{"id":"CVE-2021-20319","aliases":["EUVD-2021-2149","GHSA-3r3g-g73x-g593","RHSA-2021:3926","RHSA-2021:3930","RHSA-2021:3934","RHSA-2021:4008","RHSA-2022:0055","RUSTSEC-2022-0103"],"status":"published","title":"coreos-installer improperly verifies GPG signature when decompressing gzipped artifact","description":"An improper signature verification vulnerability was found in coreos-installer. A specially crafted gzip installation image can bypass the image signature verification and as a consequence can lead to the installation of unsigned content. 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Advisory","fix","web"]},{"url":"https://github.com/coreos/coreos-installer/pull/655","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20319","tags":["advisory","web"]},{"url":"https://rustsec.org/advisories/RUSTSEC-2022-0103.html","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-3r3g-g73x-g593"},{"url":"https://github.com/coreos/coreos-installer","tags":["package"]},{"url":"https://access.redhat.com/errata/RHSA-2021:3926","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2015758","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_3926.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-20319","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-20319","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2021:3930","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2015779","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_3930.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2021:3934","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2015804","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_3934.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2021:4008","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_4008.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2022:0055","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1129074","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2011949","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2024938","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2030801","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2030806","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2051730","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_0055.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2014-3577","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2014-3577","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-3577","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21684","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21684","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21684","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2499","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21685","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020322","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21685","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21685","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21686","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020323","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21686","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21686","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21687","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020324","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21687","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21687","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21688","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020327","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21688","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21688","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21689","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020335","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21689","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21689","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21690","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020336","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21690","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21690","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21691","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020338","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21691","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21691","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21692","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020339","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21692","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21692","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21693","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020341","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21693","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21693","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21694","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020342","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21694","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21694","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21695","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020343","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21695","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21695","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21696","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020344","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21696","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21696","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2423","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21697","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020345","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21697","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21697","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2428","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-21698","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020385","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21698","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21698","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2506","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-41190","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-41190","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41190","tags":["advisory"]},{"url":"https://github.com/moby/moby/security/advisories/GHSA-xmmx-7jpf-fx42","tags":["article"]},{"url":"https://github.com/opencontainers/distribution-spec/security/advisories/GHSA-mc8v-mgrf-8f4m","tags":["article"]},{"url":"https://github.com/opencontainers/image-spec/security/advisories/GHSA-77vh-xpmg-72qh","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-41772","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2020736","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-41772","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41772","tags":["advisory"]},{"url":"https://groups.google.com/g/golang-announce/c/0fM21h43arc","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-44716","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-44716","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44716","tags":["advisory"]},{"url":"https://groups.google.com/g/golang-announce/c/hcmEScgc00k","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-44717","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-44717","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44717","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-0532","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-0532","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-0532","tags":["advisory"]},{"url":"https://github.com/cri-o/cri-o/security/advisories/GHSA-w2j5-3rcx-vx7x","tags":["article"]},{"url":"https://kubernetes.io/docs/tasks/administer-cluster/sysctl-cluster/#enabling-unsafe-sysctls","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-20612","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2044460","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-20612","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-20612","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2022-01-12/#SECURITY-2558","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-20617","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2044502","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-20617","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-20617","tags":["advisory"]},{"url":"https://www.jenkins.io/security/advisory/2022-01-12/#SECURITY-1878","tags":["article"]},{"url":"https://crates.io/crates/coreos-installer","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-20319","description":"An improper signature verification vulnerability was found in coreos-installer. A specially crafted gzip installation image can bypass the image signature verification and as a consequence can lead to the installation of unsigned content. An attacker able to modify the original installation image can write arbitrary data, and achieve full access to the node being installed.","status":"published","published":"2022-03-04T17:05:50Z","modified":"2024-08-03T17:37:23.93Z","cwes":["CWE-347"],"updated_at":"2026-11-02T14:32:55.564736Z"}],"euvd":[{"id":"EUVD-2021-2149","description":"An improper signature verification vulnerability was found in coreos-installer. A specially crafted gzip installation image can bypass the image signature verification and as a consequence can lead to the installation of unsigned content. An attacker able to modify the original installation image can write arbitrary data, and achieve full access to the node being installed.","status":"published","published":"2022-03-04T17:05:50Z","modified":"2024-08-03T17:37:23Z","updated_at":"2026-11-03T03:25:09.355483Z"}],"ghsa":[{"id":"GHSA-3r3g-g73x-g593","title":"coreos-installer improperly verifies GPG signature when decompressing gzipped artifact","description":"### Impact\n\ncoreos-installer fails to correctly verify GPG signatures when decompressing gzip-compressed artifacts.  This allows bypass of signature verification in cases where coreos-installer decompresses a downloaded OS image, allowing an attacker who can modify the OS image to compromise a newly-installed system.\n\nDefault installations from ISO or PXE media in Fedora CoreOS, RHEL CoreOS, and RHEL for Edge are **not** affected, as coreos-installer installs from an OS image shipped as part of the install media.\n\nThese flows are affected:\n\n1.  Installing with `--image-file`, `--image-url`, or `coreos.inst.image_url`.  For example, if a user has a local mirror of installation images, an attacker could replace an image with a gzip-compressed alternative (even if the file extension is `.xz`).  The result:\n\n    ```\n    $ coreos-installer install --image-url http://localhost:8080/image.xz /dev/loop0\n    Downloading image from http://localhost:8080/image.xz\n    Downloading signature from http://localhost:8080/image.xz.sig\n    \u003e Read disk 749.9 MiB/749.9 MiB (100%)\n    gpg: Signature made Mon 20 Sep 2021 02:41:50 PM EDT\n    gpg: using RSA key 8C5BA6990BDB26E19F2A1A801161AE6945719A39\n    gpg: BAD signature from \"Fedora (34) \u003cfedora-34-primary@fedoraproject.org\u003e\" [ultimate]\n    Install complete.\n    ```\n\n    Notice that GPG reports a bad signature, but coreos-installer continues anyway.  Automation that relies on coreos-installer's exit status will not notice either.\n\n2. `coreos-installer download --decompress --image-url`:\n\n    ```\n    $ coreos-installer download --decompress --image-url http://localhost:8080/image.xz\n    \u003e Read disk 749.9 MiB/749.9 MiB (100%)\n    gpg: Signature made Mon 20 Sep 2021 02:41:50 PM EDT\n    gpg: using RSA key 8C5BA6990BDB26E19F2A1A801161AE6945719A39\n    gpg: BAD signature from \"Fedora (34) \u003cfedora-34-primary@fedoraproject.org\u003e\" [ultimate]\n    ./image\n    ```\n\n    Again, coreos-installer reports success.\n\n3. Installing with default parameters, when **not** installing from the image built into live ISO or PXE media, if the hosting service is compromised or if an active attacker gains control of the HTTPS response.\n\n4. `coreos-installer download --decompress` if the hosting service is compromised or if an active attacker gains control of the HTTPS response.\n\n### Patches\n\nThe vulnerability is [fixed](https://github.com/coreos/coreos-installer/pull/659) in coreos-installer 0.10.1.\n\n### Workarounds\n\nFor `coreos-installer download`, do not use the `-d` or `--decompress` options.\n\nFor `coreos-installer install`, manually inspect the stderr output.  If `BAD signature` appears, do not boot from the target disk.  Note, however, that some OS services may have already accessed data on the compromised disk.\n\n### References\n\nFor more information, see [PR 655](https://github.com/coreos/coreos-installer/pull/655).\n\n### For more information\n\nIf you have any questions or comments about this advisory, [open an issue in coreos-installer](https://github.com/coreos/coreos-installer/issues/new/choose) or email the CoreOS [development mailing list](https://lists.fedoraproject.org/archives/list/coreos@lists.fedoraproject.org/).","status":"published","published":"2021-10-12T16:06:47Z","modified":"2025-12-22T16:27:07Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:39:14.093341Z"}],"nvd":[{"id":"CVE-2021-20319","description":"An improper signature verification vulnerability was found in coreos-installer. A specially crafted gzip installation image can bypass the image signature verification and as a consequence can lead to the installation of unsigned content. An attacker able to modify the original installation image can write arbitrary data, and achieve full access to the node being installed.","status":"published","published":"2022-03-04T18:15:08.06Z","modified":"2026-06-17T03:33:39.947Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:07:05.198719Z"}],"osv":[{"id":"CVE-2021-20319","description":"An improper signature verification vulnerability was found in coreos-installer. A specially crafted gzip installation image can bypass the image signature verification and as a consequence can lead to the installation of unsigned content. An attacker able to modify the original installation image can write arbitrary data, and achieve full access to the node being installed.","status":"published","published":"2022-03-04T18:15:08.06Z","modified":"2026-10-20T10:54:27.897969354Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:18.004149Z"},{"id":"GHSA-3r3g-g73x-g593","title":"coreos-installer improperly verifies GPG signature when decompressing gzipped artifact","description":"### Impact\n\ncoreos-installer fails to correctly verify GPG signatures when decompressing gzip-compressed artifacts.  This allows bypass of signature verification in cases where coreos-installer decompresses a downloaded OS image, allowing an attacker who can modify the OS image to compromise a newly-installed system.\n\nDefault installations from ISO or PXE media in Fedora CoreOS, RHEL CoreOS, and RHEL for Edge are **not** affected, as coreos-installer installs from an OS image shipped as part of the install media.\n\nThese flows are affected:\n\n1.  Installing with `--image-file`, `--image-url`, or `coreos.inst.image_url`.  For example, if a user has a local mirror of installation images, an attacker could replace an image with a gzip-compressed alternative (even if the file extension is `.xz`).  The result:\n\n    ```\n    $ coreos-installer install --image-url http://localhost:8080/image.xz /dev/loop0\n    Downloading image from http://localhost:8080/image.xz\n    Downloading signature from http://localhost:8080/image.xz.sig\n    \u003e Read disk 749.9 MiB/749.9 MiB (100%)\n    gpg: Signature made Mon 20 Sep 2021 02:41:50 PM EDT\n    gpg: using RSA key 8C5BA6990BDB26E19F2A1A801161AE6945719A39\n    gpg: BAD signature from \"Fedora (34) \u003cfedora-34-primary@fedoraproject.org\u003e\" [ultimate]\n    Install complete.\n    ```\n\n    Notice that GPG reports a bad signature, but coreos-installer continues anyway.  Automation that relies on coreos-installer's exit status will not notice either.\n\n2. `coreos-installer download --decompress --image-url`:\n\n    ```\n    $ coreos-installer download --decompress --image-url http://localhost:8080/image.xz\n    \u003e Read disk 749.9 MiB/749.9 MiB (100%)\n    gpg: Signature made Mon 20 Sep 2021 02:41:50 PM EDT\n    gpg: using RSA key 8C5BA6990BDB26E19F2A1A801161AE6945719A39\n    gpg: BAD signature from \"Fedora (34) \u003cfedora-34-primary@fedoraproject.org\u003e\" [ultimate]\n    ./image\n    ```\n\n    Again, coreos-installer reports success.\n\n3. Installing with default parameters, when **not** installing from the image built into live ISO or PXE media, if the hosting service is compromised or if an active attacker gains control of the HTTPS response.\n\n4. `coreos-installer download --decompress` if the hosting service is compromised or if an active attacker gains control of the HTTPS response.\n\n### Patches\n\nThe vulnerability is [fixed](https://github.com/coreos/coreos-installer/pull/659) in coreos-installer 0.10.1.\n\n### Workarounds\n\nFor `coreos-installer download`, do not use the `-d` or `--decompress` options.\n\nFor `coreos-installer install`, manually inspect the stderr output.  If `BAD signature` appears, do not boot from the target disk.  Note, however, that some OS services may have already accessed data on the compromised disk.\n\n### References\n\nFor more information, see [PR 655](https://github.com/coreos/coreos-installer/pull/655).\n\n### For more information\n\nIf you have any questions or comments about this advisory, [open an issue in coreos-installer](https://github.com/coreos/coreos-installer/issues/new/choose) or email the CoreOS [development mailing list](https://lists.fedoraproject.org/archives/list/coreos@lists.fedoraproject.org/).","status":"published","published":"2021-10-12T16:06:47Z","modified":"2026-09-10T03:49:08.951357435Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T15:46:36.092962Z"},{"id":"RHSA-2021:3926","title":"Red Hat Security Advisory: OpenShift Container Platform 4.8.17 security and bug fix update","status":"published","published":"2024-09-16T06:41:10Z","modified":"2026-08-12T10:01:39Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.619234Z"},{"id":"RHSA-2021:3930","title":"Red Hat Security Advisory: OpenShift Container Platform 4.7.36 security and bug fix update","status":"published","published":"2024-09-16T06:41:03Z","modified":"2026-08-12T10:01:40Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.619234Z"},{"id":"RHSA-2021:3934","title":"Red Hat Security Advisory: OpenShift Container Platform 4.9.4 packages and security update","status":"published","published":"2024-09-16T06:40:55Z","modified":"2026-08-12T10:01:40Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.619234Z"},{"id":"RHSA-2021:4008","title":"Red Hat Security Advisory: OpenShift Container Platform 4.6.49 security update","status":"published","published":"2024-09-16T06:41:17Z","modified":"2026-08-12T10:01:41Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.619234Z"},{"id":"RHSA-2022:0055","title":"Red Hat Security Advisory: OpenShift Container Platform 4.10.3 bug fix and security update","status":"published","published":"2024-09-30T14:19:01Z","modified":"2026-08-20T10:02:39Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:53:09.077222Z"},{"id":"RUSTSEC-2022-0103","title":"Incorrect signature verification on gzip-compressed install images","description":"The coreos-installer is a program to fetch a disk image and\nstream it to a target disk.\n\nDuring the installation process the installation image gpg\nsignatures are verified.\n\nThe signature verification can be bypassed for gzip-compressed\nimages due to a flaw in gzip coreos-installer wrapper.\n\nWhen the decoder encounters the gzip trailer, it signals EOF\nto its output and does not continue reading from its input.\nAs a result, earlier wrappers don't notice that they've reached\nEOF.\n\nIn particular, the GPG wrapper does not check the exit code of GPG.\n\nThus, if an attacker can substitute an attacker-controlled\ngzipped disk image, installation will complete successfully\nwithout a valid signature.\n\nThis vulnerability impacts only specific, User-Provisioned\nInfrastructure (UPI) installation methods where coreos-installer\nis used and where gzip-compressed images are configured as\nthe installation source.\n\nThe Installer-Provisioned Infrastructure (IPI) bare-metal\ninstalls do use coreos-installer, but this installation\nmethod uses an install image embedded in the live OS image\n(ISO or PXE image), therefore is not affected by this\nvulnerability.\n\nThis vulnerability is specific to some upstream Fedora\nCoreOS installation flows.","status":"published","published":"2022-03-04T12:00:00Z","modified":"2025-12-21T14:11:01.036603Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:39.971022Z"}]}}