Medium
Security advisory
The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2023-53159
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 13:45 UTC · Revision 1
Source evidence
The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.
osv:CVE-2023-53159
Complete source record
{
"id": "4a926c81c0ba3a4783e68c04755483ebece44a775879949dbd6da2a12f77b4a4",
"url": "https://osv.dev/vulnerability/CVE-2023-53159",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2023-53159",
"summary": "The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.",
"evidence": "osv:CVE-2023-53159",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2023-53159",
"aliases": [
"CVE-2023-53159",
"GHSA-xcf7-rvmh-g6q4",
"RUSTSEC-2023-0044"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:L"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/rust-openssl/rust-openssl",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "d7dae6fb45aca39ae9793be6365d92e870e0b8ee"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "0.10.55"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"cpe": "cpe:2.3:a:sfackler:openssl:*:*:*:*:*:rust:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "0.10.55"
}
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"source": "CPE_RANGE"
}
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}
}
],
"versions": [
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53159.json"
}
}
],
"modified": "2026-10-28T02:30:36.208281314Z",
"provider": "osv",
"references": [
"https://crates.io/crates/openssl",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53159.json",
"https://nvd.nist.gov/vuln/detail/CVE-2023-53159",
"https://rustsec.org/advisories/RUSTSEC-2023-0044.html",
"https://github.com/sfackler/rust-openssl/issues/1965"
],
"provider_metadata": {
"cwe_ids": [
"CWE-126"
],
"cna_assigner": "mitre",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53159.json"
}
},
"related_cves": [
{
"value": "CVE-2023-53159",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 503274,
"published_at": "2025-07-28T00:00:00+00:00"
}