Medium
rust-rsa — security advisory
RustCrypto/RSA is a portable RSA implementation in pure Rust. Due to a non-constant-time implementation, information about the private key is leaked through timing information which is observable over the network. An attacker may be able to use that information to recover the key. There is currently no fix available. As a workaround, avoid using the RSA crate in settings where attackers are able to observe timing information, e.g. local use on a non-compromised computer.
- Products
- rust-rsa
- Affected versions
- 0.9.10-1, 0.9.2-2, 0.9.7-1, 0.9.9-1
- Fixed versions
- Not specified
- CVEs
- CVE-2023-49092
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:05 UTC · Revision 1
Source evidence
RustCrypto/RSA is a portable RSA implementation in pure Rust. Due to a non-constant-time implementation, information about the private key is leaked through timing information which is observable over the network. An attacker may be able to use that information to recover the key. There is currently no fix available. As a workaround, avoid using the RSA crate in settings where attackers are able to observe timing information, e.g. local use on a non-compromised computer.
osv:UBUNTU-CVE-2023-49092
rust-rsa
Fixed versions: Not specified
rust-rsa
Fixed versions: Not specified
rust-rsa
Fixed versions: Not specified
rust-rsa
Fixed versions: Not specified
Complete source record
{
"id": "3a3e2940659c592aefc5ab47097cfd35762a3b89b0c6093a761f7826e2b3b1b3",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2023-49092",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2023-49092",
"summary": "RustCrypto/RSA is a portable RSA implementation in pure Rust. Due to a non-constant-time implementation, information about the private key is leaked through timing information which is observable over the network. An attacker may be able to use that information to recover the key. There is currently no fix available. As a workaround, avoid using the RSA crate in settings where attackers are able to observe timing information, e.g. local use on a non-compromised computer.",
"evidence": "osv:UBUNTU-CVE-2023-49092",
"products": [
{
"name": {
"value": "rust-rsa",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.9.2-2",
"evidence": "/affected/0/versions"
}
]
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{
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{
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{
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"evidence": "/affected/3/versions"
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{
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}
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}
],
"severity": "medium",
"structured": {
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"aliases": [
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],
"metrics": [
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"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
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],
"affected": [
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"ecosystem": "Ubuntu:24.04:LTS"
},
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],
"database_specific": {
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"ecosystem": "Ubuntu:26.10"
},
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"database_specific": {
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"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
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"0.9.9-1",
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],
"modified": "2026-10-17T12:56:26.241618602Z",
"provider": "osv",
"upstream": [
"CVE-2023-49092"
],
"references": [
"https://ubuntu.com/security/CVE-2023-49092",
"https://github.com/RustCrypto/RSA/security/advisories/GHSA-c38w-74pg-36hr",
"https://github.com/RustCrypto/RSA/issues/19#issuecomment-1822995643",
"https://rustsec.org/advisories/RUSTSEC-2023-0071.html",
"https://people.redhat.com/~hkario/marvin/",
"https://www.cve.org/CVERecord?id=CVE-2023-49092"
]
},
"related_cves": [
{
"value": "CVE-2023-49092",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 355672,
"published_at": "2023-11-28T21:15:00+00:00"
}