CVE-2022-4304
- Source
- https://cve.org/CVERecord?id=CVE-2022-4304
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-4304.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-4304
- Aliases
- Downstream
- Related
- Published
- 2023-02-08T20:15:23.887Z
- Modified
- 2026-04-09T09:03:45.116255Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- 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.
- References
Affected packages
Git / github.com/openssl/openssl
Affected ranges
- Type
- GIT
- Repo
- https://github.com/openssl/openssl
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedIntroduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "versions": [ { "introduced": "1.0.2" }, { "fixed": "1.0.2zg" }, { "introduced": "1.1.1" }, { "fixed": "1.1.1t" }, { "introduced": "3.0.0" }, { "fixed": "3.0.8" }, { "introduced": "0" }, { "fixed": "3.2.1" } ] }
Affected versions
Other
openssl-3.*
Database specific
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.2.40"
}
]
},
{
"events": [
{
"introduced": "2.7.0"
},
{
"fixed": "2.7.11"
}
]
},
{
"events": [
{
"introduced": "2.8.0"
},
{
"fixed": "3.7.34"
}
]
},
{
"events": [
{
"introduced": "3.8.0"
},
{
"fixed": "3.11.22"
}
]
},
{
"events": [
{
"introduced": "4.0.0"
},
{
"fixed": "4.3.16"
}
]
},
{
"events": [
{
"introduced": "4.4.0"
},
{
"fixed": "4.6.3"
}
]
}
]
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-4304.json"