gsd-2022-4304
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2022-4304",
"description": "A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection.",
"id": "GSD-2022-4304",
"references": [
"https://alas.aws.amazon.com/cve/html/CVE-2022-4304.html",
"https://www.debian.org/security/2023/dsa-5343",
"https://access.redhat.com/errata/RHSA-2023:0946",
"https://www.suse.com/security/cve/CVE-2022-4304.html",
"https://ubuntu.com/security/CVE-2022-4304"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
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"id": "GSD-2022-4304",
"modified": "2023-12-13T01:19:15.253383Z",
"schema_version": "1.4.0"
}
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}
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"url": "https://www.openssl.org/news/secadv/20230207.txt"
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"url": "https://security.gentoo.org/glsa/202402-08"
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{
"affected_range": "\u003e=1.0.2 \u003c1.0.2zg||\u003e=1.1.1 \u003c1.1.1t||\u003e=3.0.0 \u003c3.0.8",
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"cwe_ids": [
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"CWE-203",
"CWE-937"
],
"date": "2023-08-08",
"description": "A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection.",
"fixed_versions": [
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"1.1.1t",
"3.0.8"
],
"identifier": "CVE-2022-4304",
"identifiers": [
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],
"not_impacted": "All versions before 1.0.2, all versions starting from 1.0.2zg before 1.1.1, all versions starting from 1.1.1t before 3.0.0, all versions starting from 3.0.8",
"package_slug": "conan/openssl",
"pubdate": "2023-02-08",
"solution": "Upgrade to versions 1.1.0l, 1.1.1t, 3.0.8 or above.",
"title": "Timing based side channel",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2022-4304",
"https://www.openssl.org/news/secadv/20230207.txt"
],
"uuid": "1f6fb2cb-9309-46ae-b499-347a47506dc8"
}
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}
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"id": "CVE-2022-4304",
"lastModified": "2024-02-04T09:15:08.627",
"metrics": {
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
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"source": "nvd@nist.gov",
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"published": "2023-02-08T20:15:23.887",
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"source": "openssl-security@openssl.org",
"url": "https://security.gentoo.org/glsa/202402-08"
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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