Medium
Security advisory
In line libavcodec/h264dec.c:500 in libav(v13_dev0), ffmpeg(n3.4), chromium(56 prior Feb 13, 2017), the return value of init_get_bits is ignored and get_ue_golomb(&gb) is called on an uninitialized get_bits context, which causes a NULL deref exception.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-1000460
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:34 UTC · Revision 1
Source evidence
In line libavcodec/h264dec.c:500 in libav(v13_dev0), ffmpeg(n3.4), chromium(56 prior Feb 13, 2017), the return value of init_get_bits is ignored and get_ue_golomb(&gb) is called on an uninitialized get_bits context, which causes a NULL deref exception.
osv:CVE-2017-1000460
Complete source record
{
"id": "bba9d313d0cac51a3f99e77aa1efea3cfa7acf2794478a6a6471bc607482501b",
"url": "https://osv.dev/vulnerability/CVE-2017-1000460",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-1000460",
"summary": "In line libavcodec/h264dec.c:500 in libav(v13_dev0), ffmpeg(n3.4), chromium(56 prior Feb 13, 2017), the return value of init_get_bits is ignored and get_ue_golomb(&gb) is called on an uninitialized get_bits context, which causes a NULL deref exception.",
"evidence": "osv:CVE-2017-1000460",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2017-1000460",
"aliases": [
"CVE-2017-1000460"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://git.ffmpeg.org/ffmpeg.git",
"type": "GIT",
"events": [
{
"introduced": "22b0daa1b3f0ac5d91cc1a057d230995590847cd"
},
{
"last_affected": "22b0daa1b3f0ac5d91cc1a057d230995590847cd"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:ffmpeg:ffmpeg:3.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.4"
},
{
"last_affected": "3.4"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"3.4",
"n3.4-dev"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-1000460.json"
}
},
{
"ranges": [
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"repo": "https://github.com/ffmpeg/ffmpeg",
"type": "GIT",
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},
{
"last_affected": "22b0daa1b3f0ac5d91cc1a057d230995590847cd"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:ffmpeg:ffmpeg:3.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.4"
},
{
"last_affected": "3.4"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"3.4",
"n3.4-dev"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-1000460.json"
}
},
{
"ranges": [
{
"repo": "https://github.com/libav/libav",
"type": "GIT",
"events": [
{
"introduced": "121f34d5f0c8d7d376829a467590fbbe4c228f4f"
},
{
"last_affected": "121f34d5f0c8d7d376829a467590fbbe4c228f4f"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:libav:libav:13_dev0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "13_dev0"
},
{
"last_affected": "13_dev0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"13_dev0",
"v13_dev0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-1000460.json"
}
}
],
"modified": "2026-10-24T10:30:30.529500408Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2019/03/msg00041.html",
"https://bugzilla.libav.org/show_bug.cgi?id=952",
"https://chromium.googlesource.com/chromium/third_party/ffmpeg/+/8e313ca08800178efce00045e07dc494d437b70c",
"https://lists.ffmpeg.org/pipermail/ffmpeg-cvslog/2017-January/104221.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*"
],
"vendor_product": "google:chrome",
"extracted_events": [
{
"range": [
{
"last_affected": "56.0.2924"
}
],
"source": "CPE_RANGE"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2017-1000460",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 432586,
"published_at": "2018-01-03T20:29:00.22+00:00"
}