UnratedFix available
libproxy — security advisory
Format string vulnerability in the print_proxies function in bin/proxy.c in libproxy 0.3.1 might allow context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in a proxy name, as demonstrated using the http_proxy environment variable or a PAC file.
- Products
- libproxy
- Affected versions
- Not specified
- Fixed versions
- 0.3.1-4
- CVEs
- CVE-2012-5580
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:30 UTC · Revision 1
Source evidence
Format string vulnerability in the print_proxies function in bin/proxy.c in libproxy 0.3.1 might allow context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in a proxy name, as demonstrated using the http_proxy environment variable or a PAC file.
osv:DEBIAN-CVE-2012-5580
libproxy
Fixed versions: 0.3.1-4
libproxy
Fixed versions: 0.3.1-4
libproxy
Fixed versions: 0.3.1-4
Complete source record
{
"id": "b9eba9cf79ef1753b5840a596e004c6f544ff2f81477ea35bcb1b9f988cbb067",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2012-5580",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2012-5580",
"summary": "Format string vulnerability in the print_proxies function in bin/proxy.c in libproxy 0.3.1 might allow context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in a proxy name, as demonstrated using the http_proxy environment variable or a PAC file.",
"evidence": "osv:DEBIAN-CVE-2012-5580",
"products": [
{
"name": {
"value": "libproxy",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.3.1-4",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libproxy",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.3.1-4",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libproxy",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.3.1-4",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2012-5580",
"aliases": [
"DEBIAN-CVE-2012-5580"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.3.1-4"
}
]
}
],
"package": {
"name": "libproxy",
"purl": "pkg:deb/debian/libproxy?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-5580.json"
},
"ecosystem_specific": {
"urgency": "low"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.3.1-4"
}
]
}
],
"package": {
"name": "libproxy",
"purl": "pkg:deb/debian/libproxy?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-5580.json"
},
"ecosystem_specific": {
"urgency": "low"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.3.1-4"
}
]
}
],
"package": {
"name": "libproxy",
"purl": "pkg:deb/debian/libproxy?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-5580.json"
},
"ecosystem_specific": {
"urgency": "low"
}
}
],
"modified": "2026-10-23T17:47:22.901941363Z",
"provider": "osv",
"upstream": [
"CVE-2012-5580"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2012-5580"
]
},
"related_cves": [
{
"value": "CVE-2012-5580",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 416614,
"published_at": "2014-10-27T22:55:09.907+00:00"
}