High
Security advisory
In libsixel v1.8.2, there is a heap-based buffer over-read in the function load_jpeg() in the file loader.c, as demonstrated by img2sixel.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-3574
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:40 UTC · Revision 1
Source evidence
In libsixel v1.8.2, there is a heap-based buffer over-read in the function load_jpeg() in the file loader.c, as demonstrated by img2sixel.
osv:CVE-2019-3574
Complete source record
{
"id": "df538cbabcabdfc95550cde594d5ed13557ba3c43293a3ffde8599ebcf241841",
"url": "https://osv.dev/vulnerability/CVE-2019-3574",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-3574",
"summary": "In libsixel v1.8.2, there is a heap-based buffer over-read in the function load_jpeg() in the file loader.c, as demonstrated by img2sixel.",
"evidence": "osv:CVE-2019-3574",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2019-3574",
"aliases": [
"CVE-2019-3574"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/saitoha/libsixel",
"type": "GIT",
"events": [
{
"introduced": "6219db6d8416fde3a3b1272e900a76ccdfadec01"
},
{
"last_affected": "6219db6d8416fde3a3b1272e900a76ccdfadec01"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:saitoha:libsixel:1.8.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.8.2"
},
{
"last_affected": "1.8.2"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"1.8.2",
"v1.8.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-3574.json"
}
}
],
"modified": "2026-10-20T10:50:55.529117355Z",
"provider": "osv",
"references": [
"https://github.com/TeamSeri0us/pocs/tree/master/libsixel",
"https://github.com/saitoha/libsixel/issues/83"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2019-3574",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 382353,
"published_at": "2019-01-02T15:29:00.423+00:00"
}