{"schema_version":"1.7.2","id":"OESA-2026-3796","modified":"2026-09-14T16:34:27Z","published":"2026-09-14T16:34:27Z","upstream":["CVE-2026-18393","CVE-2026-38343","CVE-2026-38344","CVE-2026-38346","CVE-2026-38347","CVE-2026-38348","CVE-2026-38349"],"summary":"ffmpeg security update","details":"FFmpeg is a complete and free Internet live audio and video broadcasting solution for Linux/Unix. It also includes a digital VCR. It can encode in real time in many formats including MPEG1 audio and video, MPEG4, h263, ac3, asf, avi, real, mjpeg, and flash.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in FFmpeg. The tdsc_load_cursor() function writes beyond the bounds of a heap-allocated buffer when processing crafted TDSC cursor data. A remote attacker could exploit this by supplying a specially crafted video file, potentially leading to a denial of service or arbitrary code execution.(CVE-2026-18393)\n\nA flaw was found in FFmpeg. An integer overflow in the `libavfilter/vf_scale.c` component allows attackers to cause a Denial of Service (DoS) by supplying a specially crafted video file. This can lead to the application becoming unresponsive or crashing.(CVE-2026-38343)\n\nA flaw was found in FFmpeg. This vulnerability involves a NULL pointer dereference within the `get_min_buffer_size` function when processing specially crafted video files. An attacker could exploit this by providing a malicious video file, leading to a Denial of Service (DoS). A Denial of Service attack prevents legitimate users from accessing a service or resource.(CVE-2026-38344)\n\nA flaw was found in FFmpeg. An integer overflow vulnerability in the `yuv2planeX_8_c()` function allows a remote attacker to cause a Denial of Service (DoS) by supplying a specially crafted video file. This can lead to the application becoming unresponsive or crashing, impacting system availability.(CVE-2026-38346)\n\nA flaw was found in FFmpeg. A heap overflow vulnerability exists in the `ff_sws_alphablendaway` function. This flaw allows attackers to cause a Denial of Service (DoS) by providing a specially crafted input. Successful exploitation could lead to the application becoming unresponsive or crashing.(CVE-2026-38347)\n\nA flaw was found in FFmpeg, specifically within the libswscale/utils.c component. An integer overflow vulnerability allows a remote attacker to cause a Denial of Service (DoS) by supplying a specially crafted image file. This could lead to the application becoming unresponsive or crashing.(CVE-2026-38348)\n\nA flaw was found in FFmpeg. An integer overflow vulnerability in the `hScale16To19_c()` function allows a remote attacker to cause a Denial of Service (DoS) by supplying a specially crafted image file. This can lead to the application becoming unresponsive or crashing, preventing legitimate users from accessing the service.(CVE-2026-38349)","affected":[{"package":{"ecosystem":"openEuler:20.03-LTS-SP4","name":"ffmpeg","purl":"pkg:rpm/openEuler/ffmpeg&distro=openEuler-20.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.4-55.oe2003sp4"}]}],"ecosystem_specific":{"aarch64":["ffmpeg-4.2.4-55.oe2003sp4.aarch64.rpm","ffmpeg-debuginfo-4.2.4-55.oe2003sp4.aarch64.rpm","ffmpeg-debugsource-4.2.4-55.oe2003sp4.aarch64.rpm","ffmpeg-devel-4.2.4-55.oe2003sp4.aarch64.rpm","ffmpeg-libs-4.2.4-55.oe2003sp4.aarch64.rpm","libavdevice-4.2.4-55.oe2003sp4.aarch64.rpm"],"src":["ffmpeg-4.2.4-55.oe2003sp4.src.rpm"],"x86_64":["ffmpeg-4.2.4-55.oe2003sp4.x86_64.rpm","ffmpeg-debuginfo-4.2.4-55.oe2003sp4.x86_64.rpm","ffmpeg-debugsource-4.2.4-55.oe2003sp4.x86_64.rpm","ffmpeg-devel-4.2.4-55.oe2003sp4.x86_64.rpm","ffmpeg-libs-4.2.4-55.oe2003sp4.x86_64.rpm","libavdevice-4.2.4-55.oe2003sp4.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3796"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18393"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-38343"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-38344"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-38346"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-38347"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-38348"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-38349"}],"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"database_specific":{"severity":"High"}}