{"id":"CVE-2021-20296","aliases":["ALPINE-CVE-2021-20296","AZL-44505","DEBIAN-CVE-2021-20296","DLA-2701-1","DLA-3236-1","EUVD-2021-7721","GHSA-h585-99w7-8g9c","MGASA-2021-0326","OESA-2021-1167","SUSE-SU-2021:1489-1","UBUNTU-CVE-2021-20296","USN-4996-1","USN-4996-2","USN-5620-1","openSUSE-SU-2021:0670-1"],"status":"published","title":"A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an...","description":"A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. 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Advisory","advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html","tags":["mailing-list","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20296","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-h585-99w7-8g9c"},{"url":"https://security.alpinelinux.org/vuln/CVE-2021-20296","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-20296","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2021-0326.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=29005","tags":["report"]},{"url":"https://www.openexr.com/","tags":["web"]},{"url":"https://ubuntu.com/security/notices/USN-4900-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-4996-1","tags":["advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/4KYNJSMVA6YJY5NMKDZ5SAISKZG2KCKC/","tags":["web"]},{"url":"https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1167","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3474","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3477","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3475","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3476","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3479","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20211489-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1184353","tags":["report"]},{"url":"https://bugzilla.suse.com/1184354","tags":["report"]},{"url":"https://bugzilla.suse.com/1184355","tags":["report"]},{"url":"https://bugzilla.suse.com/1185216","tags":["report"]},{"url":"https://bugzilla.suse.com/1185217","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2021-20296","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-23215","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-26260","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3477","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3479","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2021-20296","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4996-2","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-5620-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-20296","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-3598","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-3605","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-23215","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-26260","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-3933","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-3941","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/XRXYHURHLDTSCIDOVAICJNNLPZTJP6NQ/","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2021-20296","description":"A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.","status":"published","published":"2021-04-01T00:00:00Z","modified":"2024-08-03T17:37:23.528Z","cwes":["CWE-476"],"updated_at":"2026-11-02T14:32:55.905855Z"}],"euvd":[{"id":"EUVD-2021-7721","description":"A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.","status":"published","published":"2021-04-01T00:00:00Z","modified":"2024-08-03T17:37:23Z","updated_at":"2026-11-03T03:25:08.888273Z"}],"ghsa":[{"id":"GHSA-h585-99w7-8g9c","title":"A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an...","description":"A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.","status":"published","published":"2022-05-24T17:46:03Z","modified":"2023-01-27T05:04:59Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:42:36.158217Z"}],"nvd":[{"id":"CVE-2021-20296","description":"A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.","status":"published","published":"2021-04-01T14:15:13.31Z","modified":"2026-06-17T03:33:37.577Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:06:51.197859Z"}],"osv":[{"id":"ALPINE-CVE-2021-20296","description":"A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.","status":"published","published":"2021-04-01T14:15:13.31Z","modified":"2026-11-03T06:32:46.326258417Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T07:16:46.202932Z"},{"id":"AZL-44505","title":"CVE-2021-20296 affecting package OpenEXR 2.3.0-6","description":"A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.","status":"published","published":"2021-04-01T14:15:13Z","modified":"2026-11-05T05:36:30Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-05T16:41:20.107976Z"},{"id":"CVE-2021-20296","description":"A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.","status":"published","published":"2021-04-01T14:15:13.31Z","modified":"2026-10-24T14:51:02.627762793Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:44:18.004149Z"},{"id":"DEBIAN-CVE-2021-20296","description":"A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.","status":"published","published":"2021-04-01T14:15:13.31Z","modified":"2026-10-23T18:03:24.82988624Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:45:34.637046Z"},{"id":"OESA-2021-1167","title":"OpenEXR security update","description":"OpenEXR is a high dynamic-range (HDR) image file format originally developed by Industrial Light \u0026amp; Magic for use in computer imaging applications.\r\n\r\nSecurity Fix(es):\r\n\r\nThere\u0026apos;s a flaw in OpenEXR in versions before 3.0.0-beta. A crafted input file that is processed by OpenEXR could cause a shift overflow in the FastHufDecoder, potentially leading to problems with application availability.(CVE-2021-3474)\r\n\r\nThere\u0026apos;s a flaw in OpenEXR\u0026apos;s deep tile sample size calculations in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, subsequently leading to an out-of-bounds read. The greatest risk of this flaw is to application availability.(CVE-2021-3477)\r\n\r\nThere is a flaw in OpenEXR in versions before 3.0.0-beta. An attacker who can submit a crafted file to be processed by OpenEXR could cause an integer overflow, potentially leading to problems with application availability.(CVE-2021-3475)\r\n\r\nA flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR\u0026apos;s IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.(CVE-2021-20296)\r\n\r\nA flaw was found in OpenEXR\u0026apos;s B44 uncompression functionality in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to OpenEXR could trigger shift overflows, potentially affecting application availability.(CVE-2021-3476)\r\n\r\nThere\u0026apos;s a flaw in OpenEXR\u0026apos;s Scanline API functionality in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger excessive consumption of memory, resulting in an impact to system availability.(CVE-2021-3479)","status":"published","published":"2021-05-06T11:04:24Z","modified":"2026-08-18T01:15:29.894302653Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:52:38.987987Z"},{"id":"UBUNTU-CVE-2021-20296","description":"A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.","status":"published","published":"2021-04-01T14:15:00Z","modified":"2026-04-22T12:45:22.00224Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:54:25.728622Z"},{"id":"DLA-2701-1","title":"openexr - security update","status":"published","published":"2021-07-03T00:00:00Z","modified":"2026-03-09T01:23:39.093746Z","updated_at":"2026-11-02T15:46:10.712745Z"},{"id":"DLA-3236-1","title":"openexr - security update","status":"published","published":"2022-12-12T00:00:00Z","modified":"2026-03-09T01:21:37.851393Z","updated_at":"2026-11-02T15:46:11.734021Z"},{"id":"MGASA-2021-0326","title":"Updated openexr packages fix security vulnerabilities","description":"Updated openexr packages fix security vulnerabilities:\n\nIt was discovered that OpenEXR incorrectly handled certain malformed EXR\nimage files. If a user were tricked into opening a crafted EXR image file,\na remote attacker could cause a denial of service, or possibly execute\narbitrary code (CVE-2021-3474, CVE-2021-3475, CVE-2021-3476, CVE-2021-3477,\nCVE-2021-3478, CVE-2021-3479, CVE-2021-3598, CVE-2021-3605, CVE-2021-20296,\nCVE-2021-23169, CVE-2021-23215, CVE-2021-26260).\n","status":"published","published":"2021-07-10T12:56:54Z","modified":"2026-04-16T04:42:39.83798364Z","updated_at":"2026-11-02T15:49:41.509337Z"},{"id":"openSUSE-SU-2021:0670-1","title":"Security update for openexr","description":"This update for openexr fixes the following issues:\n\n- CVE-2021-23215: Fixed an integer-overflow in Imf_2_5:DwaCompressor:initializeBuffers (bsc#1185216).\n- CVE-2021-26260: Fixed an Integer-overflow in Imf_2_5:DwaCompressor:initializeBuffers (bsc#1185217).\n- CVE-2021-20296: Fixed a  Null Pointer dereference in Imf_2_5:hufUncompress (bsc#1184355).\n- CVE-2021-3477: Fixed a Heap-buffer-overflow in Imf_2_5::DeepTiledInputFile::readPixelSampleCounts (bsc#1184353).\n- CVE-2021-3479: Fixed an Out-of-memory caused by allocation of a very large buffer (bsc#1184354).\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2021-05-05T11:24:32Z","modified":"2026-02-04T04:02:20.926128Z","updated_at":"2026-11-02T16:58:31.879684Z"},{"id":"SUSE-SU-2021:1489-1","title":"Security update for openexr","description":"This update for openexr fixes the following issues:\n\n- CVE-2021-23215: Fixed an integer-overflow in Imf_2_5:DwaCompressor:initializeBuffers (bsc#1185216).\n- CVE-2021-26260: Fixed an Integer-overflow in Imf_2_5:DwaCompressor:initializeBuffers (bsc#1185217).\n- CVE-2021-20296: Fixed a  Null Pointer dereference in Imf_2_5:hufUncompress (bsc#1184355).\n- CVE-2021-3477: Fixed a Heap-buffer-overflow in Imf_2_5::DeepTiledInputFile::readPixelSampleCounts (bsc#1184353).\n- CVE-2021-3479: Fixed an Out-of-memory caused by allocation of a very large buffer (bsc#1184354).\n","status":"published","published":"2021-05-04T15:10:26Z","modified":"2025-05-02T04:31:03.850629Z","updated_at":"2026-11-02T15:53:49.138643Z"},{"id":"USN-4996-1","title":"openexr vulnerabilities","description":"It was discovered that OpenEXR incorrectly handled certain malformed EXR\nimage files. If a user were tricked into opening a crafted EXR image file,\na remote attacker could cause a denial of service, or possibly execute\narbitrary code.\n","status":"published","published":"2021-06-22T11:09:05Z","modified":"2026-04-22T10:15:55.115088Z","updated_at":"2026-11-02T16:58:15.683829Z"},{"id":"USN-4996-2","title":"openexr vulnerabilities","description":"USN-4996-1 fixed several vulnerabilities in OpenEXR. This update provides\nthe corresponding update for Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n It was discovered that OpenEXR incorrectly handled certain malformed EXR\n image files. If a user were tricked into opening a crafted EXR image file,\n a remote attacker could cause a denial of service, or possibly execute\n arbitrary code.\n","status":"published","published":"2021-06-22T11:46:27Z","modified":"2026-06-25T13:30:38.949163132Z","updated_at":"2026-11-02T16:58:15.683829Z"},{"id":"USN-5620-1","title":"openexr vulnerabilities","description":"It was discovered that OpenEXR incorrectly handled certain malformed EXR\nimage files. If a user were tricked into opening a crafted EXR image file,\na remote attacker could cause a denial of service, or possibly execute\narbitrary code. These issues only affected Ubuntu 20.04 ESM. (CVE-2021-3598,\nCVE-2021-3605, CVE-2021-20296, CVE-2021-23215, CVE-2021-26260)\n\nIt was discovered that OpenEXR incorrectly handled certain EXR\nimage files. An attacker could possibly use this issue to cause a crash\nor execute arbitrary code. (CVE-2021-3933)\n\nIt was discovered that OpenEXR incorrectly handled certain EXR image files.\nAn attacker could possibly use this issue to cause a crash. (CVE-2021-3941)\n","status":"published","published":"2022-09-20T12:52:57Z","modified":"2026-04-27T16:32:21.18739305Z","updated_at":"2026-11-02T16:58:16.20937Z"}]}}