A flaw was found in GStreamer gst-plugins-good (avidemux). In gst_avi_demux_riff_parse_vprp(), the number of available gst_riff_vprp_video_field_desc entries is calculated by dividing the remaining buffer size by the attacker-controlled vprp->fields value, rather than by sizeof(gst_riff_vprp_video_field_desc). This can cause the parser to treat more field descriptors as available than fit in the input buffer, resulting in out-of-bounds reads. Processing a crafted AVI via playbin/decodebin can crash the application (denial of service). Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
{
"cna_assigner": "redhat",
"cwe_ids": [
"CWE-125"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73434.json",
"unresolved_ranges": [
{
"extracted_events": [
{
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{
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{
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{
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{
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{
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{
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{
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],
"source": "AFFECTED_FIELD",
"strategy": "InverseAffectedRanges"
}
]
},
{
"extracted_events": [
{
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{
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}
],
"source": "AFFECTED_FIELD",
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}
]
}
]
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*",
"range": [
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{
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}