MediumFix available
libslirp, qemu and 2 more products — security advisory
In libslirp 4.1.0, as used in QEMU 4.2.0, tcp_subr.c misuses snprintf return values, leading to a buffer overflow in later code.
- Products
- libslirp, qemu, slirp, slirp4netns
- Affected versions
- Not specified
- Fixed versions
- 1.0.1-1, 1:1.0.17-11, 1:4.1-2, 4.2.0-1
- CVEs
- CVE-2020-8608
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 14:10 UTC · Revision 1
Source evidence
In libslirp 4.1.0, as used in QEMU 4.2.0, tcp_subr.c misuses snprintf return values, leading to a buffer overflow in later code.
osv:DEBIAN-CVE-2020-8608
libslirp
Fixed versions: 4.2.0-1
libslirp
Fixed versions: 4.2.0-1
libslirp
Fixed versions: 4.2.0-1
qemu
Fixed versions: 1:4.1-2
qemu
Fixed versions: 1:4.1-2
qemu
Fixed versions: 1:4.1-2
slirp
Fixed versions: 1:1.0.17-11
slirp
Fixed versions: 1:1.0.17-11
slirp
Fixed versions: 1:1.0.17-11
slirp4netns
Fixed versions: 1.0.1-1
slirp4netns
Fixed versions: 1.0.1-1
slirp4netns
Fixed versions: 1.0.1-1
Complete source record
{
"id": "73f68b0f8f80088eca06bd6f502ac3c75aa31f5e598822b0105eea54018e6f29",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-8608",
"method": "structured",
"payload": {
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"title": "DEBIAN-CVE-2020-8608",
"summary": "In libslirp 4.1.0, as used in QEMU 4.2.0, tcp_subr.c misuses snprintf return values, leading to a buffer overflow in later code.",
"evidence": "osv:DEBIAN-CVE-2020-8608",
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"aliases": [
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"affected": [
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{
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"package": {
"name": "qemu",
"purl": "pkg:deb/debian/qemu?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
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"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-8608.json"
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],
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}
],
"modified": "2026-10-26T12:02:55.424896265Z",
"provider": "osv",
"upstream": [
"CVE-2020-8608"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-8608"
]
},
"related_cves": [
{
"value": "CVE-2020-8608",
"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 453260,
"published_at": "2020-02-06T17:15:14.723+00:00"
}