ID

VAR-202106-0349

CVE

CVE-2020-24489

TITLE

Intel Virtualization Technology for Direct I/O Authorization problem vulnerability

DESCRIPTION

Incomplete cleanup in some Intel(R) VT-d products may allow an authenticated user to potentially enable escalation of privilege via local access. These packages include redhat-release-virtualization-host. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Security Fix(es): * glib: integer overflow in g_bytes_new function on 64-bit platforms due to an implicit cast from 64 bits to 32 bits (CVE-2021-27219) * hw: vt-d related privilege escalation (CVE-2020-24489) * dhcp: stack-based buffer overflow when parsing statements with colon-separated hex digits in config or lease files in dhcpd and dhclient (CVE-2021-25217) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Bugs fixed (https://bugzilla.redhat.com/): 1929858 - CVE-2021-27219 glib: integer overflow in g_bytes_new function on 64-bit platforms due to an implicit cast from 64 bits to 32 bits 1948377 - Rebase RHV-H 4.3 EUS on RHGS 3.5.z on RHEL 7 - Batch Update 4 1957238 - Rebase RHV-H 4.3 EUS on RHEL 7.9.z #6 1962650 - CVE-2020-24489 hw: vt-d related privilege escalation 1963258 - CVE-2021-25217 dhcp: stack-based buffer overflow when parsing statements with colon-separated hex digits in config or lease files in dhcpd and dhclient 6. 6 ELS) - i386, x86_64 3. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: microcode_ctl security, bug fix and enhancement update Advisory ID: RHSA-2021:2303-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:2303 Issue date: 2021-06-08 CVE Names: CVE-2020-24489 CVE-2020-24511 CVE-2020-24512 CVE-2020-24513 ==================================================================== 1. Summary: An update for microcode_ctl is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. 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 Server AUS (v. 7.6) - x86_64 Red Hat Enterprise Linux Server E4S (v. 7.6) - x86_64 Red Hat Enterprise Linux Server TUS (v. 7.6) - x86_64 3. Description: The microcode_ctl packages provide microcode updates for Intel. Security Fix(es): * hw: vt-d related privilege escalation (CVE-2020-24489) * hw: improper isolation of shared resources in some Intel Processors (CVE-2020-24511) * hw: observable timing discrepancy in some Intel Processors (CVE-2020-24512) * hw: information disclosure on some Intel Atom processors (CVE-2020-24513) Bug Fix(es) and Enhancement(s): * Update Intel CPU microcode to microcode-20210525 release 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1962650 - CVE-2020-24489 hw: vt-d related privilege escalation 1962666 - CVE-2020-24513 hw: information disclosure on some Intel Atom processors 1962702 - CVE-2020-24511 hw: improper isolation of shared resources in some Intel Processors 1962722 - CVE-2020-24512 hw: observable timing discrepancy in some Intel Processors 6. Package List: Red Hat Enterprise Linux Server AUS (v. 7.6): Source: microcode_ctl-2.1-47.21.el7_6.src.rpm x86_64: microcode_ctl-2.1-47.21.el7_6.x86_64.rpm microcode_ctl-debuginfo-2.1-47.21.el7_6.x86_64.rpm Red Hat Enterprise Linux Server E4S (v. 7.6): Source: microcode_ctl-2.1-47.21.el7_6.src.rpm x86_64: microcode_ctl-2.1-47.21.el7_6.x86_64.rpm microcode_ctl-debuginfo-2.1-47.21.el7_6.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 7.6): Source: microcode_ctl-2.1-47.21.el7_6.src.rpm x86_64: microcode_ctl-2.1-47.21.el7_6.x86_64.rpm microcode_ctl-debuginfo-2.1-47.21.el7_6.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-2020-24489 https://access.redhat.com/security/cve/CVE-2020-24511 https://access.redhat.com/security/cve/CVE-2020-24512 https://access.redhat.com/security/cve/CVE-2020-24513 https://access.redhat.com/security/updates/classification/#important 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 iQIVAwUBYMAkptzjgjWX9erEAQjQaxAAiXuFV2AZ5UNVNR29EFFEaHsHDTLaeYNm ibgw81yBpSZopPqtVYoznk9JAYc2YSrgbq0/BxC+rWHRTGPom5lZumlkqc+Nkjon sGx6SXU5q9M/nPutM/p5afTXNaHbZVQojjeP9VIpF1qz94JRcJisrumAW/sS27/v Ie6wqizvXNJZq30FOmgAq3vSXJpvakZYrBZoRvdm3MUx3rqiy/Sn62VtexeJoWJf 7BVF9y24rn2r9BuG6QNKGnYTxuUHAfcTAy5laJZ7EWdpEXcSZG6SV6x40Zdg6TaV 8x6PFSbvb2woGvWfFr5so9I92X1z9MCh4vQ5hmPnoHHREXpDKcDjvmfnStNkKD3F kOvf99Ph7E4Th/NhFwAczspiZEJYbvZ7ZenKQwWd2lGnEzFdPU5g5c3n+WVyN1qZ psD/uZlryQyIUyvRPowGppm/vJfyIiDKr+yUpq3AGscs9ASpnH6120ClaQx3KutT gpUbnKDxAW7UMlg5V4A9y5jJBgW8cZGH4qKc9KeDOj1MOjOhrfClInKhfqqY6YF1 8ulHpTKFyXzFjKBST1PKhCQQ2HhG74GoG147R0yHZw+9T0+o3ovlEQTxD2yVgGua 7LQ/vJotdgvBEaYoWTz6WwphiYQpFbbyQ6E0qplPVJMMmFKhDpNKS+ama5CHnfUF 6I3FlLzt1EU=YG8p -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . For the stable distribution (buster), these problems have been fixed in version 3.20210608.2~deb10u1. Note that there are two reported regressions; for some CoffeeLake CPUs this update may break iwlwifi (https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/56) and some for Skylake R0/D0 CPUs on systems using a very outdated firmware/BIOS, the system may hang on boot: (https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/31) If you are affected by those issues, you can recover by disabling microcode loading on boot (as documented in README.Debian (also available online at https://salsa.debian.org/hmh/intel-microcode/-/blob/master/debian/README.Debian)) We recommend that you upgrade your intel-microcode packages. For the detailed security status of intel-microcode please refer to its security tracker page at: https://security-tracker.debian.org/tracker/intel-microcode Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEtuYvPRKsOElcDakFEMKTtsN8TjYFAmDXan0ACgkQEMKTtsN8 Tja9aQ//f1dHsEghQsedGnkMCIa2qLi12UFtb4yW7TYV6uwloqbYZMbymvoXYOAB haasn+yCaGUkXuAHxcGvZuN41EkRhdG4LfS5qoZxPMsw84ETjpV2Ohwhuqwf9P20 9pqV1QLjVPCMiCqvHatkzyRNPtRhIh0uCRx5HtIeOEyKTwhVnUJrrljUXCzMDviD 3As0n0yVUPDIcJdaVxp5mxyebf1NyIYMR+7wmzTBOhK6i+rEE4NkKGkcsYBIM1ch AdTQNHv78QZld6ixL8iCUe1NsSugZ2QjbVL1BLW45fJv3f0BIF5uo6LBzbiJlN/6 xWwOdFTfqW1ORyr0k6JQ+yKz3oSE+jfUStwf+zegWOjYes5gGaA/nATzzNwwFfCQ qDqMmnN26qMI3MswP50ESkNs2JTK3955cIJjnscp5DeFArDuCFKh9wcqSZ46/QCE GVRi+F/Dh3JQxv/jP8jfLhCvkBptuendGo9qK5v22QoeCRoHS16dLu7HHP34hRrw k//EgtP35pD9eTNiIsxhmx3qTPD0gbQbcMG/5NTVtpNqsffAxYtqTy8+/4lfPkNn AYtYrrG6tjEHe1gasLkjthB7c0YLzPLdNyZkNIk6XZ2YIhx18N80c7gTBERSJ1Sh 9lmsnX3+5GWM7Fx2NN2vL5xIEo0einMJCyTlNMRDLim2ix1vpZg= =RVf2 -----END PGP SIGNATURE-----

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

authorization issue

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Red Hat

SOURCES

LAST UPDATE DATE

2024-11-20T20:13:16.564000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE