OESA-2026-3796

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3796
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-3796.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-3796
Upstream
  • CVE-2026-38343
  • CVE-2026-38344
  • CVE-2026-38346
  • CVE-2026-38347
  • CVE-2026-38348
  • CVE-2026-38349
Published
2026-09-14T16:34:27Z
Modified
2026-09-13T16:45:43Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
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.

Security Fix(es):

A 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)

A 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)

A 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)

A 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)

A 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)

A 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)

A 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)

Database specific 
{
    "severity": "High"
}
References

Affected packages

openEuler:20.03-LTS-SP4 / ffmpeg

Package

Name
ffmpeg
Purl
pkg:rpm/openEuler/ffmpeg&distro=openEuler-20.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
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"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3796.json"