Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.3773 glib2 security and bug fix update 10 November 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: glib2 Publisher: Red Hat Operating System: Red Hat Impact/Access: Create Arbitrary Files -- Remote/Unauthenticated Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-28153 CVE-2021-3800 Reference: ESB-2021.0912 Original Bulletin: https://access.redhat.com/errata/RHSA-2021:4385 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: glib2 security and bug fix update Advisory ID: RHSA-2021:4385-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:4385 Issue date: 2021-11-09 CVE Names: CVE-2021-3800 CVE-2021-28153 ===================================================================== 1. Summary: An update for glib2 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 BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux CRB (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64 3. Description: GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, the main loop implementation, and a large set of utility functions for strings and common data structures. Security Fix(es): * glib2: Possible privilege escalation thourgh pkexec and aliases (CVE-2021-3800) * glib: g_file_replace() with G_FILE_CREATE_REPLACE_DESTINATION creates empty target for dangling symlink (CVE-2021-28153) 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/): 1938284 - CVE-2021-3800 glib2: Possible privilege escalation thourgh pkexec and aliases 1938291 - CVE-2021-28153 glib: g_file_replace() with G_FILE_CREATE_REPLACE_DESTINATION creates empty target for dangling symlink 1948988 - Refcounting issue causes crashes and slow workarounds 1971533 - MD5 HMAC computation should not cause glib to segfault in FIPS mode 6. Package List: Red Hat Enterprise Linux BaseOS (v. 8): Source: glib2-2.56.4-156.el8.src.rpm aarch64: glib2-2.56.4-156.el8.aarch64.rpm glib2-debuginfo-2.56.4-156.el8.aarch64.rpm glib2-debugsource-2.56.4-156.el8.aarch64.rpm glib2-devel-2.56.4-156.el8.aarch64.rpm glib2-devel-debuginfo-2.56.4-156.el8.aarch64.rpm glib2-fam-2.56.4-156.el8.aarch64.rpm glib2-fam-debuginfo-2.56.4-156.el8.aarch64.rpm glib2-tests-2.56.4-156.el8.aarch64.rpm glib2-tests-debuginfo-2.56.4-156.el8.aarch64.rpm ppc64le: glib2-2.56.4-156.el8.ppc64le.rpm glib2-debuginfo-2.56.4-156.el8.ppc64le.rpm glib2-debugsource-2.56.4-156.el8.ppc64le.rpm glib2-devel-2.56.4-156.el8.ppc64le.rpm glib2-devel-debuginfo-2.56.4-156.el8.ppc64le.rpm glib2-fam-2.56.4-156.el8.ppc64le.rpm glib2-fam-debuginfo-2.56.4-156.el8.ppc64le.rpm glib2-tests-2.56.4-156.el8.ppc64le.rpm glib2-tests-debuginfo-2.56.4-156.el8.ppc64le.rpm s390x: glib2-2.56.4-156.el8.s390x.rpm glib2-debuginfo-2.56.4-156.el8.s390x.rpm glib2-debugsource-2.56.4-156.el8.s390x.rpm glib2-devel-2.56.4-156.el8.s390x.rpm glib2-devel-debuginfo-2.56.4-156.el8.s390x.rpm glib2-fam-2.56.4-156.el8.s390x.rpm glib2-fam-debuginfo-2.56.4-156.el8.s390x.rpm glib2-tests-2.56.4-156.el8.s390x.rpm glib2-tests-debuginfo-2.56.4-156.el8.s390x.rpm x86_64: glib2-2.56.4-156.el8.i686.rpm glib2-2.56.4-156.el8.x86_64.rpm glib2-debuginfo-2.56.4-156.el8.i686.rpm glib2-debuginfo-2.56.4-156.el8.x86_64.rpm glib2-debugsource-2.56.4-156.el8.i686.rpm glib2-debugsource-2.56.4-156.el8.x86_64.rpm glib2-devel-2.56.4-156.el8.i686.rpm glib2-devel-2.56.4-156.el8.x86_64.rpm glib2-devel-debuginfo-2.56.4-156.el8.i686.rpm glib2-devel-debuginfo-2.56.4-156.el8.x86_64.rpm glib2-fam-2.56.4-156.el8.x86_64.rpm glib2-fam-debuginfo-2.56.4-156.el8.i686.rpm glib2-fam-debuginfo-2.56.4-156.el8.x86_64.rpm glib2-tests-2.56.4-156.el8.x86_64.rpm glib2-tests-debuginfo-2.56.4-156.el8.i686.rpm glib2-tests-debuginfo-2.56.4-156.el8.x86_64.rpm Red Hat Enterprise Linux CRB (v. 8): aarch64: glib2-debuginfo-2.56.4-156.el8.aarch64.rpm glib2-debugsource-2.56.4-156.el8.aarch64.rpm glib2-devel-debuginfo-2.56.4-156.el8.aarch64.rpm glib2-fam-debuginfo-2.56.4-156.el8.aarch64.rpm glib2-static-2.56.4-156.el8.aarch64.rpm glib2-tests-debuginfo-2.56.4-156.el8.aarch64.rpm noarch: glib2-doc-2.56.4-156.el8.noarch.rpm ppc64le: glib2-debuginfo-2.56.4-156.el8.ppc64le.rpm glib2-debugsource-2.56.4-156.el8.ppc64le.rpm glib2-devel-debuginfo-2.56.4-156.el8.ppc64le.rpm glib2-fam-debuginfo-2.56.4-156.el8.ppc64le.rpm glib2-static-2.56.4-156.el8.ppc64le.rpm glib2-tests-debuginfo-2.56.4-156.el8.ppc64le.rpm s390x: glib2-debuginfo-2.56.4-156.el8.s390x.rpm glib2-debugsource-2.56.4-156.el8.s390x.rpm glib2-devel-debuginfo-2.56.4-156.el8.s390x.rpm glib2-fam-debuginfo-2.56.4-156.el8.s390x.rpm glib2-static-2.56.4-156.el8.s390x.rpm glib2-tests-debuginfo-2.56.4-156.el8.s390x.rpm x86_64: glib2-debuginfo-2.56.4-156.el8.i686.rpm glib2-debuginfo-2.56.4-156.el8.x86_64.rpm glib2-debugsource-2.56.4-156.el8.i686.rpm glib2-debugsource-2.56.4-156.el8.x86_64.rpm glib2-devel-debuginfo-2.56.4-156.el8.i686.rpm glib2-devel-debuginfo-2.56.4-156.el8.x86_64.rpm glib2-fam-debuginfo-2.56.4-156.el8.i686.rpm glib2-fam-debuginfo-2.56.4-156.el8.x86_64.rpm glib2-static-2.56.4-156.el8.i686.rpm glib2-static-2.56.4-156.el8.x86_64.rpm glib2-tests-debuginfo-2.56.4-156.el8.i686.rpm glib2-tests-debuginfo-2.56.4-156.el8.x86_64.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-2021-3800 https://access.redhat.com/security/cve/CVE-2021-28153 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 iQIVAwUBYYrdwdzjgjWX9erEAQj1Ww//TA/kISfe8RjrOJ3//LZrFuwYWT/lYRvA azcyR6n+o/hSTHmAJ0ccc8y2SVdh/ukBI96cB8n4BKAYlZhbdXFm3btcItT8rpqP Cc0z1SIhna+nm8Kdo4eDmjgMUm96E+uKq2bgmxduLWjYfKr/AB0n25nSn1o9sdAl F2iL6vlgmVtfGfa3ODovzIDwas7udIlaRzjnAmA9QSnnQUfZhvsBJbWcMJWJxej9 SrT5lkwPXYJxyGuXN8MD+kfgwjyXS3G+Svv//YkBmuiYjqpQJghRe3YfHCeQ6ow6 NlMOs2ZgNVIN8c03mhpZj6vUIr2qO7LcfUZaKCdIoTbVZKZY1yPkLxQ63EEB/AnP 2pnAwybjS06Izr8JWjwGt/20+gsq1sGWKKU1T/yuLtj6kADbDrY/T6ApnBxF5ajD 6h6Q5UebLHX3p/ks8Kz4V+/hqHXjjWfqy9x16909n2TSwjuGeszqaNrQYjF3lwqt J04E3kWavzyHK5Gr4ZwuS/lLoTNfvWHLRY8GoySL6Wt2agLskbDTgqBoe1NptbT+ siyOCEMFaWC7g5dhzdAusTzHUUJnnLbZzypb1581Ie42A4un+x3F7epktk462WKl uXmc5Big8aODwsVuMd+foFkOD0JKmK8RcfT8W0WciRAPycj5yq009wavogQ/7AEa Kweg3HIZMNU= =C8A2 - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYYtHweNLKJtyKPYoAQg4Fg//X8IGEkbJYGlhQG/BReB27XA5GbPOHEqz HfNk4td70/w16BMHCDv2ees0pb6c2XC5EKP80ewg1VIdppfXskmD0aHY7AUulkd3 wGDFxcOPgvYemlXhwv2SGEmzkb7zRr/B8aB5wa250YKA2ZJ8b3/+eaFA4L0oxYPZ DQMjBIWo5ASU29+wPHq17ayt0MlxR/cNzwmM6/r4RiTC7vKx1bLGI+Lp1HxLowKU TrnFpCaQh86n5thHzMoR+SWletAuDlSPBujgPSc4ww4spVzNJGNrIhxsXXZKzG7A hJ0fxaun+Mx5MJPldamEud9K4tW5C3pOG4zUXJ55RlqRbh/gRAFWYLt9vPEgT1UJ XVa/pn2bwx4a2n3PXYfH2845AuAg7xbqnkoJA73TMhS/7t1AaBPi+gcKqla3dE6S hY02vKstCinozK+lYpas54E+i+D1tbES6aXMDGuXHcQdtydQIgJPf5EnChRp+yQd MJwmapk44nxNkFZCBhl0EOB5cVqFE8I5UZpefYC/Yka/HRDk1jY0gmK9YpU6LZ3O KDvnEUjt/n6ioTYA2JmWL2VNeN3ughDYBTB2bs1dU5xN+6HBL7L77O7XBawf+FKA doPhVnqRQjuvNfHRProiYxwgj/cIyXE2ndrHhx55N/K3lD51Ezw+p7HPsRNUcGSo 5AtOkchHSGo= =LOWk -----END PGP SIGNATURE-----