Medium
rust-openssl — security advisory
A timing-based side-channel flaw exists in the rust-openssl package, which could be sufficient to recover a plaintext across a network in a Bleichenbacher-style attack. To achieve successful decryption, an attacker would have to be able to send a large number of trial messages for decryption. The vulnerability affects the legacy PKCS#1v1.5 RSA encryption padding mode.
- Products
- rust-openssl
- Affected versions
- 0.10.23-1, 0.10.23-1ubuntu0.1~esm1, 0.10.29-1, 0.10.36-1, 0.10.36-1ubuntu0.1~esm1, 0.10.45-1, 0.10.57-1, 0.10.57-1ubuntu0.1~esm1, 0.10.70-1, 0.10.72-1, 0.10.73-1, 0.10.81-1
- Fixed versions
- Not specified
- CVEs
- CVE-2024-3296
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:08 UTC · Revision 1
Source evidence
A timing-based side-channel flaw exists in the rust-openssl package, which could be sufficient to recover a plaintext across a network in a Bleichenbacher-style attack. To achieve successful decryption, an attacker would have to be able to send a large number of trial messages for decryption. The vulnerability affects the legacy PKCS#1v1.5 RSA encryption padding mode.
osv:UBUNTU-CVE-2024-3296
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
Complete source record
{
"id": "0de283e55932305c99de7b9b37199ee8077203d9956c04716a701576e1b26820",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2024-3296",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2024-3296",
"summary": "A timing-based side-channel flaw exists in the rust-openssl package, which could be sufficient to recover a plaintext across a network in a Bleichenbacher-style attack. To achieve successful decryption, an attacker would have to be able to send a large number of trial messages for decryption. The vulnerability affects the legacy PKCS#1v1.5 RSA encryption padding mode.",
"evidence": "osv:UBUNTU-CVE-2024-3296",
"products": [
{
"name": {
"value": "rust-openssl",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.10.23-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.10.23-1ubuntu0.1~esm1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "rust-openssl",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.10.29-1",
"evidence": "/affected/1/versions"
},
{
"value": "0.10.36-1",
"evidence": "/affected/1/versions"
},
{
"value": "0.10.36-1ubuntu0.1~esm1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "rust-openssl",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.10.45-1",
"evidence": "/affected/2/versions"
},
{
"value": "0.10.57-1",
"evidence": "/affected/2/versions"
},
{
"value": "0.10.57-1ubuntu0.1~esm1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "rust-openssl",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.10.70-1",
"evidence": "/affected/3/versions"
},
{
"value": "0.10.72-1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "rust-openssl",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.10.73-1",
"evidence": "/affected/4/versions"
},
{
"value": "0.10.81-1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "rust-openssl",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.10.72-1",
"evidence": "/affected/5/versions"
},
{
"value": "0.10.73-1",
"evidence": "/affected/5/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2024-3296",
"aliases": [
"UBUNTU-CVE-2024-3296"
],
"metrics": [
{
"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"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rust-openssl",
"purl": "pkg:deb/ubuntu/rust-openssl?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"0.10.23-1",
"0.10.23-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-3296.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-openssl-dev",
"binary_version": "0.10.23-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rust-openssl",
"purl": "pkg:deb/ubuntu/rust-openssl?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"0.10.29-1",
"0.10.36-1",
"0.10.36-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-3296.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-openssl-dev",
"binary_version": "0.10.36-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rust-openssl",
"purl": "pkg:deb/ubuntu/rust-openssl?arch=source&distro=esm-apps%2Fnoble",
"ecosystem": "Ubuntu:Pro:24.04:LTS"
},
"versions": [
"0.10.45-1",
"0.10.57-1",
"0.10.57-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-3296.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-openssl-dev",
"binary_version": "0.10.57-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rust-openssl",
"purl": "pkg:deb/ubuntu/rust-openssl?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"0.10.70-1",
"0.10.72-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-3296.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-openssl-dev",
"binary_version": "0.10.72-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rust-openssl",
"purl": "pkg:deb/ubuntu/rust-openssl?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"0.10.73-1",
"0.10.81-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-3296.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-openssl-dev",
"binary_version": "0.10.81-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rust-openssl",
"purl": "pkg:deb/ubuntu/rust-openssl?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"0.10.72-1",
"0.10.73-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-3296.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-openssl-dev",
"binary_version": "0.10.73-1"
}
]
}
}
],
"modified": "2026-10-17T12:56:36.430340116Z",
"provider": "osv",
"upstream": [
"CVE-2024-3296"
],
"references": [
"https://ubuntu.com/security/CVE-2024-3296",
"https://github.com/sfackler/rust-openssl/issues/2171",
"https://www.cve.org/CVERecord?id=CVE-2024-3296"
]
},
"related_cves": [
{
"value": "CVE-2024-3296",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 355842,
"published_at": "2024-04-04T14:15:00+00:00"
}