgtCwXZW E3pQU1DINASaaaBdbc1a/BElu9KZ2N4UzEiceLu9dpbQBv/42XwhpxkVN7tUOEdA biP4YfwJSoA= =gMnA - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYYtSXeNLKJtyKPYoAQghhg/8DKUViwA0v3/lpkNqTCHD6LQGnfV1+Ey4 nWyMPl/i11MG9otzlRwxOCWYPCaPtF1krL5sjpzTOeIlBJQ+JnXYk9VMZn/cf1S2 hkgKIBOaHSfXjqkkLvSbR9zpjCxm7BEhFkq8bBsFI5Z4z8Kog7GlxrvW6CKoBWuT 9W6xim7wGL9BP6hoQMRKNkIa4mFUAQwL3/S+1S+ki7jpSaYjLq5P32VdQmyylT1I Bx4lwV8ElwZBfiDEk855FgO5EecB4KSLfUk/BxrWMnQBLzL0yu41VvrZkCXAKxmD Q1yZMn0o0EZ3S32WL3MjbC2nZvOmqUl2hRo5bIllJGBeSC1R7h6qOUyk68E5CVEj iBmSYvrtRRkwEEqTWnAIDBYPUp/oEzDb0lWihtZNxZY3wgFlaLp0WfZvH7apclxW wNuhmXzgt2/yCr40laSzm/qkQidexKzjMSYRufoPvdCjOu2z4wTB56nwaca35vWZ HsslttL9uaDP9KYzqUN12JmOP9+9G8payYmQFit3ieyoOTgzPCoarbd8CHaHEsk4 cSqZ0hjQbYNEwlY2FVoPNCk+hZopo4DGtAG4RBXLIB0vY+uxMEkGsvhlmDULK5Ej BlANb5XA460mdYevOcU4pnlgpBOi7QgnDU43lgg4wTUy9uIUr4zLgzs4H4VoLnZv mvCEy55IKW0= =CuGQ -----END PGP SIGNATURE-----