High
Security advisory
A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-1752
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:46 UTC · Revision 1
Source evidence
A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32.
osv:CVE-2020-1752
Complete source record
{
"id": "ff3f499873ce9e5d5005bf6059c6beffc840a222b26502e55616b461ec6efdcd",
"url": "https://osv.dev/vulnerability/CVE-2020-1752",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-1752",
"summary": "A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32.",
"evidence": "osv:CVE-2020-1752",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-1752",
"aliases": [
"CVE-2020-1752"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://sourceware.org/git/glibc.git",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "3de512be7ea6053255afed6154db9ee31d4e557a"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "2.32"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-1752.json"
}
}
],
"modified": "2026-10-24T10:30:21.831376905Z",
"provider": "osv",
"references": [
"https://cert-portal.siemens.com/productcert/html/ssa-398330.html",
"https://cert-portal.siemens.com/productcert/html/ssa-831302.html",
"https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E",
"https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E",
"https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ddc650e9b3dc916eab417ce9f79e67337b05035c",
"https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html",
"https://security.gentoo.org/glsa/202101-20",
"https://security.netapp.com/advisory/ntap-20200511-0005/",
"https://usn.ubuntu.com/4416-1/",
"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1752",
"https://sourceware.org/bugzilla/show_bug.cgi?id=25414"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*"
],
"vendor_product": "gnu:glibc",
"extracted_events": [
{
"range": [
{
"fixed": "2.32.0"
},
{
"fixed": "2.32.0"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
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],
"vendor_product": "netapp:active_iq_unified_manager",
"extracted_events": [
{
"range": [
{
"introduced": "9.5"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
},
{
"introduced": "19.10"
},
{
"last_affected": "19.10"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-1752",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 430568,
"published_at": "2020-04-30T17:15:13.067+00:00"
}