High
Security advisory
The wrap_lines_smart function in ass_render.c in libass before 0.13.4 allows remote attackers to cause a denial of service (out-of-bounds read) via unspecified vectors, related to "0/3 line wrapping equalization."
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-7969
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:09 UTC · Revision 1
Source evidence
The wrap_lines_smart function in ass_render.c in libass before 0.13.4 allows remote attackers to cause a denial of service (out-of-bounds read) via unspecified vectors, related to "0/3 line wrapping equalization."
osv:CVE-2016-7969
Complete source record
{
"id": "dec3e82737f622a5f874a0f9c0c519fb8d10f3d621bc501315e2de8d51a557b5",
"url": "https://osv.dev/vulnerability/CVE-2016-7969",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-7969",
"summary": "The wrap_lines_smart function in ass_render.c in libass before 0.13.4 allows remote attackers to cause a denial of service (out-of-bounds read) via unspecified vectors, related to \"0/3 line wrapping equalization.\"",
"evidence": "osv:CVE-2016-7969",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2016-7969",
"aliases": [
"CVE-2016-7969"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/libass/libass",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "27b0232b0d9259bc009389a019eb6b47103f484a"
},
{
"fixed": "f4f48950788b91c6a30029cc28a240b834713ea7"
},
{
"fixed": "8551555c86f50f978f9ddd55a8d20bceb80d92fc"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:libass_project:libass:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "0.13.3"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "f4f48950788b91c6a30029cc28a240b834713ea7"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "8551555c86f50f978f9ddd55a8d20bceb80d92fc"
}
],
"source": "REFERENCES_TAG",
"original_tag": "0.13.4"
}
]
}
}
],
"versions": [
"0.13.3",
"0.13.2",
"0.13.1",
"0.13.0",
"0.12.3",
"0.12.2",
"0.12.1",
"0.12.0",
"0.11.2",
"0.11.1",
"0.11.0",
"0.10.2",
"0.10.1",
"0.10.0",
"0.9.12",
"0.9.11",
"0.9.10",
"0.9.9",
"0.9.8",
"0.9.7"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-7969.json",
"vanir_signatures": [
{
"id": "CVE-2016-7969-4e1985b9",
"digest": {
"length": 3562,
"function_hash": "51762142420342031960033178136166488581"
},
"source": "https://github.com/libass/libass/commit/f4f48950788b91c6a30029cc28a240b834713ea7",
"target": {
"file": "libass/ass_render.c",
"function": "wrap_lines_smart"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2016-7969-6cbe8aa7",
"digest": {
"threshold": 0.9,
"line_hashes": [
"71668818312444884182579424001384264623",
"153709568892301489054239187538722912346",
"249660998431858653011787501624001113437",
"267991441071277646004286811666452386671"
]
},
"source": "https://github.com/libass/libass/commit/f4f48950788b91c6a30029cc28a240b834713ea7",
"target": {
"file": "libass/ass_render.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:14:24Z"
}
}
],
"modified": "2026-10-20T13:14:24.422133909Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KW6DNERYHPI5Y6SQYU3XKTVSCOWMIHUC/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7JJ2SGVOX6UQQIRMVC3QACJLKHE2PYN/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUOUOK3VULMMZTNSCRFCNPDAPDWAVK7X/",
"https://bugzilla.redhat.com/show_bug.cgi?id=1381960",
"https://github.com/libass/libass/commit/f4f48950788b91c6a30029cc28a240b834713ea7",
"https://github.com/libass/libass/releases/tag/0.13.4",
"https://security.gentoo.org/glsa/201702-25"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "23"
},
{
"last_affected": "23"
},
{
"introduced": "24"
},
{
"last_affected": "24"
},
{
"introduced": "25"
},
{
"last_affected": "25"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "42.1"
},
{
"last_affected": "42.1"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:opensuse",
"extracted_events": [
{
"range": [
{
"introduced": "13.2"
},
{
"last_affected": "13.2"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2016-7969",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 387368,
"published_at": "2017-03-03T16:59:00.56+00:00"
}