oesa-2026-3469
Vulnerability from osv_openeuler
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 s TTY Demuxer. This vulnerability allows possible data exfiltration via improper parsing of non-TTY-compliant input files in HLS playlists.(CVE-2023-6602)
FFmpeg versions from 3.0 up to, but not including, 9.0 contain an uninitialized heap memory read vulnerability in the native RSCC decoder (libavcodec/rscc.c) that allows attackers to disclose heap memory contents by supplying a crafted video file with a compressed tile that decompresses fewer bytes than the declared tile geometry requires. When rscc_decode_frame() calls av_image_copy_plane() without validating the decompressed byte count against the tile dimensions, the unwritten suffix of the persistent intermediate buffer ctx->inflated_buf is copied into the decoded frame, potentially exposing data from prior heap allocations or previous decoded frames in persistent decoding services.(CVE-2026-70629)
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"ffmpeg-4.2.4-48.oe2003sp4.aarch64.rpm",
"ffmpeg-debuginfo-4.2.4-48.oe2003sp4.aarch64.rpm",
"ffmpeg-debugsource-4.2.4-48.oe2003sp4.aarch64.rpm",
"ffmpeg-devel-4.2.4-48.oe2003sp4.aarch64.rpm",
"ffmpeg-libs-4.2.4-48.oe2003sp4.aarch64.rpm",
"libavdevice-4.2.4-48.oe2003sp4.aarch64.rpm"
],
"src": [
"ffmpeg-4.2.4-48.oe2003sp4.src.rpm"
],
"x86_64": [
"ffmpeg-4.2.4-48.oe2003sp4.x86_64.rpm",
"ffmpeg-debuginfo-4.2.4-48.oe2003sp4.x86_64.rpm",
"ffmpeg-debugsource-4.2.4-48.oe2003sp4.x86_64.rpm",
"ffmpeg-devel-4.2.4-48.oe2003sp4.x86_64.rpm",
"ffmpeg-libs-4.2.4-48.oe2003sp4.x86_64.rpm",
"libavdevice-4.2.4-48.oe2003sp4.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:20.03-LTS-SP4",
"name": "ffmpeg",
"purl": "pkg:rpm/openEuler/ffmpeg\u0026distro=openEuler-20.03-LTS-SP4"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.2.4-48.oe2003sp4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "Medium"
},
"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 s TTY Demuxer. This vulnerability allows possible data exfiltration via improper parsing of non-TTY-compliant input files in HLS playlists.(CVE-2023-6602)\n\nFFmpeg versions from 3.0 up to, but not including, 9.0 contain an uninitialized heap memory read vulnerability in the native RSCC decoder (libavcodec/rscc.c) that allows attackers to disclose heap memory contents by supplying a crafted video file with a compressed tile that decompresses fewer bytes than the declared tile geometry requires. When rscc_decode_frame() calls av_image_copy_plane() without validating the decompressed byte count against the tile dimensions, the unwritten suffix of the persistent intermediate buffer ctx-\u0026gt;inflated_buf is copied into the decoded frame, potentially exposing data from prior heap allocations or previous decoded frames in persistent decoding services.(CVE-2026-70629)",
"id": "OESA-2026-3469",
"modified": "2026-08-20T10:00:40Z",
"published": "2026-08-20T10:00:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3469"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6602"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-70629"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "ffmpeg security update",
"upstream": [
"CVE-2023-6602",
"CVE-2026-70629"
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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