MediumFix available
musl — security advisory
In musl libc through 1.2.1, wcsnrtombs mishandles particular combinations of destination buffer size and source character limit, as demonstrated by an invalid write access (buffer overflow).
- Products
- musl
- Affected versions
- Not specified
- Fixed versions
- 1.1.20-r6, 1.1.22-r4, 1.1.24-r10, 1.1.24-r3, 1.2.2_pre2-r0
- CVEs
- CVE-2020-28928
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:09 UTC · Revision 1
Source evidence
In musl libc through 1.2.1, wcsnrtombs mishandles particular combinations of destination buffer size and source character limit, as demonstrated by an invalid write access (buffer overflow).
osv:ALPINE-CVE-2020-28928
musl
Fixed versions: 1.1.22-r4
musl
Fixed versions: 1.1.24-r3
musl
Fixed versions: 1.1.24-r10
musl
Fixed versions: 1.2.2_pre2-r0
musl
Fixed versions: 1.2.2_pre2-r0
musl
Fixed versions: 1.2.2_pre2-r0
musl
Fixed versions: 1.2.2_pre2-r0
musl
Fixed versions: 1.2.2_pre2-r0
musl
Fixed versions: 1.2.2_pre2-r0
musl
Fixed versions: 1.2.2_pre2-r0
musl
Fixed versions: 1.2.2_pre2-r0
musl
Fixed versions: 1.2.2_pre2-r0
musl
Fixed versions: 1.2.2_pre2-r0
musl
Fixed versions: 1.2.2_pre2-r0
musl
Fixed versions: 1.2.2_pre2-r0
musl
Fixed versions: 1.1.20-r6
Complete source record
{
"id": "77ca98300bafa28b20497e4f5708a69a20080c99b4fce73c6cfca05284b4bf69",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2020-28928",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALPINE-CVE-2020-28928",
"summary": "In musl libc through 1.2.1, wcsnrtombs mishandles particular combinations of destination buffer size and source character limit, as demonstrated by an invalid write access (buffer overflow).",
"evidence": "osv:ALPINE-CVE-2020-28928",
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"severity": "medium",
"structured": {
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"aliases": [
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"metrics": [
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"affected": [
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],
"package": {
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"ecosystem": "Alpine:v3.24"
},
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{
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],
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"ecosystem": "Alpine:v3.9"
},
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],
"modified": "2026-10-26T11:17:55.166308572Z",
"provider": "osv",
"upstream": [
"CVE-2020-28928"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2020-28928"
]
},
"related_cves": [
{
"value": "CVE-2020-28928",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 450596,
"published_at": "2020-11-24T18:15:12.207+00:00"
}