Medium
libpng, libpng1.6 — security advisory
png_create_info_struct in png.c in libpng 1.6.36 has a memory leak, as demonstrated by pngcp. NOTE: a third party has stated "I don't think it is libpng's job to free this buffer.
- Products
- libpng, libpng1.6
- Affected versions
- 1.2.49-4ubuntu1, 1.2.49-5ubuntu1, 1.2.50-1ubuntu1, 1.2.50-1ubuntu2, 1.2.50-1ubuntu2.14.04.1, 1.2.50-1ubuntu2.14.04.2, 1.2.50-1ubuntu2.14.04.3, 1.2.50-1ubuntu2.14.04.3+esm1, 1.2.50-1ubuntu2.14.04.3+esm2, 1.2.51-0ubuntu3, 1.2.54-1, 1.2.54-1ubuntu1, 1.2.54-1ubuntu1.1, 1.2.54-1ubuntu1.1+esm1, 1.2.54-1ubuntu1.1+esm2, 1.2.54-1ubuntu1.1+esm3, 1.6.20-2, 1.6.20-2ubuntu0.1~esm1, 1.6.20-2ubuntu0.1~esm2, 1.6.20-2ubuntu0.1~esm3, 1.6.20-2ubuntu0.1~esm4, 1.6.20-2ubuntu0.1~esm5, 1.6.34-1, 1.6.34-1ubuntu0.18.04.1, 1.6.34-1ubuntu0.18.04.2, 1.6.34-1ubuntu0.18.04.2+esm1, 1.6.34-1ubuntu0.18.04.2+esm2, 1.6.34-1ubuntu0.18.04.2+esm3, 1.6.34-1ubuntu0.18.04.2+esm4
- Fixed versions
- Not specified
- CVEs
- CVE-2019-6129
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 09:08 UTC · Revision 1
Source evidence
png_create_info_struct in png.c in libpng 1.6.36 has a memory leak, as demonstrated by pngcp. NOTE: a third party has stated "I don't think it is libpng's job to free this buffer.
osv:UBUNTU-CVE-2019-6129
libpng
Fixed versions: Not specified
libpng
Fixed versions: Not specified
libpng1.6
Fixed versions: Not specified
libpng1.6
Fixed versions: Not specified
Complete source record
{
"id": "1527d1ab444a713f9b0dbbffb1f2982f8142a7d7cd65154f800a2a2e25791dcb",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2019-6129",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2019-6129",
"summary": "png_create_info_struct in png.c in libpng 1.6.36 has a memory leak, as demonstrated by pngcp. NOTE: a third party has stated \"I don't think it is libpng's job to free this buffer.",
"evidence": "osv:UBUNTU-CVE-2019-6129",
"products": [
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{
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{
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{
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{
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{
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],
"severity": "medium",
"structured": {
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"aliases": [
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],
"metrics": [
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"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
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{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
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{
"type": "Ubuntu",
"score": "negligible"
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"affected": [
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"events": [
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"introduced": "0"
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],
"package": {
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"ecosystem": "Ubuntu:Pro:14.04:LTS"
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"1.2.50-1ubuntu2.14.04.3",
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"database_specific": {
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},
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"modified": "2026-10-08T12:50:16.043486197Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2019-6129",
"https://www.cve.org/CVERecord?id=CVE-2019-6129"
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},
"source_id": "core-osv",
"document_id": 99529,
"published_at": "2019-01-11T05:29:00+00:00"
}